Play Doh Hide and Seek

                                                          

This activity has been originally taken from one of the most popular and user-friendly guides, the Out of Sync Child Has Fun. I have done a couple of modifications according to own working experience. You may follow the book link to know more about Sensory Activities where there are great fun and learning activities have been described. 

This is a fantastic activity especially for little ones however teens would also enjoy it. It improves motor planning, fine motor skills as well as bilateral coordination (ability to synchronise both right and left sides of the body, for example, making a sandwich or playing throw ball). 

It improves the ability to discriminate objects with and without vision (tactile discrimination), proprioception sensory processing skills, midline crossing, and fine motor control, along with visual perception skills. Mainly it improves sensory awareness in the fingers required to provide information about the grasp of the tools, toys and surface. Reduced sensory awareness will require greater visual monitoring. 

The activity also improves attention span and concentration on the given task, along with hand and intrinsic fingers strength. Feeling, recognising and understanding about physical characteristics of objects (size, shape, density, texture, and weight) is an integral part of tactile discrimination which can be difficult for our kids with sensory issues.

We aim to make their fingers ‘feel’ of different textures in a fun way and improve their learning about various objects even when they are not seeing them! So let’s start!

Activity Requirements:

Play-Doh

Plastic or rubber toys (such as Lego, plastic apple, small-sized ball)

Large and small buttons

Safety pin or hairpin

Different size coins

Rice or Lentil Box 

Container for sorting- Cup or jewellery box

    

Procedure:

1. Wrap the Play-Doh around the toy to make and make sure that it is not completely covered. The child should be able to see the colour of the toy which will work as a clue for her to recognise it easily. Once the toy is covered you may ask the child, “Do you know which toy is it.

2. Once the child is master in the above-mentioned task we can switch to the next level of effort. This time to increase the level of difficulty, pack the toy thicker and leave a small portion unpacked to grade the activity to the next level. Once the toy is packed you may ask the child, to recognise the toy using his fingertips and visual sense. 

3. The further variation could include covering small objects in the Play-doh such as coins, hairpins, beads, buttons and asking the child to feel the shape of the object covered with Play-doh and guess what it could be. These objects can be,

• Different sized buttons
• Safety or hairpins (make sure it does not injure him)
• Different sized coins
• Rubber
• Small Lego pieces
• Pen caps

• Pack these objects fully. Now we can play treasure hunt. Hide the packed things in a box of rice or lentils. Initially, he can recognise and discriminate them without being time farmed or blindfolded. Later, on mastery of task gradation of activity will be great fun and challenge too! 

Activity Gradation:

Time Framed:

The activity can be challenged by grading it according to time. An adult may ask the child to recognise the toy within a set time limit such as 60 seconds or two minutes. Time should be allotted depending on the child’s abilities and needs. It is important to understand that activity should enhance his level of motivation to peruse and complete the given task successfully.

Target should be achievable. The child might lose interest in activity if she is unable to complete the task within the time frame. So make during the first attempt child should be provided sufficient time to complete the activity successfully. This will increase his level of motivation and self-confidence.

Time can be reduced, gradually, say, from 3 minutes to 30 seconds.

Blindfold: 

Once the toy is packed, leaving a small portion as a clue, ask the child whether she would like to do this activity being blindfolded.

If both child and parent think, it will be achievable, to recognise the toy, then go further and blindfold him. The child might take longer than usual time to recognise since his visual sense has been occluded. Parents should encourage her to use his fingertips sliding them around the edges and corners of the toy, to learn about shape, and size of it.

Help her to feel the toy where it is unpacked. This will help in improving tactile recognition and discrimination of the object. On the repeated practice of feeling different shapes, sizes, textures, density and weight (physical characteristics of objects) child’s touch discriminating abilities will improve to the maximal possible extent. At this level, pack the toy completely and thicker to increase the level of challenge.

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Benefits:

· Tactile Discrimination: Playing with different textures which have varying viscosities increase tactile perception, exploration and discriminatory sense as well as visualisation skill along with In-Hand-Manipulations skills which involve translation.
·  Vast Tactile experience = Improvement in Tactile perception + discrimination 
·   Visualisation Skills
·    Body Scheme
·  Speed, Accuracy and Precision 
·  Fine Motor Skills
· Self-Esteem

Body awareness: Why is it so important?

Poor Body Awareness = Poor Motor Planning =Poor Gross & Fine Motor Skills

Body awareness is about understanding where our bodies are in space, as well as where and how we move them.
It is the internal awareness sense of the body, and its function is to make our body aware about, where it is, in relation to the environment.Body awareness is developed through proprioception sense and kinaesthesia. 

Moreover, it can be explained as knowledge of the boundaries of the body and its movements within space.For instance, it lets us know where is our right hand or left leg and what is the relationship between the two.

This develops since 9^th -12^th months in an embryo and completely develop by the time child is 5 years. Infants learn about their bodies and its relationship to surrounding on them during the normal course of development. Exploring, and manipulating objects is a process of developing body scheme. As they grow they learn about distances and sizes.

How does body awareness act on our body?

Our brain has body “maps” which carry information about every body part and its relationship to each other.

These maps support person to realise how his own body feels like when vision is blocked. Body awareness tells about the "doing sense" of the body without looking at different body parts. For example, scratching our back when it itches or wiping face when it has dirt on it. There are so many actions which are taken as for granted by us however our brain and body works phenomenally to process sensory information from the brain to various sensory systems. 

In above face wiping example, the brain sends messages to elbow so that specific muscles can contract and relax to bend elbow joint and hand can go up to face to clean the dirt. Related hand muscles also contract and relax.

We are able to put the lid on water bottle or pen without looking at it, control tap faucet while talking to someone, are some of the examples of body's "doing sense" while we are busy focusing on primary tasks. 

Our body's ability to change its posture unconsciously, when muscles of the particular group are fatigued in one position is a strong example body awareness.This process happens automatically while are sleeping or awake. 

Our proprioception receptors update these body “maps” (precepts) which helps the

brain in sending messages to needed body part for further actions. 

In children with the poor body awareness, the relationship between body actions and these “maps” do not work well. Due to poor functioning of body percept, the brain is not able to plan actions leading to poor motor planning. This is the reason children with Dyspraxia are disorganised, forgetful and clumsy. Their brain is not able to do motor planning causing them not being able to judge speed, weight rate, the direction of any object or task. 

Moreover, these maps also contain memories related to environment such as gravity. For example, while sitting on swing we know our upper body is on swing however legs are swinging. 

Another common example is while swimming whether our body is in deep or shallow water. In both the situations, body maps help the brain to plan the movements according to the state of the body.

Signs and Symptoms: 

1) Might bump into other people or stand in very close proximity to other people when interacting with them.

2) May have organisational difficulties in the classroom as well as home.

3) The concept of right and left, up-down, under-over, in-out is confusing for children to understand and learn therefore following directions is a difficult task.

4) For children with poor body awareness subjects like mathematics, physics are difficult to understand. Geometry, shapes, volumes, calculations are hard to understand.

5) Copying from the blackboard is a struggle for them due to midline crossing difficulties.

6) There may be difficulty while playing football or cricket. Judging distance and speed of ball can be an issue.

7) Body Awareness also interferes with learning since child’s brain is not able to do motor planning resulting in poor control over tasks. e.g. self-care. Usually, these children also have laterality and coordination difficulties. They can be ambidextrous.

Tips for improving Body Awareness

1) Visual Feedback: Learning new task is challenging for them, especially, gross motor skills such as jumping jacks, synchronised opposite sideways or same side jumping, or skipping. Most of the gross motor tasks require proprioceptive input, received through muscle and joint receptors, however, due to poor proprioceptive sensory processing, the child faces  difficulties in performing new dance steps, actions or exercises. These children should be given regular visual feedback through a mirror which can support them seeing what they are doing in order to learn and manipulate their body in the correct manner.Moreover, repetition of novel tasks is important.


2) Heavy Work Activites (Proprioceptive Input): Pushing and pulling heavy objects such as barrels, cart, large bean bags, pile of chairs or pushing another child on swing will provide muscles and joint receptors information about position of body parts (leg, arms, head and trunk) in space and in relationship with other objects.These activities provide deep pressure to muscles, joints, ligaments and key points (shoulder, pelvis and hips) to the tactile defensive child.Moreover, living movement break will support the child to concentrate better in studies such as sending him to the office to handover papers or asking him to distribute assignments in the classroom.


Hippotherapy: This therapy is used under the supervision of an occupational therapist. This process involves riding a horse with simultaneous involvement of a variety of therapeutic activities. Riding a horse provides various kinds of sensory information including, tactile, visual, proprioceptive and vestibular.Maintaining positions, staying alerted while riding, facilitates postural control and balance. This therapy helps in developing balance, core body strength (changing different positions, supine, prone, quadruped), as well as midline crossing, weight shifting and upper and lower body control. Resource


4) Obstacle courses: Make obstacle courses and ask the child to complete them in different positions (supine, prone, kneeling) while sitting on a scooter board.Engaging children into creating obstacle courses will support Dyspraxic children in developing ideation, planning and execution skills. Moreover, moving on the swing, through the tunnel, over the bench will help in developing spatial awareness concepts in relationship to the environment.


3) Animal Walks: Walking like a bear, the elephant, a duck or a seal will improve body sense.It will help in developing body's internal awareness. Additionally, animal walks provide proprioceptive-vestibular inputs activating sensory processing systems. Along with this, core body strengthening, balance, postural control of upper and lower body develops supporting the child to perform better in gross motor and fine motor skills.


5) Involve in home chores: Involving the child in kitchen activities such as asking him to give you different items needed will help to develop under-over, left-right concept. You may ask him to put the cake for baking in the lowermost shelf of the oven or put in dishes within the dishwasher. Doing work like car washing, vacuuming, cleaning, mopping will give proprioceptive feedback. Tasks like preparing to dine  (putting cutlery on the table, with correct position of utilities) will help in developing left, right, top, bottom concepts.


6) Target Games: Activities involving trunk rotation and both sides of the body should be incorporated such as throwing bean bags while picking from left and throwing them to the right side. Throwing them in hoops, buckets or bags can be done for proprioceptive input.Moreover, throwing balls, rings, darts at targets from various distances can be helpful to improve visual motor skills.Activities, like tossing balls and playing bat ball, will improve eye-hand coordination too.


7) Body Paint: Ask the child to paint his particular body parts such as right-hand or left-hand index finger. This can be a great fun activity for sensory seeking seekers and children with tactile discrimination difficulties. Drawing different shapes, letters and numbers on hand, leg and back will help in improving body awareness as well as self-concept.

8) Hiding Objects Games: Hide different objects in the room and ask the child to find them. Two things can be hidden together such as lock and key.Throwing balls ring darts, at the target. 


9) Confined Space: Children should be given small, organised spaces to work in as they feel secure and confident in confined spaces compared to large space areas.

10) Handwriting difficulties: This is a concern for children with poor body awareness. To know more, read the article.  

Why should we use Visual Support System?

Many children with ASD, ADHD, SPD respond positively to schedule charts, sign posters, and other visual strategies. This form of information presentation encourages them to communicate appropriately and helps to develop language and process information. Thus, it helps them to be more independent and self-confident to verbalise or make other understand their own feelings.


Visual strategies can be purposeful for expressing and understanding feelings and emotions, while going through transitions or changes, visiting a new place or meeting a new person.

A visual schedule is a representation of what is going to happen throughout the day or within a task or activity. It helps in carrying out life skills activities or task in hand in a planned manner and reduces high levels of anxiety 

It encourages structure and organisation in daily routine.

It can be in form of timetables, behavioural sheets, safety charts, activity sequencing for self-care skills (example-tooth brushing) or independent living skills (driving, sex education), emotion’s chart, social skills, instructions or reminders.

Marlene J. Cohen and Donna Sloan are authors of book Visual Supports for People with Autism: A Guide for Parents and Professionals (2007) which highlights the significance of visual support strategies for children and adults with autism.

Children with ASD often display anxious behaviours or act out when their routines change or they are in unfamiliar situations. Visual reminders can support them understand what to expect and what will happen next to reduce the anxiety. They help them to pay attention to details and understand situation visually in a better manner.

One of the main problems of people having ASD is social interaction, using language and repetitive behaviours. They have difficulties understanding instructions and display limited interests in activities. A visual support system helps in countless areas helping the child to work systematically and rationally.

Finally, some children with ASD are anxious or act out when their routines change or they are in unfamiliar situations. Visuals can help them understand what to expect and will happen next and also reduce anxiety. Visuals can help them pay attention to important details and help them cope with change.

Often ASD children get anxious due to changes in routine, classroom schedule, while meeting new people, and in unfamiliar situations. Visual support strategies can help them understand what to expect and when will it happen. Rather than getting panicked, agitated, angry, and anxious these children can look into the picture cards, or visual charts and follow the plan.

Moreover, parents’ teachers can easily communicate with them using visual reminders. This decreases frustration and may help decrease problem behaviours that result from difficulty communicating. Visuals can promote appropriate, positive ways to communicate.

The visual schedule breaks down the activity into multiple steps so that child can understand, plan and execute the task easily and complete the task (e.g. life-skill, such as brushing, shoe lace tying) successfully with reduced anxiety levels. According to Zigmond et. al (1999), anxiety caused by any reasons can aggravate sensory defensiveness in children with sensory modulation difficulties. Therefore, to minimise the sensory issues, caused due to raised levels of anxiety and stress visual reminders can be a helpful tool to a great extent.

Furthermore, anxiety resulting due to lack of information or fear of unfounded apprehension results in concentration difficulties, restlessness, hyperactivity, distractibility as well as learning abilities.

The manifestation of anxiety has been found to be associated with complex brain structure, known as limbic system and components of the reticular system.

It is better to have a portable schedule such as on a clipboard or a   binder or it can be fixed to a permanent place such as child’s bedroom or washroom wall or refrigerator. 

Fundamentally, the schedule should be visible to a child frequently and easily so that he can access it before or while performing planned task. Initially, verbal cues such as “check your schedule” can be prompted if a child gets baffled to perform any task.

Resources for Using Visual Supports: 

❏ www.do2learn.com 

❏ card.ufl.edu/content/visual.html

❏ www.kidaccess.com/index.html 

❏ Eckenrode, L., Fennell, P., & Hearsey, K. (2004). Tasks Galore for the Real World. Raleigh, NC: Tasks Galore. 

References:

Autism Speaks (www.autismspeaks.org/)

National Autistic Society (http://www.autism.org.uk/)

Bernard-Opitz, V, and Häußler, A. (2011) Visual support for children with autism spectrum disorders: materials for visual learners. Shawnee Mission, Kansas: AAPC Publishing  Bondy, A. and Frost, L. (2011).

A picture’s worth: PECS and other visual communication strategies in autism. 2nd ed. Bethesda, Maryland: Woodbine House  Cohen, M.J. and Sloan, D. L. (2008) Visual supports for people with autism: a guide for parents and professionals. Bethesda, Maryland: Woodbine House

Strategies for Tactile Defensiveness!

                                                     

Touch is the first sensation that starts developing in the womb at five weeks. Some children react adversely, negatively or display  escape-like behaviour on being touched, hugged or kissed since they have difficulties in processing sensory information due to the poor tactile system. This behaviour is referred as Tactile Defensiveness.

Due to the inaccurate functioning of touch mechanism and neural system, these children are often in the state of 'red alert'. They may react by clinging or complaining (fright) to someone, or lashing out (fight) and running away (flight).

Often children displaying tactile defensiveness may also have self-stimulating behaviour. Repeated movements such as hand flapping, body rocking, hand gazing, spinning have been found prevalent in children with developmental disabilities and Autism.

Research done by Feig et al (2012), concludes that there is a significant relationship between Tactile defensiveness and Self-stimulatory behaviours.They both are problematic as they appear and interfere in child's day-to-day activities. For example, a child who engages in hand flapping may not be able to do any other activity such as washing herself or eating on her own. Likewise, due to tactile defensiveness doing teeth-brushing or other self-care activities will be difficult.


Here are some of the suggestions for tactile defensiveness which may or may not be helpful, as each child is different, however making appropriate changes within child’s environment or strategies according to his needs and priorities can support him to live better and stay calmer.

A) Understand your child: (Address child's issues seriously= Trustworthy relationship + better behaved child)

Most importantly, it is parent’s responsibility to understand their child and her problems. Giving labels such as she has "bad behaviour" or "poor "attitude will not solve the issue. 

If she says “something always hurts me” or gets irritated due to scratching herself all the time, do not think she is pretending to gain empathy or purposefully trying to seek attention. 

There must be something unusual happening causing her to behave in this manner. 

Developing trust and developing an understanding of child's difficulties are essential parts of combating any problem. 

It will be great if parent and child both stay on the same team as good team players to resolve the issue rather than opponents where parents label the child for being anti-social frequently, and child reacts impulsively and aggressively on hearing those words over and again. 

B) Deep Pressure: (Leads to release of Dopamine or "happy neurotransmitter"= Calm brain & relaxed body)

Firm massage or deep pressure with pillows, cushions or rolling in a weighted blanket is very calming. Parents should understand signals when these strategies are needed. Children having sensitivities are overloaded with touch or noise in crowded places or parties. Parents should be aware of these situations and intervention should be provided before emotional or anger outbursts happens.Children get sleep disturbances caused due to sensory issues.Using techniques like Wilbarger Brushing Protocol  has been found to be an effective way of calming child for better sleep.
This should be under the supervision of Occupational Therapist or consult child's OT before trying Brushing Technique.

C) Weighted Items: (Stimulates body joints & muscles = Improves self-regulation,modulation,stress and anxiety)

Wearing weighted blankets, vests, backpacks or hats can have the calming effect in the classroom as well as at home. Great range of weighted items is available on Amazon such as ankle weights, lap weights shoulder and neck weights. They help to calm down a child in the classroom as well as any other environment leading her to focus on the task and reduce distraction. Weighted blankets are very helpful in calming the child’s distractibility, emotional liability, and hyper activeness. Another very good resource is TFH, South Paw. 
T-Jackets have been found to be a good resource of calming down a child. They have been scientifically customised for providing deep pressure and calming effects. 

D) Safety: (Prevention is better than cure so TAKE-CARE of child!)

Children who are hypo-responsive or sensory seeking towards touch are unaware of bruises and injuries. They do not get pain sensation messages from brain centers due to which they are prone to injuries. They may display self-stimulating or self-injurious behaviours along with tactile defensiveness.The stereotyped behaviours are common among Autistic children. Most common form is motor patterns are hand flapping, body gazing or object manipulation. Temple (1992) in her study Calming Effects of Deep Touch Pressure in Patients with Autistic Disorder, College Students, and Animals has suggested that Tactile Defensiveness co-exists with Stereotypical behaviour in Autism .Sensory Modulation and regulation is an important function which does not work well in both hyper and hyposensitivity of touch.It is important to follow some hands-on strategies such as:

• Use of sensory experiences :Such as trampoline jumping,obstacle course, running
• Follow Routines and maintain structure: e.g., planning a week ahead
• Communication: Understanding child's behaviour in anticipation, environment, emotional liability.
• Visual Support: Emotion's chart, use of PECS.
• Talk to GP about Medication.
• Use Barriers such as using cushions or pillows if the child does head banging,or tie the cloth on his hand to reduce self-biting.
• Use soft furniture.
• Keep rooms safe, the child should not be able to lock himself in a room, windows should not be wide-open.
• Keep sharp objects like knife, fork, scissors, razors out of reach of the child.

F) Fabrics: (Removal of unpleasant sensory input = Relief & physical comfort)

Pay attention to the different fabrics. Following tips may be helpful related to fabrics:-

• Give preference to child's fabric or texture.Some children like to wear cotton and avoid woolens, synthetics or any other texture that might irritate them. 
• Wearing skin fit clothing is preferable than loose clothing. 
• Stick to seamless clothing. 
• Liners and tags are always irritable making child impulsive and distracted easily. Removing or cutting tags is the simple solution for this. 
• As far as footwear is concerned, it should be comfortable and slip on type. Fasteners are also the good option if he finds tying laces complicated.
• Long sleeves are preferable than short arm sleeves. 
• Do not force him to wear belts, waistbands if he doesn’t feel good about it.

H) Active Involvement: (Child knows himself better than anyone else)

Self-directed tactile experiences are more calming then done by anyone else. Therefore, encourage the child to perform activities himself rather than done passively, by anyone else for him, however, assistance or supervision may be needed for completing tasks. After bath let him rub himself or put lotion independently since he can judge well how much deep firm pressure will be calming for self. Make your own Play-Doh at home.

I) Classroom Strategies: (Favourable IEP = Better provisions = Better behaved child + raised self-esteem)

Let the child stand last in a row in school. Let him

sit alone if he gets distracted by other pupil’s touch. Talk to teachers and school management to create awareness about your child’s difficulties. Teachers should know what child is going through and why is he distracted multiple times or scratches himself during the lessons. They should allow the child to do wall pushes or chair pushes if he feels calming during break times. The child should also get movement breaks if the teacher allows.  This should be included in his IEP. http://www.additudemag.com/adhd/article/5894.html

J) Inform before touching: (Respect child's integrity)

Hugs, kisses or any other type of touch should be done with consent. Ask or inform him before touching the child. This reduces anxiety levels and arousal too.Touching without consent can create disruptive behaviour. To know more about cause and neuroscience of tactile defensiveness click here.

K) Heavy Work Activities (Proprioceptive Input): (Tactile + proprioceptive input = calming effects,reduced anxiety,disruptive behaviour)

Pushing and pulling heavy objects such as barrels, carts, large bean bags,
the pile of chairs or pushing another child on the swing. All this 
gives proprioceptive input!

These activities provide deep pressure to muscles, joints, ligaments and key points of the body (Shoulders, Pelvis, Hips) to a tactile defensive child. 
Moreover, giving movement breaks will support a child to concentrate better in studies, such as sending him to an office to handover papers or asking him to distribute assignments in the classroom. See Classroom strategies for more information.

Tactile Defensiveness Vs Tactile Discrimination

Protective System (Dysfunction causes Tactile Defensiveness) 

Skin has an important function - protection. It acts as a physical barrier between us and the world. Our skin can feel too hot and cold sensations’ and respond accordingly, for example, on being pricked by a needle we are hurt and brain perceives pain sensation. For detailed description of Tactile Defensiveness click here

This system helps us in identifying light touch, crude touch, pain and

temperature which are protective in nature. When a needle is inserted in baby's buttocks for vaccination he feels uneasy and painful due to which he may cry aloud, this pain sensation happens due to protective touch system. Touch is the first sensation that starts developing in womb at five weeks. Protective system works phenomenally in a newborn, which helps him to react towards changes in temperature, come in contact with his or her mother and feel secure in her arms. It helps in sucking mother’s nipple to take the feed and feel her body’s warmth and cosiness. Due to this, children clasp fingers and toes when being touched.

When child tries to stand on his own feet however falls back due to lack of balance and postural control, he feels distressed and cries, since he feels pain in his buttocks or legs. The protective system supports child to sense the pain and discomfort. Similarly, dirty diapers make child uneasy and, colic pain (prominent from 0-6 Months) can cause too much of discomfort and distress.

SUMMARY SHEET

Neuroscience Background:

According to A. Jean Ayres (1972), tactile defensiveness is the response that occurs, when Dorsal Column-Medial Lemniscus (DCML) Pathway fails to exert inhibitory influence over Anterolateral (AL) Pathway.This means that DCML system does not work properly and hence AL system predominates on it due to which child reacts adversely, negatively on being touched, hugged or kissed.

The child has difficulties in hair washing, tooth brushing and nail cutting or avoids being touched reflecting Tactile Defensiveness. Child shows dislike towards parents or caregiver’s hugs, kisses or arm around the shoulder by either pushing or asking not to touch him.They don't like being messy or touching objects like glue, paints, shaving form or cream, shampoo, bubble bath.

Treatment Strategies:

Weighted Items: Wearing weighted vests, backpacks or hats can have calming effect in school. Great range of weighted items are available on Amazon such as ankle weights, lap weights shoulder and neck weights.

Heavy Work/Resistive activities: These activities have calming effect on brain. The muscles and ligaments work against the gravity proving deep-firm pressure to the body.

Brushing: Sensations received from clothes or their tags can be disrupting in nature. An Occupational Therapist (OT) may guide parents in administering the Wilbarger Brushing Protocol which reduces tactile defensiveness.It is designed a particular fashion to reduce tactile defenesivemess.The brushing is done in specific sequence at specific intervals throughout the day.  

Vibration: Vibrators can be useful around arms and legs however should be applied under supervision of Occupational Therapist who is Sensory Integration trained. It is another form of deep pressure that activates proprioceptors (receptors in muscles and ligaments). The adverse effects which will be immediately visible are dizziness, headache or nausea.

  

Tactile Discrimination System (Dysfunction causes Tactile Discrimination difficulties)

This system is fast, efficient and its development is essential for dextrous tasks and In-Hand-Manipulation. Discriminative system is associated with function of discrimination, such as exploring the world and differentiate between different types of touches such as type of texture, and size of object. For example, consider how easily we can differentiating between different size coins in our pocket without looking at them. Opening or closing the lid of jar or doing small buttons without actually looking at shirt are examples of Tactile Discrimination and in hand Manipulation. He might not react at all towards injuries, may have lack of body awareness. 

This system also responds to vibration, touch pressure and deep pressure

information. As the child achieves developmental milestones they also develop a sense of touch discrimination. As the child grows older his abilities of discriminating tools objects and toys improve gradually. 

In a normal developmental process, as the child grows and he develops fine motor skills ability to discriminate different fabrics (soft blanket or stuff toy and wooden surface), sizes (small and large Lego pieces) develop. They enjoy jumping on soft mattress bed rather than playing on the wooden floor with carpet. 

So if the child’s cluster of behaviours such as being accident prone, dropping things from hand, difficulties in managing buttons, zippers, laces and ties, difficulties in handwriting it may be considered that these activities are linked to dysfunction in tactile discrimination.

Neuroscience Background:

Discriminative system is associated with function of tactile discrimination such as detection of size, form, texture as well as movement across the skin as evidenced by Fisher and Bundy (1991). The dorsal column medial leminiscus (DCML) pathway and associated receptors are responsible to respond to stimuli transmitting vibratory, touch pressure, discriminatory and deep pressure information meaning for appropriate functioning of Discriminative system DCML system is responsible.

When there is damage in DCML pathway, the sensory feedback to higher brain centres (cortex) is interrupted leading to deterioration of coordinated fine motor abilities of child.  This can be evidenced with empirical research work done by Cohen (1999), who concluded that injury to DCML can lead to decreased sensory feedback to the cortex causing uncoordinated fine motor skills. Therefore, child has difficulties in carrying out fine motor activities such as doing laces, buttons, fastening zippers.