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The Tactile System

The Tactile System . Overview. Structure; What does it look like ?. The tactile system includes the nerves under the skin’s surface The information sent to the brain includes light touch, pain, pressure, and temperature

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The Tactile System

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  1. The Tactile System

  2. Overview Structure; What does it look like ? • The tactile system includes the nerves under the skin’s surface • The information sent to the brain includes light touch, pain, pressure, and temperature • This helps the person be aware of the environment and also for protective reasons • Two Subsystems: • Discriminatory: which lets us know where we’re being touched • Protective: lets us know if we need to protect ourselves

  3. Function: How does it work? • The body has multiple types of sensation • Ex) light touch, pain, pressure, temperature, and muscle and joint • All these are on three different pathways to the spinal cord • From there, the next target is the person's brain

  4. II. Childhood How it starts • When a baby is born, their reflexes are rigid • Ex) when a baby’s foot is tickled, this shows how the tactile system influences the whole body • Overtime, these generalized response should be integrated • Which basically means that overtime the whole body won’t respond to touch • Ex) some toys are interactive so it introduces touch to babies

  5. B. Development • The young child locates what kind of touch is experienced and where • Ex) light or deep • The tactile system develops more than when the person was a baby • Alerts when possible dangers are coming • Ex) Light touch stimulates hair and superficial skin cells and sends it the brain to interpret if there are any possible dangers

  6. III. Tactile Defensiveness What happens? • Tactile defensiveness skin is over sensitive • It’s wired to a part of the brain that alerts the system to danger • The person with this can’t tell the difference between a threat and a neutral touch • Ex) Is Mom going in to hug me or to hurt me? • The child doesn’t know if it needs to be on the defensive or not

  7. B. If left untreated • Carry on through their childhood and through adulthood with this • Can’t have a relationship, since sensitive to touch • Treatment can include consulting with a sensory integration therapist

  8. Quiz • Which subsystem lets us know where we’re being touched? • Protective • Defense • Discriminatory • Transitional 2.What are two examples of the types of sensations humans feel? • Pain and pressure • Love and hate • Threat and neutral • Hard and soft

  9. 3. What is an example of a reflex babies have when they are young? • Hungry so they cry • Tickles the foot so they jerk it away • Sleepy so they yawn • Happy so they laugh 4. What is Tactile Defensiveness? • A disorder where the child has over sensitive skin • A disorder where the child can’t feel touch • A disorder where the child can’t sleep • A disorder where the child feels everything 5. What are some ways to help Tactile Defensiveness? • There are no ways • Take medicine • It will eventually go away • Consult with a therapist

  10. 6. What two organs are involved in the tactile system? • Heart and brain • Heart and nerves • Brain and nerves • Brain and eyes 7. What is the first step of the tactile system? • Through the nerves • The eyes see what is going to be touched first • The brain thinks about it first • The nose smells it first

  11. 8. What is the last step of the tactile system? • The heart feels it • Returns to the nerves • The person touches it again • The brain interprets it 9. In the development stage, what does the tactile help with? • Enjoying the touch • Alerting for danger • Nothing • Telling differences between different things

  12. 10. What does it mean when “the generalized response should be integrated?” • The whole body won’t respond to the touch • The whole body will respond to the touch • Two feelings of touch will merge • There will be no touch

  13. Bibliography Works Cited • Gescheider, George A., John H. Wright, and Ronald T. Verrillo. Information-processing Channels in the Tactile Sensory System: A Psychophysical and Physiological Analysis. New York: Psychology, 2009. Print. • "Pediatric Occupational Therapy Tips." : The Tactile, Vestibular, and Proprioceptive Systems. N.p., n.d. Web. 7 May 2013. • "The Tactile System and Sensory Processing Disorder." Sensory Processing Disorder Made Simple. N.p., n.d. Web. 5 May 2013. • "TREATING TACTILE DEFENSIVENESS IN THE AQUATIC ENVIRONMENT." TREATING TACTILE DEFENSIVENESS IN THE AQUATIC ENVIRONMENT. N.p., n.d. Web. 7 May 2013.

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