Abstract:
:Event-related potentials(ERPs) were measured while subjects were constructing mental images of a letter of the alphabet. Following presentation of an uppercase letter, subjects were asked to form a mental image of the same letter in lower case, and determine whether or not it had an ascending or descending stroke (ascender or descender). ERPs were measured in a passive condition and then compared with the ERPs recorded while the subjects performed the discrimination task. During the discrimination task, negative potentials were observed in left frontal, central and parietal areas around 220 ms after the stimulus onset. These early negative potentials were dominant in the left hemisphere and are probably related to working memory processes in mental image formation.
journal_name
Neuroreportjournal_title
Neuroreportauthors
Yamamoto S,Mukai Hdoi
10.1097/00001756-199810260-00004subject
Has Abstractpub_date
1998-10-26 00:00:00pages
3359-62issue
15eissn
0959-4965issn
1473-558Xjournal_volume
9pub_type
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