Touch

차례

  1. 능동촉각/수동촉각
  2. Cutaneous Mechanoreceptors
    1. Rapid / Slow Adaptation
    2. Receptor Fields
    3. Two Point Discrimination
  3. 중추촉각계
    1. Primary Somatosensory Cortex
    2. Secondary Somatosensory Cortex
  4. 체감각영역의 손상

능동촉각/수동촉각

Neurological tests for passive touch

Cutaneous Mechanoreceptors

https://upload.wikimedia.org/wikipedia/commons/thumb/b/be/Blausen_0809_Skin_TactileReceptors.png/768px-Blausen_0809_Skin_TactileReceptors.png

Rapid / Slow Adaptation

http://humanphysiology.academy/Neurosciences 2015/Images/2/Adaptation Sensory acbrown.JPG

좁은 수용야

넓은 수용야

기능

Rapidly Adapting

Meissner

Pacini

Motion, Vibration

Slowly Adapting

Merkel

Ruffini

Pressure

Receptor Fields

https://s3-us-west-2.amazonaws.com/courses-images-archive-read-only/wp-content/uploads/sites/167/2014/11/20063209/Nerv_12.jpg http://neuroclusterbrain.com/img/neuron/on_off_receptive_fields_005.jpg

Two Point Discrimination

https://ssl.cdn.ncmedical.com/items/fullsize/2009_05_13_14_18_43__14_NC12776_LG.jpg

https://www.researchgate.net/profile/Armando_Bauleo/publication/262197325/figure/fig5/AS:202812593053710@1425365698719/Comparison-of-2-point-discrimination-2PD-for-touch-as-measured-by-Weinstein-2-by.png

중추촉각계

Primary Somatosensory Cortex

https://youtu.be/8hDoO0wcq8Q

width=700

Sensory Homunculus

https://upload.wikimedia.org/wikipedia/commons/thumb/c/c4/1421_Sensory_Homunculus.jpg/1028px-1421_Sensory_Homunculus.jpg https://images-na.ssl-images-amazon.com/images/I/41dSfJZWMzL.jpg

Secondary Somatosensory Cortex

https://www.getbodysmart.com/wp-content/uploads/2017/09/Secondary-Other-Somatosenory-Cortex-Areas-695x550.png

체감각영역의 손상

손상 부위에 따라 다른 양상이 나타남 (예시)

손상부위

단순 촉각테스트

복잡 촉각 업무

Anterior Parietal Cortex

어려움

어려움

Posterier Parietal Cortex

가능함

어려움
(tactile apraxia or useless hand syndrome)

Class/Neuroscience/Touch (2018-04-28 10:53:17에 gehoon가(이) 마지막으로 수정)