A man with multiple disabilities using a head-turning response to reduce the effects of his drooling

2008 ◽  
Vol 23 (4) ◽  
pp. 285-290 ◽  
Author(s):  
Giulio E. Lancioni ◽  
Nirbhay N. Singh ◽  
Mark F. O'Reilly ◽  
Jeff Sigafoos ◽  
Doretta Oliva ◽  
...  
Keyword(s):  
Multiple Disabilities ◽  
Head Turning ◽  
Turning Response

A subpopulation of cerebral B cluster neurones of Aplysia californica is involved in defensive head withdrawal but not appetitive head movements

1989 ◽  
Vol 147 (1) ◽  
pp. 1-20
Author(s):  
T. Teyke ◽  
K. R. Weiss ◽  
I. Kupfermann
Keyword(s):  
Aplysia Californica ◽  
Head Movements ◽  
Experimental Conditions ◽  
Head Turning ◽  
Turning Response ◽  
Motor Neurones ◽  
Body Wall Muscles ◽  
Intracellular Stimulation ◽  
Withdrawal Response ◽  
Stimulation Of

The cerebral B cluster neurones of Aplysia californica were studied under experimental conditions designed to evoke head movements in a selective fashion: either to approach an appetitive stimulus, or to withdraw from an aversive one. Intracellular recordings indicated the presence of two types of B cluster neurones: Bn cells that had fast (narrow) spikes, and Bb cells that had slow (broad) spikes. Tactile stimulation of the tentacles, rhinophores and lips excited Bn neurones, but inhibited Bb neurones. Intracellular stimulation of Bn cells evoked contractions of body wall muscles. No contractions were observed when Bb cells were fired, indicating that it is unlikely that the Bb neurones are motor neurones. Several lines of evidence indicated that the Bn type neurones are involved in withdrawal responses but not in appetitive head turning. (1) Elimination of the descending axons of the Bn cells by lesioning the cerebropleural connectives (C-Pl connectives) did not affect the head-turning response. This lesion significantly altered the head-withdrawal response by selectively eliminating an initial fast component of the withdrawal movement. (2) In chronic recordings from the C-Pl connective, unit activity was obtained which was correlated with the presentation of an appetitive stimulus rather than with evoked or spontaneous turning movements. A substantial increase in activity also occurred during head withdrawal of the animal. On the basis of these data, we postulate that separate populations of motor neurones are responsible for the aversive withdrawal of the head, and for the directed turning response towards a stimulus.

Maternal Holding Preferences: A Consequence of Newborn Head-Turning Response

1979 ◽  
Vol 50 (1) ◽  
pp. 280 ◽  
Author(s):  
Harvey J. Ginsburg ◽  
Sheila Fling ◽  
Marti L. Hope ◽  
Dana Musgrove ◽  
Cherilyn Andrews
Keyword(s):  
Head Turning ◽  
Turning Response

Comparative Effects of High-Tech Visual Scene Displays and Low-Tech Isolated Picture Symbols on Engagement From Students With Multiple Disabilities

2019 ◽  
Vol 50 (4) ◽  
pp. 693-702 ◽  
Author(s):  
Christine Holyfield ◽  
Sydney Brooks ◽  
Allison Schluterman
Keyword(s):  
Language Learning ◽  
Augmentative And Alternative Communication ◽  
Visual Analysis ◽  
Multiple Disabilities ◽  
Visual Scene ◽  
Future Research ◽  
High Tech ◽  
Single Subject ◽  
Wide Range ◽  
The Difference

Purpose Augmentative and alternative communication (AAC) is an intervention approach that can promote communication and language in children with multiple disabilities who are beginning communicators. While a wide range of AAC technologies are available, little is known about the comparative effects of specific technology options. Given that engagement can be low for beginning communicators with multiple disabilities, the current study provides initial information about the comparative effects of 2 AAC technology options—high-tech visual scene displays (VSDs) and low-tech isolated picture symbols—on engagement. Method Three elementary-age beginning communicators with multiple disabilities participated. The study used a single-subject, alternating treatment design with each technology serving as a condition. Participants interacted with their school speech-language pathologists using each of the 2 technologies across 5 sessions in a block randomized order. Results According to visual analysis and nonoverlap of all pairs calculations, all 3 participants demonstrated more engagement with the high-tech VSDs than the low-tech isolated picture symbols as measured by their seconds of gaze toward each technology option. Despite the difference in engagement observed, there was no clear difference across the 2 conditions in engagement toward the communication partner or use of the AAC. Conclusions Clinicians can consider measuring engagement when evaluating AAC technology options for children with multiple disabilities and should consider evaluating high-tech VSDs as 1 technology option for them. Future research must explore the extent to which differences in engagement to particular AAC technologies result in differences in communication and language learning over time as might be expected.

Passive resistance of hamstring muscles in children with severe multiple disabilities?

2000 ◽  
Vol 42 (8) ◽  
pp. 541-544 ◽  
Author(s):  
S Holt ◽  
S Baagøe ◽  
F Lillelund ◽  
S P Magnusson
Keyword(s):  
Multiple Disabilities ◽  
Passive Resistance ◽  
Hamstring Muscles
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