Gap effect and reaction time distribution: simple vs choice manual responses
نویسندگان
چکیده
منابع مشابه
Gap effect and reaction time distribution: simple vs choice manual responses.
It is well known that saccadic reaction times (SRT) are reduced when the target is preceded by the offset of the fixation point (FP)--the gap effect. Some authors have proposed that the FP offset also allows the saccadic system to generate a separate population of SRT, the express saccades. Nevertheless, there is no agreement as to whether the gap effect and express responses are also present f...
متن کاملLooking for the GAP effect in manual responses and the role of contextual influences in reaction time experiments.
When the offset of a visual stimulus (GAP condition) precedes the onset of a target, saccadic reaction times are reduced in relation to the condition with no offset (overlap condition) - the GAP effect. However, the existence of the GAP effect for manual responses is still controversial. In two experiments using both simple (Experiment 1, N = 18) and choice key-press procedures (Experiment 2, N...
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This article reports four experiments on the ability to inhibit responses in simple and choice reaction time (RT) tasks. Subjects responding to visually presented letters were occasionally presented with a stop signal (a tone) that told them not to respond on that trial. The major dependent variables were (a) the probability of inhibiting a response when the signal occurred, (b) mean and standa...
متن کاملSome experiments on simple and choice reaction time.
4 experiments in simple and choice reaction time (RT) are reported. Experiment I examines the effect of monetary payoffs on the accuracy and variability of time estimation. Experiment II examines the effect of moving the position of a narrow payoff band along the time axis on the variability of observed RTs. This appears to alter the proportion of bona fide reactions (of low variability) and of...
متن کاملAnticipatory postural adjustments under simple and choice reaction time conditions.
Two different schemes of the central organization of anticipatory postural adjustments (APAs) have been proposed: one of them assumes that postural and focal components of an action are results of a single control process (single-process hypothesis) while the other one suggests that these two components result from two relatively independent control processes (dual-process hypothesis). To disti...
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ژورنال
عنوان ژورنال: Brazilian Journal of Medical and Biological Research
سال: 1998
ISSN: 0100-879X
DOI: 10.1590/s0100-879x1998001000012