Motor Impairments HCC /30/14. HCC 741: Assis+ve Technology and Accessibility

Transcription

1 Motor Impairments HCC /30/14 1

2 Reading Presentation Bryan and Alex 2

3 AT News / AT Hero Amir and Hee-ra 3

4 Importance of Computer Access Telemedicine Entertainment 4 HCC 741: Assis+ve Technology and Accessibility Communica+on Employment

5 How long does it take you to point to and double click a desktop icon? 5 seconds? 10 seconds? 30 seconds? 100 seconds? 5

6 How long does it take you to point to and double click a desktop icon? 5 seconds? 10 seconds? 30 seconds? 100 seconds? 6

7 Impact of a Pointing Problem Errors encountered while a1emp4ng double click: Slipped off target 5 4mes Sporadic movement A1empt to double- click desktop icon Dura4on: 1 minute 40 seconds 7

8 Assessment Can Improve Access Slipping: difficulty keeping mouse s+ll during click Performance must be assessed before assistance can be deployed Self assessment Observer assessment Clinical assessment 8

9 Vision: Automatic Assessment Develop software to automatically assess pointing problems during real world use Automatically configure assistance software based on current performance 9

10 ML Methodology: Learning Phase 10

11 ML Methodology: Runtime Phase 11

12 Scenario: Diverse Daily Abilities Annie s pointing abilities vary day to day Ideal adaptations Steady clicks Smooth cursor movement CRUMBS detects the days when Annie experiences pointing problems Only deploys cursor adaptations when she needs them 12

13 Scenario: Multiple Users CRUMBS distinguishes between Annie and her sister Jackie when they share a computer Only only deploy adaptations for Annie if she needs them, or automatically turn off Annie s adaptations for Jackie 13

14 Motor Impairments 14

15 Motor Impairments Mobility (locomotion, transfers, etc.); Postural function (standing, sitting, etc.); Action on the outside world (grasping, object handling, etc.); Communication (speech, gestural and facial expressions, writing, etc.); Feeding (chewing, swallowing, etc.); Perception of the outside world (head movements.); Reflex movements (e.g. quick withdrawal of the hand touching a burning hot object);. 15

16 Tremor v=z-nbscb735e 16

17 Categories of Tremor /07/ETvsPD pdf Identifying a tremor: When does the tremor happen? Speed / regularity of tremor Parts of body affected Common Types of Tremor Essential Tremor Dystonian Tremor Parkinsonian Tremor

18 Essential Tremor Timing Speed Active Tremor: usually impacts hands when in use, not when resting Low amplitude (Amplitude is more variable, ranging from barely perceptible tremor to a high amplitude tremor) Higher, faster frequency (4-12 hz) Parts of Body Affected Usually hands, head, voice 18

19 Parkisonian Tremor Timing Speed Resting Tremor: Occurs when hands are at rest High amplitude. Lower, slower frequency 4-5hz Parts of Body Affected Starts in hands, can impact legs, chin and other parts of body 19

20 Dystonic Tremor Timing Speed It can come and go irregular Parts of Body Affected More rarely impacts the hands, usually impacts the head 20

21 Assessing Tremor 21

22 Motor Ability Assessments 22

23 Motor Ability Assessments hip://cmpl.columbia.edu/spiral/spiral- table.pdf 23

24 Motor Ability Assessments Assessments and batteries Peg board test Interviews with individual and family Observations of ADL 24

25 Impact of Tremor disorders/tremor/detail_tremor.htm 25

26 Strategies to Mitigate Tremor Drugs Interfere with neurotransmitters Relax muscles and reduce shaking DBS Deep Brain Stimulation Electrodes are planted in the brain to rebalance movement v=ubh2lxtw0s0 Occupational Therapy Find alternative ways to do thing 26

27 Assistive Technology for Tremor Tremor Spoon archive/2013/09/a-spoon-for-people-withparkinsons/279984/ MagnaReady Clothes Hardware and software adaptations for computer access MDTAP visit! 27

28 Midterm Feedback document/d/ 1gTtWvpdXSdagWAkFfzMN2Oen 92e61dTboHjImHhn0us/edit 28

29 MidTerm Papers 15 citations (don t all have to be academic papers) Don t include other people s tables 29

30 Posters? Bring 5 copies, or 1 large one Design the poster to be 24x36 30

31 Spring 2015 Classes? 31