کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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6203770 | 1263445 | 2011 | 10 صفحه PDF | دانلود رایگان |
Inhibition of return (IOR) is an orienting phenomenon characterized by slower behavioral responses to spatially cued, relative to uncued targets, when the cue-target onset asynchronies (CTOAs) are long enough that cue-elicited attentional capture has dispersed. Here, we implement a short-term depression (STD) account of IOR within a neuroscientifically based dynamic neural field model (DNF) of the superior colliculus (SC). In addition to the prototypical findings in the cue-target paradigm (i.e., the biphasic pattern of behavioral enhancement at short CTOAs and behavioral costs at long CTOAs), a variety of findings in the literature are generated with this model, including IOR in averaging saccades and the co-existence of IOR and endogenous orienting at the same location. Many findings that cannot be accommodated by this model could be accounted for by incorporating cortical contributions.
Research highlights⺠In this study, we simulate IOR using a DNF model of the superior colliculus. ⺠The model incorporates short-term depression of target-elicited sensory inputs. ⺠Prototypical findings in the cue-target experimental paradigm are replicated. ⺠Paradigms examining IOR in averaging and with predictive cueing are also simulated.
Journal: Vision Research - Volume 51, Issue 9, 11 May 2011, Pages 987-996