Every therapist is going to have their own way of assessing a child when first seen and tested for sensory processing difficulties and/or any other related concerns. Today’s podcast will hopefully help you to understand some of the common tests, the reasons why they are done and what they mean in order to get treatment started for your child. I should start by making sure everyone knows that Sensory Integration Disorder or Sensory Processing Disorder (the newest and most accurate term) is based on “theory” and is not totally proven scientifically. As of now, occupational therapists and other health professionals study the nervous system and how it works in terms of brain stem processing and then apply techniques that are expected to be helpful based on what is known from science and current brain research. It’s well known that these techniques are helpful and the right combination can certainly make a world of difference for a child with these difficulties. The questions at hand are: “how” it exactly works and “why” there are so many factors that make each child’s treatment so different from the next child. Because there is such variability, it’s very hard to pull a large group of children together, all with the same symptoms, in order to study their response to treatment with the most elite type of research which is a double blind study.
The following categories are often, but not always assessed in order to get a good overall picture of a child’s developmental and sensory processing status. Remember, every child is different!:
1. Sensory Processing -
Tests for sensory processing are highly variable as there is no set and definitive way to assess sensory processing and monitor progress over time. The most comprehensive evaluation tool available for testing sensory processing skills is the SIPT test, which is the “Sensory Integration and Praxis Test”. Therapists can take courses in order to become certified in the administration and interpretation of this test, but there are many ways to get the necessary information in order to help a child get better, so this is only one way to test a child. Commonly therapists use comprehensive checklists, the Winnie Dunn Sensory Profile, parent feedback and the evaluator’s observation of the child during all testing to make judgments on a child’s sensory processing skills and difficulties. A comprehensive assessment will give information on each of the child’s seven senses, to determine if the child “over” or “under” processes information coming into the brain from each sense.
2. Sensory Modulation/Self-Regulation Skills -
These are terms that are similar in their definitions, although “sensory modulation” is the term used to assess the brain stem’s “automatic” ability to maintain homeostasis or calmness throughout the day in order for children to learn, pay attention, have good behaviors and appear to be well-adjusted and well-coordinated. Children who fluctuate between being overly and under-sensitive to certain types of sensory stimulation (i.e.- touch, or any other sensation, like sound, or movement) within a matter of seconds, minutes or hours, often times have a “modulation” disorder, as the sensory systems cannot balance out on their own. The term “self-regulation” is used when a child can remain calm and appear to be well-adjusted in an ideal environment, but can’t maintain a good level of calmness when a high level of stimulation or stress is present around him or her. Kids with self-regulation difficulties can be perceived as being “fine” until they go to a party, eat too much sugar, or get provoked by their peers in some way. They are often easily excitable, frustrated or quick to anger in “specific” situations, whereas a child with a modulation disorder is experiencing these feelings and emotions more often throughout the day.
3. Motor Planning/Praxis Skills -
From a sensory perspective, motor planning, also known as praxis, is the ability to quickly and efficiently take in sensory information, process it and respond with a motor action. Motor planning difficulties impact a child’s ability to transition between tasks, accept changes in plans and routines and be more flexible in nature when plans or activities do not go as expected. Motor planning difficulties in the broader sense of the word are related to a lack of motor coordination. This is what you will most likely find if you do a search on the internet for this term, so try not to get confused, as this information may not apply to your child properly, if he or she mainly has sensory-related motor planning difficulties.
4. Attention -
Attention is the end result of having good sensory processing, self-regulation, postural endurance, eye muscle coordination/endurance and big muscle coordination skills. It’s also based on a child’s frustration and learning potential as he or she can become avoidant and therefore appear inattentive when tasks are overwhelming or hard. It’s very important to determine the cause of attention problems, because there are more than a handful of ways to make attention skills better, and the therapist needs to determine how your child is going to make life-long gains in this area. Food and chemical sensitivities, lack of sleep and high intelligence are other reasons why children may be inattentive!
5. Muscle Endurance/Tone -
Muscle endurance is based on how long the muscles can hold in a particular body position before they get tired, and muscle tone is based on the amount of messages the brain sends to the muscles in order to keep them activated over a period of time. Difficulty with the prone extension (superman) and supine flexion (cannonball) positions is strongly associated with difficulty achieving higher level postural control, balance and movement. These are positions where the child has to hold his back, neck, stomach and hip muscles up against gravity for the assessment. A lack of endurance or tone is often the reason why children have a hard time sitting still, paying attention over a period of time, or standing in one place without fidgeting or tiring. Respiratory weakness also effects a child’s ability to sustain good upright posture, attend quietly to tasks when seated at a table, and maintain self-regulation when excited or physically active. Children are also commonly known to “W” sit to assume a more stable position when they have deficits in their postural stability. This is not good for the ligments on the inner sides of their knees over time.
6. Reflexes -
Some therapists believe it’s important to test reflexes which are primitive motor movements that infants and young children have innately built into their bodies for survival and for very basic skills (i.e.- survival skills). It’s known that these reflexes need to disappear over time in order for children to acquire higher level coordination skills between the right and left sides of the body, as well as between the upper and lower halves of the body. Sensory therapists often look at the lack of reflex integration to mean “nervous system immaturity”. This is good general feedback for a therapist to consider when looking at the overall strengths and weaknesses of a child. The post rotary nystagmus (PRN) test assesses the vestibular-ocular reflex. that gives us information on how well the brain interprets movement at a reflexive level. The vestibular system is the sensory system that detects movement, which is responsible for activating greater balance, posture, attention, ocular skills, coordination and motor planning skills in the developing child. This test is used often by therapists who are more experienced in identifying and treating sensory processing disorders, who have a keen eye for knowing how to interpret the results of this assessment.
7. Bilateral Coordination -
This is an important area to assess as children with sensory processing difficulties quite often have a hard time integrating or coordinating the right and left sides of their body together. When a child is born, he or she has two brains (the right hemisphere or brain, and the left hemisphere or brain). Children learn to reach across their body for objects, and cross their legs and even eyes over to the other side of their body as they learn through play exploration. Each time this is done, a pathway is made in the corpus collosum which is the connector piece between the two sides of the brain. As these connections are made, skill is being established. This is why children don’t know how to crawl when they are first born, hold their own bottle with two hands right away, hold their own pacifier, or ride a bike. Children have to learn to integrate the right and left sides of their body in order to complete all coordination activities that require both sides of the body to do something at the same time. The body’s extremities can even be doing different tasks at the same time, such as: one hand holds the paper while the other hand cuts, draws or writes.
8. Gross Motor Coordination/Balance -
Gross motor skills are coordination skills that involve large muscle groups of the body for many activities such as balancing, skipping, hopping, being coordinated for P.E. classes, bike riding, engaging in after-school sports and completing many outdoor recreational activities. At a more basic level, gross motor coordination skills are required for a child to maintain his or her balance, crawl, and walk.
9. Eye-hand Coordination Skills -
This term is pretty self-explanatory as it relates to overall coordination skills that involve the eyes having to be lined up with the body to complete a task such as: throwing or catching a ball, batting a ball, and playing many sports or games that involve larger body movements (compared to an activity such as handwriting which is more often considered a visual motor activity).
10. Ocular Motor Skills -
Eye tracking difficulties can cause frustration or resistance toward any activities involving the eyes, including reading, writing, copying skills and/or sustained attention with the eyes over a period of time. Convergence difficulties (moving into a cross-eyed position) can affect depth perception skills for activities such as walking up and down stairs or escalators, riding a bike or focusing on table top tasks.
11. Fine Motor Coordination -
This is the child’s ability to use his or her fingers in a coordination manner for activities such as writing, drawing, coloring, stacking blocks, cutting, tying shoes, buttoning, snapping and zipping clothes (just to name a few!).
12. Visual Perceptual Skills -
Visual perceptual skills are based on the brain’s ability to make sense of what is seen with the eyes in order to complete puzzles, identify the difference between similar objects, pictures or designs, and to understand how to form letters using diagonal lines, curves and straight lines. This does not include how well a child coordinates his or her fingers to complete such tasks. It only considers what the eyes see and therefore what the child understands.
13. Pencil Grasp/Hand Strength & Dexterity -
A pencil grasp is often affected by a child’s hand strength and ability to maneuver the pencil in his or her hand efficiently (which is dexterity). A child should have a 3-finger tripod grasp for an efficient grasp and his or her hand and arm should not be moving, as the fingers should be doing the work on their own. This is expected of children when they are in their preschool/kindergarten years now. There are many fun activities on the internet that can help make hand-strengthening fun for children such as play-dough activities when done with all the play-dough tools, the use of hole punchers, cutting thick paper, using mini-staplers, tearing construction paper or multiple pieces of paper at the same time, coloring or scribbling on paper with tiny broken pieces of crayon (so only 3 fingers can fit, versus 4 or 5), etc….
I hope this is a helpful guide for you and I encourage you to ask your therapist questions anytime you don’t understand why he or she did a certain test, what it means, and how that information will help your child to perform better. The more you ask questions and become involved, the faster progress your child will make!
Best wishes for fast progress and much success!
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