The Effect of Part Proliferation on Assembly Line Operators' Decision Making Capabilities

1979 ◽  
Vol 23 (1) ◽  
pp. 169-173
Author(s):  
Susanne M. Gatchell
Keyword(s):  
Decision Making ◽  
Reaction Time ◽  
Choice Reaction Time ◽  
Assembly Line ◽  
Research Study ◽  
Reaction Times ◽  
Decision Time ◽  
Error Rates

In order to quantify the effects of part proliferation on assembly line operators' decision making capabilities, a research study was conducted. Using a Choice Reaction Time technique, 16 operators were tested to determine their reaction times and error rates when selecting parts. These operators were from four training levels (trained, relief, untrained/job and untrained/plant) and had to decide between 4, 7 or 10 major parts. Results show that operators with 10 parts made 46% more errors and needed 13% more decision time than operators with 4 parts. Furthermore, the relief and untrained/job operators made three times more errors than the trained operators. The untrained/plant operators had over five times more errors than the trained operators. These results indicate that all operators could make a selection when working with 10 major parts. However, their reaction times and error rates increased as the number or parts increased from 4 to 10.

A Choice-Reaction Time Task Utilizing Congruent and Incongruent Colour/Word Stimuli: Another Reaction to Stroop

1990 ◽  
Vol 71 (1) ◽  
pp. 115-119 ◽  
Author(s):  
Andrew S. Head ◽  
D. S. Tunstall Pedoe
Keyword(s):  
Decision Making ◽  
Reaction Time ◽  
Choice Reaction Time ◽  
Reaction Times ◽  
Reaction Time Task ◽  
Choice Reaction Time Task ◽  
Decision Making Process ◽  
Time Task ◽  
Significant Difference ◽  
Colour Word

A choice reaction time task was devised, using incongruent colour/word (Stroop-type) and congruent colour/word stimuli. A significant difference was found between reaction times to the two stimulus types with the Stroop-type stimuli eliciting longer reaction times. It is argued that traditional hypotheses about channel limitation can not explain this finding, the suggestion that the delay may lie in the decision-making process is put forward.

Stability of Choice Reaction Time and Synchronicity of Peak Emg Values during Bimanual Reactions

1992 ◽  
Vol 75 (1) ◽  
pp. 165-166 ◽  
Author(s):  
Bert De Brabander ◽  
Pol Gerits ◽  
Christophe Boone
Keyword(s):  
Reaction Time ◽  
Analysis Of Variance ◽  
Choice Reaction Time ◽  
Reaction Times ◽  
Repeated Measurements ◽  
Measurement Period

18 volunteers of our Faculty participated in two quasi-identical experiments six months apart. Repeated measurements of reaction time and synchronicity of peak forearm EMG values during bimanual reactions are analyzed by means of analysis of variance with subjects and measurement period as factors. Using Ebel's formula, test-retest reliabilities derived from the analysis vary between .82 and .94 for reaction times on different tasks and conditions and between .75 and .92 for synchronicity of peak EMG values.

Modelling Choice Decision Time

1980 ◽  
Vol 24 (1) ◽  
pp. 76-79
Author(s):  
Tarald O. Kvålseth
Keyword(s):  
Experimental Data ◽  
Reaction Time ◽  
Choice Reaction Time ◽  
Memory Search ◽  
Decision Time ◽  
Rate Of Change ◽  
Search Process ◽  
Exponential Law ◽  
Choice Decision

A power/exponential law of choice reaction time is proposed as an alternative to the classical Hick-Hyman's law and the Sternberg's law of memory search. A reanalysis of some experimental data, including those by Hick, Hyman and Sternberg, indicates that this alternative law provides at least as good fits to experimental data as do the Hick-Hyman's and Sternberg's laws. Some important implications of this finding are pointed out concerning the rate of change of information and the nature of the memory search process for the Sternberg's paradigm.

Study of Neuromotor Reaction Times under the Influence of Thyrotropin-Releasing Hormone

1987 ◽  
Vol 65 (2) ◽  
pp. 627-636 ◽  
Author(s):  
Dan Repperger ◽  
Tom Jennings ◽  
James Jacobson ◽  
Norman Michel ◽  
Chuck Goodyear ◽  
...  
Keyword(s):  
Reaction Time ◽  
Choice Reaction Time ◽  
Simple Reaction Time ◽  
Reaction Times ◽  
Thyrotropin Releasing Hormone ◽  
Double Blind Study ◽  
Experimental Conditions ◽  
Releasing Hormone ◽  
Simple Reaction ◽  
Decision Choice

Neuromotor reaction times (simple, choice, and decision) were measured when Thyrotropin-releasing hormone (TRH) was administered intravenously to nine healthy men in a double-blind study. Measurements were made of simple reaction time, choice reaction time, and decision time for each subject at various intervals over a 54-hr. period. Given the observed inherent interaction of the drug with the long time used (54 hr.), most analyses were conducted across separate time epochs. Injected subjects showed inhibition in the normal improvement of simple reaction time (which occurs with practice), and they reduced the time required to make a decision. Choice reaction time, however, remained unchanged across the drug-nondrug experimental conditions.

scholarly journals Learning to search. The importance of eye movements in the decrease of response times during a visual choice reaction time task

2016 ◽  
Vol 9 (5) ◽  
Author(s):  
Aleksandra Kroll ◽  
Monika Mak ◽  
Jerzy Samochowiec
Keyword(s):  
Eye Movements ◽  
Reaction Time ◽  
Choice Reaction Time ◽  
Visual Target ◽  
Response Times ◽  
Reaction Times ◽  
Reaction Time Task ◽  
Visual Tasks ◽  
Target Searching

Reaction times are often used as an indicator of the efficiency of the processes in thecentral nervous system. While extensive research has been conducted on the possibleresponse time correlates, the role of eye movements in visual tasks is yet unclear. Here wereport data to support the role of eye movements during visual choice reaction time training.Participant performance, reaction times, and total session duration improved. Eyemovementsshowed expected changes in saccade amplitude and resulted in improvementin visual target searching.

scholarly journals Atención y tiempo de reacción en practicantes de kárate Shotokan

2012 ◽  
Vol 6 (1) ◽  
pp. 141
Author(s):  
António VencesBrito ◽  
Carlos Silva ◽  
Luis Cid ◽  
Dora Ferreira ◽  
Ana Marques
Keyword(s):  
Reaction Time ◽  
Body Fat ◽  
Fat Mass ◽  
Female Athletes ◽  
Reaction Times ◽  
Decision Time ◽  
The Other ◽  
Body Fat Mass ◽  
Distributed Attention ◽  
Karate Athletes

The aim of this study is to analyze the attention capacity and the reaction time in Portuguese karate Shotokan athletes. Participated 96 Shotokan athletes from the Portuguese Karate Association. We physically characterized the sample (weight, height, body mass index, and body fat mass percentage) and evaluated Simple Reaction Time (TRS), Choice Reaction Time (TRE), Decision Time (TD) and the Distributed Attention (AD). Data was analyzed according to athletes’ group age (15 to 19 yr, 20 to 35 yr and more than 35 yr), level of graduation (9<sup>th</sup> to 4<sup>th</sup> kyu, 3<sup>rd</sup> to 1<sup>st</sup> kyu, DAN) and by gender (male and female). Male athletes present significant differences from female athletes in height, weight, years of practice and body fat mass. In relation to TRS all groups tend to a value near to 300 ms without significant differences among them, but the TRE and the TD are significantly higher in the Dan athletes and in the +35 yrs athletes than in the other groups. On the other hand the Dan and +35 yrs athletes tend to do less mistakes. Gender does not influence significantly the reaction time in the Shotokan karate athletes, but it seems that women tend to have smaller reaction times than men. Athletes with more years of practice and more graduation need more time to reply to the stimulus than the other athletes, but they tend to do fewer mistakes on their choices than other subjects. As for distributed attention, no significant differences were found in function of the athlete graduation, nor in function of gender. However, for distributed attention, we found statistical significant differences in function of the age, with the oldest athletes presenting lower levels of distributed attention. Our results seem to show that is necessary to do some modifications in the training process of Portuguese Shotokan karate athletes.

scholarly journals Executive control by fronto-parietal activity explains counterintuitive decision behavior in complex value-based decision-making

2021 ◽  
Author(s):  
Teppei Matsui ◽  
Yoshiki Hattori ◽  
Kaho Tsumura ◽  
Ryuta Aoki ◽  
Masaki Takeda ◽  
...  
Keyword(s):  
Decision Making ◽  
Reaction Time ◽  
Cognitive Control ◽  
Meta Analysis ◽  
Real Life ◽  
Reaction Times ◽  
Behavioral Effect ◽  
Control Mechanisms ◽  
Probabilistic Uncertainty ◽  
Task Conditions

In real life, humans make decisions by taking into account multiple independent factors, such as delay and probability. Cognitive psychology suggests that cognitive control mechanisms play a key role when facing such complex task conditions. However, in value-based decision-making, it still remains unclear to what extent cognitive control mechanisms become essential when the task condition is complex. In this study, we investigated decision-making behaviors and underlying neural mechanisms using a multifactor gambling task where participants simultaneously considered probability and delay. Decision-making behavior in the multifactor task was modulated by both probability and delay. The behavioral effect of probability was stronger than delay, consistent with previous studies. Furthermore, in a subset of conditions that recruited fronto-parietal activations, reaction times were paradoxically elongated despite lower probabilistic uncertainty. Notably, such a reaction time elongation did not occur in control tasks involving single factors. Meta-analysis of brain activations suggested an association between the paradoxical increase of reaction time and strategy switching. Together, these results suggest a novel aspect of complex value-based decision-makings that is strongly influenced by fronto-parietal cognitive control.

Temporal Characteristics of Interstimulus Interval in Serial Choice Reaction Time,

1973 ◽  
Vol 37 (3) ◽  
pp. 723-726
Author(s):  
Robert P. Fishburne ◽  
Wayne L. Waag
Keyword(s):  
Reaction Time ◽  
Choice Reaction Time ◽  
Interstimulus Interval ◽  
Reaction Times ◽  
Reaction Time Task ◽  
Choice Reaction Time Task ◽  
Interval Duration ◽  
Random Interval ◽  
Temporal Characteristics ◽  
The Mean

The present study investigated the effects of presentation schedule and interstimulus interval duration in a serial choice reaction-time task. 45 Ss were randomly assigned to fixed, patterned, and random schedules having durations of interstimulus intervals of 2, 3, and 4 sec. As the regularity of the presentation schedule decreased, reaction time increased. For fixed-interval presentation, reaction time increased as a function of duration while the quickest reaction times occurred at the mean interstimulus interval for random-interval presentation. Reaction times remained the same under the patterned-interval presentation schedule.

From Simple to Complex or Vice Versa: Sequence Effects on the Detection of Embedded Figures

Perception ◽  
1997 ◽  
Vol 26 (1_suppl) ◽  
pp. 247-247
Author(s):  
I Ludwig
Keyword(s):  
Reaction Time ◽  
Error Rate ◽  
Reaction Times ◽  
Random Order ◽  
Error Rates ◽  
Presentation Order ◽  
The Other ◽  
Embedded Figures ◽  
Sequence Effects ◽  
Mean Reaction Time

In a series of studies concerning part - whole perception we have investigated effects of perceptual learning, and of systematically varied presentation orders on the detection of embedded figures. In the present study the effects of increasing and decreasing complexity orders on detection performance are reported. Stimuli were 170 pairs of whole and part figures. Half of them were positive items, ie the searched part was contained in the (simultaneously presented) whole. The other half were negative items, ie the searched part was not contained in the whole. The difficulty of all figure pairs was determined from earlier data. On the basis of these difficulty parameters three presentation orders were created: (1) increasing difficulty (from simple to complex), (2) decreasing difficulty (from complex to simple), and (3) randomised order. Sixty subjects performed each of these tasks in three sessions separated by one week. Effects of practice and samples were balanced by permutating the order of the three tasks. The reaction times and error rates for all presentations were registered. The results showed marked differences between the three tasks: The lowest mean reaction time was obtained in the presentation order with increasing difficulty. Error rate, on the other hand, was lowest in the decreasing-difficulty presentation order. For the random-order presentation error rate and reaction time was in between the other orders. Furthermore, differences in benefit from practice were observed between the three orders of difficulty. Results are discussed with respect to the question of how efficient search strategies may be learned and whether one can learn to bend the rules of Gestalt organisation if required.

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