Response complexity effects on vocal reaction time in normal aged speakers.

1996 ◽  
Vol 99 (4) ◽  
pp. 2548-2574
Author(s):  
Michael S. Fozo ◽  
Ben C. Watson
Keyword(s):  
Reaction Time ◽  
Vocal Reaction Time

Effects of Vocal Task and Respiratory Phase on Prephonatory Chest Wall Movements

1992 ◽  
Vol 35 (5) ◽  
pp. 971-982 ◽  
Author(s):  
David H. McFarland ◽  
Anne Smith
Keyword(s):  
Reaction Time ◽  
Chest Wall ◽  
Breathing Cycle ◽  
Quiet Breathing ◽  
Respiratory Volume ◽  
Rib Cage ◽  
Reaction Time Paradigm ◽  
Vocal Responses ◽  
Respiratory Phase ◽  
Vocal Reaction Time

A vocal reaction time paradigm was used to explore prephonatory respiratory kinematics. Movements of the rib cage and abdomen were recorded prior to production of utterances differing in length and intensity, and vocal responses were elicited in different phases and volumes of the quiet breathing cycle. A velocity threshold was used to distinguish prephonatory adjustments from the cyclical movements of the chest wall that are characteristic of quiet breathing. The results suggest that a variety of prephonatory kinematic events can occur prior to initiation of vocalization in response to a stimulus. Further, prephonatory movements appear to be adaptive in that they are influenced by the length of the utterance to be spoken and the respiratory volume at the time of voice initiation.

A Pilot Study of Auditory Versus Audiovisual Vocal Reaction Time Responses

1973 ◽  
Vol 2 (2) ◽  
pp. 85-89
Author(s):  
H. Birk Nielsen ◽  
L. von der Lieth
Keyword(s):  
Reaction Time ◽  
Pilot Study ◽  
Vocal Reaction Time

Physiologic Stages of Vocal Reaction Time

1984 ◽  
Vol 27 (2) ◽  
pp. 173-178 ◽  
Author(s):  
Thomas Shipp ◽  
Krzysztof Izdebski ◽  
Philip Morrissey
Keyword(s):  
Reaction Time ◽  
Pressure Rise ◽  
Normal Subjects ◽  
Air Pressure ◽  
Central Processing ◽  
Posterior Cricoarytenoid Muscle ◽  
Posterior Cricoarytenoid ◽  
Intrinsic Laryngeal Muscles ◽  
Male Subjects ◽  
Vocal Reaction Time

A simple vocal reaction time (RT) task was performed by 10 male subjects while measures from intrinsic laryngeal muscles and subglottal air pressure were obtained simultaneously. Based only on each subject's fastest time among 15 trials, RT values were similar to the latencies previously observed in normal subjects. The mean of the subjects' fastest trials was 185 ms (range: 160–250ms). Shortest latency values obtained for each measure were interarytenoid muscle, 50 ms; thyroarytenoid muscle, 60 ms; posterior cricoarytenoid muscle, 80 ms; subglottal air pressure rise, 125 ms. From these data estimates were made of 115 ms for the shortest respiratory system latency and 25 ms for the minimal central processing time. These data suggest that fastest vocal RTs are determined principally by the temporal constraints involved in activating pulmonary rather than laryngeal structures.

Task complexity effect on vocal reaction time in aged speakers

1998 ◽  
Vol 12 (4) ◽  
pp. 404-414 ◽  
Author(s):  
Michael S. Fozo ◽  
Ben C. Watson
Keyword(s):  
Reaction Time ◽  
Task Complexity ◽  
Vocal Reaction Time
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