scholarly journals Some characteristics of selective attention in visual perception determined by vocal reaction time

1972 ◽  
Vol 11 (2) ◽  
pp. 169-171 ◽  
Author(s):  
Charles W. Eriksen ◽  
James E. Hoffman
1954 ◽  
Vol 100 (419) ◽  
pp. 462-477 ◽  
Author(s):  
K. R. L. Hall ◽  
E. Stride

A number of studies on reaction time (R.T.) latency to visual and auditory stimuli in psychotic patients has been reported since the first investigations on the personal equation were carried out. The general trends from the work up to 1943 are well summarized by Hunt (1944), while Granger's (1953) review of “Personality and visual perception” contains a summary of the studies on R.T. to visual stimuli.


1978 ◽  
Vol 4 (5) ◽  
pp. 377-387 ◽  
Author(s):  
Paul E. Panek ◽  
Gerald V. Barrett ◽  
Harvey L. Sterns ◽  
Ralph A. Alexander

1977 ◽  
Vol 44 (3) ◽  
pp. 889-890
Author(s):  
Richard K. Stratton

Consistently higher correlations (.74 to .89) were noted between hand and foot RT of 7 subjects assigned to a contralateral group than for another 7 assigned to an ipsilateral group ( rs = .80 to .51). Subjects button pressed to onset of a light.


1992 ◽  
Vol 35 (5) ◽  
pp. 971-982 ◽  
Author(s):  
David H. McFarland ◽  
Anne Smith

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.


Author(s):  
P. Manivannan ◽  
Sara Czaja ◽  
Colin Drury ◽  
Chi Ming Ip

Visual search is an important component of many real world tasks such as industrial inspection and driving. Several studies have shown that age has an impact on visual search performance. In general older people demonstrate poorer performance on such tasks as compared to younger people. However, there is controversy regarding the source of the age-performance effect. The objective of this study was to examine the relationship between component abilities and visual search performance, in order to identify the locus of age-related performance differences. Six abilities including reaction time, working memory, selective attention and spatial localization were identified as important components of visual search performance. Thirty-two subjects ranging in age from 18 - 84 years, categorized in three different age groups (young, middle, and older) participated in the study. Their component abilities were measured and they performed a visual search task. The visual search task varied in complexity in terms of type of targets detected. Significant relationships were found between some of the component skills and search performance. Significant age effects were also observed. A model was developed using hierarchical multiple linear regression to explain the variance in search performance. Results indicated that reaction time, selective attention, and age were important predictors of search performance with reaction time and selective attention accounting for most of the variance.


1973 ◽  
Vol 2 (2) ◽  
pp. 85-89
Author(s):  
H. Birk Nielsen ◽  
L. von der Lieth

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