Effects of wavelength and retinal locus on the reaction time to onset and offset stimulation.

1968 ◽  
Vol 78 (4, Pt.1) ◽  
pp. 699-701 ◽  
Author(s):  
Neil R. Bartlett ◽  
Thomas G. Sticht ◽  
Victor P. Pease
Keyword(s):  
Reaction Time ◽  
Retinal Locus ◽  
Time To Onset

Reaction Time as a Function of Peripheral Retinal Locus around Fovea: Effect of Stimulus Size

1976 ◽  
Vol 43 (2) ◽  
pp. 603-606 ◽  
Author(s):  
Naoyuki Osaka
Keyword(s):  
Reaction Time ◽  
Reaction Times ◽  
Stimulus Size ◽  
Target Size ◽  
Retinal Locus ◽  
Visual Reaction

Using targets of four sizes between 18' and 116' at a fixed luminance of 5.8 cd/m2, human visual reaction times (RT) were measured on a circle at 30° eccentric to the fovea. A foveal and 12 peripheral retinal loci were explored, covering the range between 0° and 330° in steps of 30° units on a circle about the fovea. RT decreased significantly by the stimulation to the quadrant retinal loci between nasal and superior side. RT decreased as a function of increasing target size and the amount of decrement was relatively larger in the periphery than in the fovea.

Reaction Time to Onset and Termination of Lights and Sounds

1968 ◽  
Vol 27 (3_suppl) ◽  
pp. 1023-1029 ◽  
Author(s):  
Sanford Goldstone
Keyword(s):  
Reaction Time ◽  
Rapid Rise ◽  
Subjective Intensity ◽  
Time To Onset ◽  
Visual Difference

An experiment was conducted which measured the RT of 40 adult Ss to the onset and termination of rapid rise and decay lights and sounds which had been equated for subjective intensity. Onset RT was faster than termination for both sense modes, and auditory RT was faster than visual for both onset and termination. The results are compared with previous intersensory and onset-termination RT research and with another auditory-visual difference in the judgment of duration.

Effect of a Border on Reaction Time to Onset and Offset Stimulation in the Fovea

1970 ◽  
Vol 31 (1) ◽  
pp. 235-238 ◽  
Author(s):  
Arlen Versteeg
Keyword(s):  
Reaction Time ◽  
Visual Field ◽  
Reaction Times ◽  
Border Effect ◽  
White Side ◽  
Time To Onset ◽  
Black Side

Reaction times were obtained to the onset and offset of flash stimuli located in various positions in a visual field divided into two contiguous regions of white and black. With presentation of the flash stimuli in the fovea, there were no significant differences in the character of functional onset and offset RTs or in the character of the function relating RT to distance from the border. There was a border effect operative for both functions; a decrease in both onset and offset RTs appeared as the border was approached from the white side and a slight increase in both onset and offset RTs when the border was approached from the black side.

REACTION TIME AND INTELLIGENCE

1991 ◽  
Vol 1 (1) ◽  
pp. 211-221 ◽  
Author(s):  
Edward Neçka
Keyword(s):  
Reaction Time

Modeling Within-Person Variance in Reaction Time Data of Older Adults

GeroPsych ◽  
2011 ◽  
Vol 24 (4) ◽  
pp. 169-176 ◽  
Author(s):  
Philippe Rast ◽  
Daniel Zimprich
Keyword(s):  
Reaction Time ◽  
Cognitive Aging ◽  
Reaction Times ◽  
Reaction Time Task ◽  
Reaction Time Data ◽  
Scale Model ◽  
Time Data ◽  
Time Task ◽  
The Mean ◽  
Second Wave

In order to model within-person (WP) variance in a reaction time task, we applied a mixed location scale model using 335 participants from the second wave of the Zurich Longitudinal Study on Cognitive Aging. The age of the respondents and the performance in another reaction time task were used to explain individual differences in the WP variance. To account for larger variances due to slower reaction times, we also used the average of the predicted individual reaction time (RT) as a predictor for the WP variability. Here, the WP variability was a function of the mean. At the same time, older participants were more variable and those with better performance in another RT task were more consistent in their responses.

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