Abstract：
:This study proposes a standard paradigm for the investigation of visual information processing by means of gamma activity and presents a novel set of stimuli with a broad range of complex, coloured familiar real world and unfamiliar nonsense objects which are well matched with respect to physical stimulus properties. In order to demonstrate that the paradigm and stimulus set yield reliable results both were employed in two electrophysiological investigations in two independent laboratories. Participants were required to discriminate familiar from unfamiliar stimuli. The pattern of results was very consistent across laboratories. Early event-related potentials were not influenced by the stimulus type suggesting that physical stimulus properties did not confound object familiarity. Induced gamma band activity was stronger for familiar than for unfamiliar objects, supporting the notion of gamma activity as a signature of cortical networks underlying object representations.
journal_name
Neuroimagejournal_title
NeuroImageauthors
Busch NA,Herrmann CS,Müller MM,Lenz D,Gruber Tdoi
10.1016/j.neuroimage.2006.07.034subject
Has Abstractpub_date
2006-12-01 00:00:00pages
1169-77issue
4eissn
1053-8119issn
1095-9572pii
S1053-8119(06)00745-2journal_volume
33pub_type
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