scholarly journals Motor planning in old age: Response time on a manipulative task

2009 ◽  
Vol 4 (1) ◽  
pp. 8-14
Author(s):  
Cássio de Miranda Meira Júnior ◽  
Flavio Henrique Bastos
Keyword(s):  
Information Processing ◽  
Reaction Time ◽  
Response Time ◽  
Old Age ◽  
Auditory Stimulus ◽  
Movement Time ◽  
Age Groups ◽  
Motor Planning ◽  
Motor Task ◽  
Transversal Study

In a transversal study with the use of a manipulative motor task, reaction and movement time of young (61 to 66 years old) and older elderly (67 to 81 years old) were measured. Subjects performed the task with the preferred hand in response to a visual and an auditory stimulus. Results showed that (a) reaction time values were the same for the both age groups; (b) movement time values were higher in older elderly; and (c) on both ages, the nature of the stimulus (visual or auditory) did not affect reaction and movement time. Results were discussed in the light of information processing background.

Reduction of Reaction Time Preceding Increased Complexity of Movement

1992 ◽  
Vol 74 (3) ◽  
pp. 819-824 ◽  
Author(s):  
Bruce Etnyre
Keyword(s):  
Reaction Time ◽  
Auditory Stimulus ◽  
Movement Time ◽  
Movement Response ◽  
Initiation Phase ◽  
Response Alternatives

In 1960 Henry and Rogers reported reaction time (RT) increased with increased response complexity while response alternatives were held constant. The purpose of the present study was to observe the effects of RT and movement time (MT) when subjects attempted to separate initiation of a task from the subsequent movement response, 24 subjects performed a ball-striking movement in response to an auditory stimulus. In the experimental condition the subjects were instructed to complete initiation as quickly as possible and then make a separate subsequent movement to strike a ball. It was concluded that subjects could not completely separate the initiation phase from the movement phase of the task but could significantly reduce the RT by focusing on the initiation portion of the task.

Information Processing as a Predictor of Offensive Ability in Baseball

1985 ◽  
Vol 60 (3) ◽  
pp. 775-781 ◽  
Author(s):  
Darhl Nielsen ◽  
Carl McGown
Keyword(s):  
Information Processing ◽  
Reaction Time ◽  
Movement Time ◽  
State University ◽  
Baseball Players ◽  
Brigham Young University ◽  
Colorado State University ◽  
University Of Utah ◽  
Speed Of Information Processing ◽  
Processing Ability

It has become very popular to view the human as a processor of information, with reaction time (RT) used in various ways to measure the speed of information processing. In many sports quick decisions are essential to success. It is tempting to study reaction time, infer information-processing ability, and use the results to make predictions about success. The purpose of this study was to determine the relationship between various RT and movement time (MT) measures [simple RT, simple MT, simple total response time (TRT), choice RT, choice MT, choice TRT, and information-processing ability as determined by the increase in RT from simple to eight-choice conditions] with batting average, slugging percentage, and total average. 40 varsity baseball players from Colorado State University, University of Wyoming, University of Utah, and Brigham Young University were given 24 practice attempts followed by 48 experimental attempts for both simple and choice RT and MT. These scores were then correlated with batting averages, slugging percentages, and total averages. This research demonstrated no relationship between the various measurements of reaction and movement times and offensive ability in baseball.

Choice Reaction Time and Speed of Information Processing in Old Age

1973 ◽  
Vol 36 (1) ◽  
pp. 321-322 ◽  
Author(s):  
Walter W. Surwillo
Keyword(s):  
Information Processing ◽  
Reaction Time ◽  
Old Age ◽  
Choice Reaction Time ◽  
Speed Of Information Processing

Simple and choice RT were investigated in 54 male Ss, aged 34 to 92 yr. Findings suggested that old age is accompanied by a slowing of information processing.

scholarly journals IMPROVEMENT OF REACTION TIME AFTER A WORKPLACE PHYSICAL ACTIVITY INTERVENTION

2019 ◽  
Vol 25 (6) ◽  
pp. 515-519
Author(s):  
Rafael Cunha Laux ◽  
Sara Teresinha Corazza
Keyword(s):  
Reaction Time ◽  
Physical Exercise ◽  
Response Time ◽  
Movement Time ◽  
Exercise Program ◽  
Test System ◽  
Control Group ◽  
Market Strategy ◽  
Before And After ◽  
Experimental Group

ABSTRACT Introduction Work activities have been occupying an increasing amount of time in the daily lives of the population, making individuals less physically active. A job market strategy is to invest in physical exercise programs in the actual workplace to improve the physical and cognitive aspects of these employees. Objective To verify the effects of a workplace physical exercise program on the simple and choice reaction times of public university employees. Methods Twenty-six physically inactive male and female subjects with a mean age of 29.62 ± 6.47 years underwent a program consisting of thirty-six sessions with physical exercises in the workplace, held three times a week over twelve weeks. Simple reaction time (SRT) and choice reaction time (CRT) were assessed before and after the intervention, using the Vienna Test System®, and the results were presented in: I) reaction time, II) movement time; and (III) response time. Descriptive and inferential statistical analyses were conducted using the statistical program SPSS® (version 21.0 for Windows), with a significance level of 5%. Results When observing the SRT and CRT variables before and after the experiment, we noticed an improvement in reaction time, movement time and response time in the experimental group but not in the control group. Conclusion The workplace physical exercise program was able to reduce the SRT and CRT of the experimental group. Level of evidence I; randomized clinical trial.

The effects of hypoxia on reaction time and movement time components of a perceptual—motor task

Ergonomics ◽  
1987 ◽  
Vol 30 (10) ◽  
pp. 1475-1485 ◽  
Author(s):  
BARRY FOWLER ◽  
MARLA TAYLOR ◽  
G. PORLIER
Keyword(s):  
Reaction Time ◽  
Movement Time ◽  
Motor Task

Elevation of Core Temperature and Mental Functioning

1996 ◽  
Vol 83 (1) ◽  
pp. 219-225 ◽  
Author(s):  
Antonios K. Travlos ◽  
Daniel Q. Marisi
Keyword(s):  
Information Processing ◽  
Reaction Time ◽  
Core Temperature ◽  
Choice Reaction Time ◽  
Movement Time ◽  
Random Number Generation ◽  
Mental Functioning ◽  
Experimental Conditions ◽  
Speed Of Information Processing ◽  
Time Movement

The purpose of this study was to investigate whether raised core temperature due to gradually increased amounts of exercise affects concentration and speed of information processing. 20 paid men, separated into groups of high (>56 ml/kg/min.) and low fitness (<46 ml/kg/min.) according to their maximal oxygen uptake (VO2max), participated in two experimental conditions (exercise and control). Concentration was measured by the Random Number Generation test of attentional deployment given every 10 min. of cycling at workloads calculated as 40, 50, 60, 70, and 80% of individual VO2max values and 10 min. after exercise cessation (exhaustion). Speed of information processing was estimated by an eight-choice reaction time/ movement time task given before and after exercise and 15 min. after exercise cessation. Core temperature was recorded at the same time individuals were administered the psychological tests. Analyses indicated that core temperatures increased significantly as a function of exercise intensity for high and low fitness groups. Correlations among the psychophysiological factors indicated that increases in core temperature were not associated with mental functioning. However, at certain core temperatures, core temperature and average choice reaction time/movement time were associated with participants' fitness.

The Correlation between Reaction Time and the Ponderal Index

1992 ◽  
Vol 75 (3) ◽  
pp. 843-846 ◽  
Author(s):  
Arthur R. Jensen ◽  
T. Edward Reed
Keyword(s):  
Information Processing ◽  
Reaction Time ◽  
Movement Time ◽  
Ponderal Index ◽  
Intraindividual Variability ◽  
Cognitive Tasks ◽  
College Males ◽  
Body Build ◽  
Elementary Cognitive Tasks

Reaction time (RT) and movement time (MT), and intraindividual variability in RT and MT, measured in elementary cognitive tasks at three levels of complexity of information processing, administered to 213 college males, show nonsignificant correlations with body build, specifically the ponderal index, hence not replicating the results of a study by Smith and Boyarsky (1943).

Performance on a Reciprocal Tapping Task with Variations in Intertapping Interval

1978 ◽  
Vol 46 (1) ◽  
pp. 251-261
Author(s):  
Shelton MacLeod ◽  
Wayne L. Martin
Keyword(s):  
Information Processing ◽  
Reaction Time ◽  
Movement Time ◽  
Fitts Law ◽  
Established Relationship ◽  
Index Of Difficulty

Fitts' law was investigated in a study of the effect of the index of difficulty (ID) and intertapping interval upon reaction time (RT) and movement time (MT) for a reciprocal tapping task. ID showed its well-established relationship with MT as described by Fitts' law: MT = aID + b. Improvement in the linearity of this relationship was, however, demonstrated by expressing MT in logarithmic units. While ID had an unsubstantial (though significant) effect on RT, increases in intertapping interval from zero to any level of discrete tapping led to significant increases in RT of about 135 msec. The results are interpreted as lending support to Fitts' thesis that RT and MT reflect independent phases of information processing.

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