Presentation is loading. Please wait.

Presentation is loading. Please wait.

... Afferent paresis: Difficulty executing smooth, coordinated, fine movements as a result of loss of afferent (somatosensory) feedback from the.

Similar presentations


Presentation on theme: "... Afferent paresis: Difficulty executing smooth, coordinated, fine movements as a result of loss of afferent (somatosensory) feedback from the."— Presentation transcript:

1 ..

2

3

4

5

6 Afferent paresis: Difficulty executing smooth, coordinated, fine movements as a result of loss of afferent (somatosensory) feedback from the muscles engaged in the motor activity. Paresis is a condition typified by a weakness of voluntary movement, or partial loss of voluntary movement or by impaired movement.

7 Testing stereognosis http://www.youtube.com/watch?v=6fyiGUAg2 GY

8 Testing simultaneous extinction http://neuroexam.med.utoronto.ca/sensory_7. htm http://neuroexam.med.utoronto.ca/sensory_7. htm

9 A tactile analogue of blindsight

10 The man who lost his body (lack of proprioception) http://www.youtube.com/watch?v=FKxyJfE831Q Anosognosia (nosos, "disease"). https://www.youtube.com/watch?v=uj6ozlzA45ohttps://www.youtube.com/watch?v=uj6ozlzA45o Pain asymbolia, also called pain dissociation, is a condition in which pain is experienced without unpleasantness. https://www.youtube.com/watch?v=7OLmnNdOtDEhttps://www.youtube.com/watch?v=7OLmnNdOtDE Update: The Little Girl Who Couldn't Feel Pain | Where Are They Now? | Oprah Winfrey Network https://www.youtube.com/watch?v=bRaCFUtpxFUhttps://www.youtube.com/watch?v=bRaCFUtpxFU

11 Balint’s syndrome http://www.youtube.com/watch?v=TVZmLtrOvTchttp://www.youtube.com/watch?v=TVZmLtrOvTc Balint’s syndrome patient http://www.youtube.com/watch?v=4odhSq46vtUhttp://www.youtube.com/watch?v=4odhSq46vtU 4. Ocular apraxia; the absence of, or a defect in, the control of voluntary purposeful eye movement.

12 Modified NIHSS – Neglect Scoring http://www.youtube.com/watch?v=UKAOP85B14E http://www.youtube.com/watch?v=UKAOP85B14E Neglect patient http://www.youtube.com/watch?v=ADchGO-0kGo Why happening? 1)Sensation and perception (amorphosynthesis) 2)Attention and orientation (arousal to stimuli) Why more common in right hemisphere damage? Not compensated by left hemisphere, whereas right visual field is supported by both hemisphere?

13

14

15 Gerstmann Syndrome – patient https://www.youtube.com/watch?v=GLJdcmSIoNQ

16 Alexia and Dyslexia; the writer who could not read https://www.youtube.com/watch?v=KERQv9FIxkw

17 Apraxia (from Greek praxis, an act, work, or deed) is the inability to execute learned purposeful movements, despite having the desire and the physical capacity to perform the movements. Greek

18 Apraxia - Patients Simple purposeful movements: https://www.youtube.com/watch?v=vTFdNk7JIoohttps://www.youtube.com/watch?v=vTFdNk7JIoo Dressing apraxia: https://www.youtube.com/watch?v=gewP1T7GYcc Verbal apraxia: https://www.youtube.com/watch?v=XNB0ihI2srQhttps://www.youtube.com/watch?v=XNB0ihI2srQ

19

20

21 Topographical Disorientation, also known as Topographical agnosia andTopographagnosia, is the inability to orient oneself in one's surroundings

22

23 Cross-modal matching A scaling method used in psychophysics in which an observer matches the apparent intensities of stimuli across two sensory modalities, as when an observer adjusts the brightness of a light to indicate the loudness of a variable stimulus sound. Some authorities consider magnitude estimation and magnitude production to be forms of cross-modal matching in which one modality is the observer's perception of the number system. Also called cross- modality matching.

24


Download ppt "... Afferent paresis: Difficulty executing smooth, coordinated, fine movements as a result of loss of afferent (somatosensory) feedback from the."

Similar presentations


Ads by Google