The hemispheric lateralization for processing geometric word/shape combinations: the Stroop-shape effect.
The authors conducted 4 experiments to test whether hemispheric lateralization occurs for the processing of geometric word-shape combinations. In 3 experiments, participants responded to geometric shapes combined with geometric words (square, circle, triangle). In the 4th experiment, stimuli were combinations of geometric shapes and non-geometric words. The authors predicted that it would take longer to respond in incongruent conditions (e.g., the word "square" combined with the shape of a circle) than in congruent conditions. The authors found the strongest incongruency effects for the dominant hemisphere--that is, the left hemisphere for responding to words and the right hemisphere for responding to shapes. A Shape Interfering Properties hypothesis (SIP) is a possible explanation for these results.
Gier
Vicki S
VS
Department of Arts and Sciences, University of Mississippi-Meridian 39307, USA. vgier@meridian.msstate.edu
Kreiner
David S
DS
Solso
Robert L
RL
Cox
Sheryl Lynn
SL
D000293:Adolescent; D000328:Adult; D000704:Analysis of Variance; D001288:Attention / Q000502:physiology; D005260:Female; D007839:Functional Laterality / Q000502:physiology*; D006801:Humans; D008297:Male; D010364:Pattern Recognition, Visual / Q000502:physiology*; D010775:Photic Stimulation; D011597:Psychomotor Performance / Q000502:physiology; D011930:Reaction Time / Q000502:physiology*; D057190:Stroop Test; D011795:Surveys and Questionnaires; D014794:Visual Fields / Q000502:physiology*