TY - JOUR
T1 - Generating an image from an ambiguous visual input
T2 - An electroencephalograhic (EEG) investigation
AU - Gill, Harwant S.
AU - O'Boyle, Michael W.
N1 - Funding Information:
This research was supported in part by equipment grants from the Psychology Department and the Interdisciplinary Neuroscience Program, Iowa State University, Ames, IA, USA. Portions of this paper were submitted to that Institution by H.S.G. as part of his doctoral dissertation in neuroscience.
PY - 2003/4
Y1 - 2003/4
N2 - Fourteen right-handed males were shown slides of common objects (e.g., wristwatch), familiar situations (e.g., two people shaking hands), and inkblots from a popular projective test (Holtzman, 1986) and then asked to name the object, assess the situation, or describe the most salient image emerging from the inkblot. Alpha power suppression was monitored over the left and right frontal, temporal, parietal, and occipital lobes to determine the brain circuitry responsible for the processing of each type of stimulus. When processing common objects and familiar situations there was bilateral activation of the parietal and occipital lobes; when processing inkblots, bilateral activation of the parietal and occipital lobes was again obtained, but complemented by selective activation of the right frontal lobe. The later suggests that anterior regions of the right cerebral hemisphere contribute to the generation of dynamic images like those evoked by visually ambiguous inkblots.
AB - Fourteen right-handed males were shown slides of common objects (e.g., wristwatch), familiar situations (e.g., two people shaking hands), and inkblots from a popular projective test (Holtzman, 1986) and then asked to name the object, assess the situation, or describe the most salient image emerging from the inkblot. Alpha power suppression was monitored over the left and right frontal, temporal, parietal, and occipital lobes to determine the brain circuitry responsible for the processing of each type of stimulus. When processing common objects and familiar situations there was bilateral activation of the parietal and occipital lobes; when processing inkblots, bilateral activation of the parietal and occipital lobes was again obtained, but complemented by selective activation of the right frontal lobe. The later suggests that anterior regions of the right cerebral hemisphere contribute to the generation of dynamic images like those evoked by visually ambiguous inkblots.
UR - http://www.scopus.com/inward/record.url?scp=0037395597&partnerID=8YFLogxK
U2 - 10.1016/S0278-2626(03)00032-0
DO - 10.1016/S0278-2626(03)00032-0
M3 - Article
C2 - 12727183
AN - SCOPUS:0037395597
SN - 0278-2626
VL - 51
SP - 287
EP - 293
JO - Brain and Cognition
JF - Brain and Cognition
IS - 3
ER -