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Examining Lateralized Semantic Access Using Pictures
Lovseth, Kyle Atchley, Ruth Ann
Lovseth, Kyle
Atchley, Ruth Ann
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Abstract
A divided visual field (DVF) experiment examined the semantic processing strategies employed by the cerebral hemispheres to determine if strategies observed with written word stimuli generalize to other media for communicating semantic information. We employed picture stimuli and vary the degree of semantic relatedness between the picture pairs. Participants made an on-line semantic relatedness judgment in response to sequentially presented pictures. We found that when pictures are presented to the right hemisphere responses are generally more accurate than the left hemisphere for semantic relatedness judgments for picture pairs. Furthermore, consistent with earlier DVF studies employing words, we conclude that the RH is better at accessing or maintaining access to information that has a weak or more remote semantic relationship. We also found evidence of faster access for pictures presented to the LH in the strongly-related condition. Overall, these results are consistent with earlier DVF word studies that argue that the cerebral hemispheres each play an important and separable role during semantic retrieval.
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2009-10-20
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Elsevier
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Lovseth, Kyle, and Ruth Ann Atchley. "Examining Lateralized Semantic Access Using Pictures." Brain and Cognition 72.2 (2010): 202-09.