scholarly journals Differences in Perceptual Latency Estimated from Judgments of Temporal Order, Simultaneity and Duration are Inconsistent

i-Perception ◽  
10.1068/i0675 ◽  
2014 ◽  
Vol 5 (6) ◽  
pp. 559-571 ◽  
Author(s):  
Daniel Linares ◽  
Alex O. Holcombe
Keyword(s):  
Temporal Order ◽  
Perceptual Latency

Intermodal Perception of Temporal Order and Motor Skills: Effects of Age

1968 ◽  
Vol 26 (3) ◽  
pp. 987-1000 ◽  
Author(s):  
Albert J. Dinnerstein ◽  
Phyllis Zlotogura
Keyword(s):  
Motor Skills ◽  
Temporal Order ◽  
Short Term Memory ◽  
Motor Task ◽  
Reaction Times ◽  
Short Term ◽  
Tactile Stimuli ◽  
Serial Reaction ◽  
Intermodal Perception ◽  
Perceptual Latency

Employing visual, auditory, and tactile stimuli, intermodal differences in perceptual latency were inferred by means of perception of temporal order (PTO) and by varieties of serial reaction times (RT) to the same stimuli. Skill at reading, peg board, tapping, and tracking was also determined for the same Ss. Mean intermodal differences in latency inferred from PTO were significantly different from those obtained from mean RTs. A correlation matrix showed that individual differences in visual, auditory and tactile latencies inferred from PTO were relatively independent of latencies inferred from RT. Consonant with previous studies, PTO scores correlated with reading rate and also with peg board speed. Taking age of Ss into account, the latter correlations were seen to be due exclusively to the presence of older Ss, who did show a correlation between PTO and RT. It was hypothesized that aged Ss show a decrease in perceptual “channel capacity” and a resulting overloading of short-term memory when faced with a complex perceptual and motor task.

Multiple Visual Latency

1998 ◽  
Vol 9 (2) ◽  
pp. 135-138 ◽  
Author(s):  
Jüri Allik ◽  
Kairi Kreegipuu
Keyword(s):  
Visual Stimulus ◽  
Temporal Order ◽  
Visual Awareness ◽  
Common Belief ◽  
Evoked Responses ◽  
Visual Events ◽  
Visual Latency ◽  
Direction Of Movement ◽  
Perceptual Latency ◽  
Visual Delay

It has long been known that a dark visual stimulus is seen later than a bright one, with a delay up to several 10s of milliseconds. Systematic studies of various phenomena demonstrating this delay have revealed that the perceptual latency decreases monotonically as the stimulus intensity increases. Because latencies measured by psychological methods and cortical evoked responses are very similar to electroretinogram latencies, it has become a common belief that there is little in the intensity-dependent latency function that cannot be explained by retinal processes. In this study, we report evidence that there is no one absolute visual delay common to the whole visual system, but rather that the delay varies considerably in different perceptual subsystems. The relative visual latency was found to be considerably shorter in the task involving detecting the direction of movement than in other perceptual tasks that presume visual awareness of the beginning or temporal order of visual events.

scholarly journals Larger Stimuli Require Longer Processing Time for Perception

Perception ◽  
2017 ◽  
Vol 46 (5) ◽  
pp. 605-623 ◽  
Author(s):  
Ryota Kanai ◽  
Edwin S. Dalmaijer ◽  
Maxine T. Sherman ◽  
Genji Kawakita ◽  
Chris L. E. Paffen
Keyword(s):  
Temporal Order ◽  
Reaction Times ◽  
Stimulus Size ◽  
Reference Stimulus ◽  
Specific Response ◽  
Temporal Order Judgement ◽  
Perceptual Latency ◽  
Response Biases ◽  
Simple Manipulation ◽  
Luminance Intensity

The time it takes for a stimulus to reach awareness is often assessed by measuring reaction times (RTs) or by a temporal order judgement (TOJ) task in which perceived timing is compared against a reference stimulus. Dissociations of RT and TOJ have been reported earlier in which increases in stimulus intensity such as luminance intensity results in a decrease of RT, whereas perceived perceptual latency in a TOJ task is affected to a lesser degree. Here, we report that a simple manipulation of stimulus size has stronger effects on perceptual latency measured by TOJ than on motor latency measured by RT tasks. When participants were asked to respond to the appearance of a simple stimulus such as a luminance blob, the perceptual latency measured against a standard reference stimulus was up to 40 ms longer for a larger stimulus. In other words, the smaller stimulus was perceived to occur earlier than the larger one. RT on the other hand was hardly affected by size. The TOJ results were further replicated in a simultaneity judgement task, suggesting that the effects of size are not due to TOJ-specific response biases but more likely reflect an effect on perceived timing.

Simple Reaction Time and Perception of Temporal Order: Dissociations and Hypotheses

1996 ◽  
Vol 82 (3) ◽  
pp. 707-730 ◽  
Author(s):  
Piotr Jaśkowski
Keyword(s):  
Reaction Time ◽  
Simple Reaction Time ◽  
Temporal Order ◽  
Motor Reaction ◽  
Motor Reaction Time ◽  
Simple Reaction ◽  
Simple Motor ◽  
Perceptual Latency

Simple motor reaction time and judgment of temporal order are commonly recognized as two methods for estimation of perceptual latency. Unfortunately, the results obtained by the methods under the same conditions do not agree. We review hypotheses attempting to explain the disagreement. Although some of these seem to be promising, no one at present could be fully accepted.

Multiple Visual Latency

Perception ◽  
1997 ◽  
Vol 26 (1_suppl) ◽  
pp. 69-69 ◽  
Author(s):  
J Allik ◽  
K Kreegipuu
Keyword(s):  
Discrimination Task ◽  
Temporal Order ◽  
Visual Awareness ◽  
Common Belief ◽  
Visual Events ◽  
Visual Latency ◽  
Relative Delay ◽  
Perceptual Latency ◽  
Visual Delay ◽  
Movement Discrimination

It has long been known that the time taken to detect a dim visual stimulus is longer than that to detect a bright one, with a relative delay of up to several tens of milliseconds. Systematic studies of various phenomena demonstrating this delay have revealed that the perceptual latency decreases monotonically as the stimulus intensity increases. Because latencies measured by psychological methods and cortical evoked responses are very similar to electroretinogram latencies, it has become a common belief that there is little in the intensity-dependent latency function that cannot be explained by retinal processes. We report evidence that there is not one absolute visual delay common to the whole visual system, but that the delay varies considerably in different perceptual subsystems. The relative visual latency was found to be considerably shorter in a movement-discrimination task than in other perceptual tasks which presume visual awareness of the onset of visual events, or of their temporal order.

Exploring the Boundaries of the Number–Temporal Order Association

2015 ◽  
Vol 62 (3) ◽  
pp. 198-205 ◽  
Author(s):  
Dana Ganor-Stern
Keyword(s):  
Embodied Cognition ◽  
Mental Representation ◽  
Temporal Order ◽  
Past Research ◽  
Numerical Comparison ◽  
Negative Number ◽  
Comparison Task ◽  
Negative Numbers ◽  
The Past

Past research has shown that numbers are associated with order in time such that performance in a numerical comparison task is enhanced when number pairs appear in ascending order, when the larger number follows the smaller one. This was found in the past for the integers 1–9 ( Ben-Meir, Ganor-Stern, & Tzelgov, 2013 ; Müller & Schwarz, 2008 ). In the present study we explored whether the advantage for processing numbers in ascending order exists also for fractions and negative numbers. The results demonstrate this advantage for fraction pairs and for integer-fraction pairs. However, the opposite advantage for descending order was found for negative numbers and for positive-negative number pairs. These findings are interpreted in the context of embodied cognition approaches and current theories on the mental representation of fractions and negative numbers.

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