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Choice reaction time is strongly determined by the sequence of preceding stimuli. With long response-stimulus intervals (RSIs), a cost-benefit pattern is observed, which has been related to expectancy, whereas with short RSIs a benefit-only pattern emerges, possibly because of automatic facilitation. In the present study, event-related potentials were recorded while subjects performed serial choice responses to visual and auditory stimuli at long and short RSIs. As expected, reaction times displayed cost-benefit and benefit-only patterns at long and short RSIs, respectively. In contrast, sequential effects in event-related potential amplitudes displayed a cost-benefit pattern, unaffected by the RSI. The results demonstrate that an expectancy-like mechanism is always active in serial tasks but appears to influence performance only when the RSI is long.
W Sommer, and
H Leuthold, and
E Soetens
July 1988,
Rinsho shinkeigaku = Clinical neurology,
W Sommer, and
H Leuthold, and
E Soetens
January 2019,
Neurobiology of aging,
W Sommer, and
H Leuthold, and
E Soetens
January 2000,
Neuropsychobiology,
W Sommer, and
H Leuthold, and
E Soetens
November 2012,
Neuroscience letters,
W Sommer, and
H Leuthold, and
E Soetens
May 2005,
Neuroscience research,
W Sommer, and
H Leuthold, and
E Soetens
April 2005,
Neuroscience letters,
W Sommer, and
H Leuthold, and
E Soetens
November 1984,
Brain and language,
W Sommer, and
H Leuthold, and
E Soetens
January 1994,
Rinsho shinkeigaku = Clinical neurology,
W Sommer, and
H Leuthold, and
E Soetens
May 1998,
Ergonomics,
W Sommer, and
H Leuthold, and
E Soetens
October 1995,
Nihon Ronen Igakkai zasshi. Japanese journal of geriatrics,
