Effects of degree of rotation 012687 University of Nottingham Malaysia Campus Abstract The following study does a replication of Cooper and Shepard’s (1973) study on mental rotation using rotated and normal stimulus. The study investigated the effects of degree of rotation of the stimulus on the time taken (RT) for participants to distinguish between inversed stimuli and non-inversed stimuli. In the following study‚ we used 2 normal stimuli and 2 inversed of the normal stimuli‚ and applied
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have different shapes‚ and the degree of rotation. The control conditions are the multiple trials and the selection of only correct responses. The hypothesis is that if the reaction time is affected by the degree of rotation of the images‚ subjects perform the task by mental rotation of the drawings because it takes time to rotate the mental images just like real images. The result shows that the reaction time is indeed affected by the degree of rotation; therefore‚ it demonstrates the hypothesis
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familiarity or experience plays a prominent role in the recognition of the 3D blocks. It seems that in the rotation of these images familiarity plays a very important role‚ since it can be assumed that if familiarity is true‚ then subjects who are familiar with any object or behavior will find it easier to make a mental rotation. 2. The results showed the typical effect of mental rotation on response times. There were moments when I could not tell if the shapes were different or the same. As when
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Mental Rotation Lab Report: PSY 405 – Spring 2012 Deng Jichun Introduction The purpose of this experiment was to confirm the theory that we create picturelike representation of perceived visual stimuli‚ and we can also mentally rotate the representation to a known “upright” position. The reaction time increases linearly according to the angle of the rotation‚ regardless of their complexity (Cooper‚ 1975). In some circumstances‚ we snap the perceived visual stimuli and create
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Abstract The idea of mental imagery has always been a controversial subject in the field of psychology. Many psychologists have argued that such a concept is impossible to measure because it can not be directly observed. Though they are right about this‚ it is not impossible to measure how quickly mental rotations of images are processed in our brains. Subjects in this experiment were presented two shapes simultaneously‚ via computer screen‚ and asked to make judgement‚ as quickly as possible
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Gender Differences in Mental Rotation Abstract The general research topic for this were the sex differences in mental rotation. Twenty- five female students and five male students were assigned to different treatment conditions and were tested on their response time and accuracy in the different mental rotation conditions. It was hypothesized that lateralization between genders would effect the results based on stimulus type. Males were expected to perform better‚ both in accuracy and speed
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figures. One way in which spatial ability can be operationalised is in the form of mental rotation test. A mental rotation test requires participants to identify rotated versions of a target stimulus. Mental rotation usually takes place in the right cerebral hemisphere‚ in the areas where perception also occurs. Mental rotation can be separated into the following cognitive stages (Johnson 1990): 1) Create a mental image of an object 2) Rotate the object mentally until a comparison can be made 3)
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Student Manual for CogLab™ Experiments Prepared by Greg Francis and Ian Neath Purdue University Instructional Material by Angie Mackewn University of New Brunswick and Danalee Goldthwaithe University of British Columbia August 7‚ 2003 Copyright © 2004 Wadsworth‚ a division of Thomson Learning‚ Inc. Thomson Learning™ is a trademark used herein under license. CogLab™ is a service mark used herein under license. ALL RIGHTS RESERVED. No part of this work covered by the copyright hereon may be
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College of Staten Island. Approximately 45 students participated in this study for course work. Students’ age ranged from 20-40 years for both males and females. Materials In order to start this experiment‚ students were asked to sign in to their CogLab accounts. To start the first trial of the change detection experiment‚ participants were required to press the space bar. One picture will appear after the other. In this experiment two pictures were represented in modification for each trial. On
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Job Rotation System Report to XYZ Co. Prepared by Dan MacLeod and Eric Kennedy 1993 Introduction There are many reasons for implementing a job rotation system including the potential for increased product quality‚ employee satisfaction and lower cumulative trauma disorder rates. However‚ the difficulties of changing the organizational structure of an entire facility can prove difficult. It is important that the program start slowly at first so that the program can
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