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ERIC Number: EJ913260
Record Type: Journal
Publication Date: 2011-Mar
Pages: 10
Abstractor: As Provided
Reference Count: 0
ISSN: ISSN-0278-2626
The Advantage of Mentally Rotating Clockwise
Liesefeld, Heinrich R.; Zimmer, Hubert D.
Brain and Cognition, v75 n2 p101-110 Mar 2011
The time taken to decide whether a character is shown in its mirror or normal version has been shown to increase approximately linearly with the angular departure from an up-right position. Additionally, in some studies, decisions took longer for clockwise tilted characters than for counterclockwise tilted ones. Other studies do not report the latter effect. We argue that inconsistencies across studies are caused by variance in participants' strategies. The task employed here was specifically designed to bring these strategies and thereby the direction of rotation under experimental control. From the EEG recorded during the rotation period, we extracted an event-related slow potential whose amplitude is sensitive to the amount of mental rotation. In both strategy conditions, the slow potential's amplitude was lower for clockwise than for counterclockwise rotations. We take this as evidence that mental rotation of alphanumeric characters is easier in a clockwise than in a counterclockwise direction. (Contains 10 figures.)
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A