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Titolo:
The right hemisphere maintains solution-related activation for yet-to-be-solved problems
Autore:
Beeman, MJ; Bowden, EM;
Indirizzi:
Rush Med Coll, Chicago, IL 60612 USA Rush Med Coll Chicago IL USA 60612Rush Med Coll, Chicago, IL 60612 USA
Titolo Testata:
MEMORY & COGNITION
fascicolo: 7, volume: 28, anno: 2000,
pagine: 1231 - 1241
SICI:
0090-502X(200010)28:7<1231:TRHMSA>2.0.ZU;2-F
Fonte:
ISI
Lingua:
ENG
Soggetto:
BRAIN-DAMAGED PATIENTS; CEREBRAL HEMISPHERES; SEMANTIC ACTIVATION; TIME-COURSE; LANGUAGE; DISSOCIATION; SENSITIVITY; INFORMATION; MECHANISMS; DISCOURSE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social & Behavioral Sciences
Citazioni:
43
Recensione:
Indirizzi per estratti:
Indirizzo: Beeman, MJ Univ Penn, Dept Psychol, Ctr Cognit Neurosci, 3815 Walnut St, Philadelphia, PA 19104 USA Univ Penn 3815 Walnut St Philadelphia PA USA 19104 PA 19104 USA
Citazione:
M.J. Beeman e E.M. Bowden, "The right hemisphere maintains solution-related activation for yet-to-be-solved problems", MEM COGNIT, 28(7), 2000, pp. 1231-1241

Abstract

In five experiments, we examined the time course of hemispheric differences in solution activation for insight-like problems. We propose that solvinginsight problems requires retrieval of unusual interpretations of problem elements, and that right-hemisphere (RH) coarse semantic coding is more likely than left-hemisphere (LH) fine semantic coding to maintain semantic activation of such interpretations. In four experiments, participants attempted word problems for 7 sec (Experiments 1A and 1B) or 2 sec (Experiments 2A and 2B), and 750 msec later responded to lateralized target words. After 7 sec of solving effort, Experiment 1A participants showed greater solution-related priming (i.e., they named solutions faster than unrelated words) forleft visual field-RH (lvf-RH) targets than for right visual field-LH (rvf-LH) targets, and Experiment 1B participants made faster solution decisions on target words presented to the RH, as previously demonstrated following 15 sec of effort. After 2 sec of solving effort in Experiment 2A, women showed symmetric solution-related priming, although men showed a slight Ivf-RH advantage in priming; and in Experiment 2B participants made equally quick solution decisions for targets presented to the LH and to the RH. In Experiment 3, participants viewed the problems for 1,250 msec then named lateralized target words; they showed symmetric solution-related priming. These experiments demonstrate solution activation initially in both hemispheres, butmaintained solution activation only in the RH.

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Documento generato il 23/01/20 alle ore 06:30:52