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ERIC Number: EJ844419
Record Type: Journal
Publication Date: 2005
Pages: 17
Abstractor: As Provided
Reference Count: 43
ISSN: ISSN-0211-2159
Early and Late Inhibitions Elicited by a Peripheral Visual Cue on Manual Response to a Visual Target: Are They Based on Cartesian Coordinates?
Gawryszewski, Luiz G.; Carreiro, Luiz Renato R.; Magalhaes, Fabio V.
Psicologica: International Journal of Methodology and Experimental Psychology, v26 n1 p121-137 2005
A non-informative cue (C) elicits an inhibition of manual reaction time (MRT) to a visual target (T). We report an experiment to examine if the spatial distribution of this inhibitory effect follows Polar or Cartesian coordinate systems. C appeared at one out of 8 isoeccentric (7[degrees]) positions, the C-T angular distances (in polar coordinates) were 0[degree] or multiples of 45[degrees] and ISI were 100 or 800ms. Our main findings were: (a) MRT was maximal when C- T distance was 0[degree] and minimal when C-T distance was 180[degrees] and (b) besides an angular distance effect, there is a meridian effect. When C and T occurred in the same quadrant, MRT was longer than when T and C occurred at the same distance (45[degrees]) but on different sides of vertical or horizontal meridians. The latter finding indicates that the spatial distribution of the cue inhibitory effects is based on a Cartesian coordinate system. (Contains 4 figures.)
University of Valencia. Dept. Metodologia, Facultad de Psicologia, Avda. Blasco Ibanez 21, 46010 Valencia, Spain. Tel: +34-96-386-4100; Web site:
Publication Type: Journal Articles; Reports - Research
Education Level: Higher Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers - Location: Brazil
Identifiers - Assessments and Surveys: Edinburgh Handedness Inventory