Abstract:
:We compared the effectiveness of central and peripheral targets in a saccadic countermanding task. Stop-signal reaction times (SSRTs) do not differ significantly for central and peripheral stop signals. Further, when central and peripheral stop signals are presented together, SSRTs behave as expected of independent processes in parallel. A linear rise-to-threshold race model (LATER) with independent go and stop processes describes the behavioural data successfully, predicting not only the latency distribution of saccades that escaped inhibition, but also the probability of successful countermanding. Central and peripheral stop signals appear to act independently and with equal effectiveness.
journal_name
Vision Resjournal_title
Vision researchauthors
Asrress KN,Carpenter RHdoi
10.1016/s0042-6989(01)00107-9subject
Has Abstractpub_date
2001-09-01 00:00:00pages
2645-51issue
20eissn
0042-6989issn
1878-5646pii
S0042-6989(01)00107-9journal_volume
41pub_type
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