ERIC Number: EJ844419
Record Type: Journal
Publication Date: 2005
Pages: 17
Abstractor: As Provided
ISBN: N/A
ISSN: ISSN-0211-2159
EISSN: N/A
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.)
Descriptors: Stimuli, Reaction Time, Mathematics Activities, Cues, Inhibition, Experiments, Spatial Ability, Intervals, Sensory Training, Visual Acuity, Lateral Dominance, Foreign Countries, Higher Education, Statistical Analysis, Visual Perception, Motion, Scientific Concepts
University of Valencia. Dept. Metodologia, Facultad de Psicologia, Avda. Blasco Ibanez 21, 46010 Valencia, Spain. Tel: +34-96-386-4100; Web site: http://www.uv.es/revispsi/
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
Grant or Contract Numbers: N/A