1956
DOI: 10.1037/h0042317
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Time uncertainty in simple reaction time.

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Cited by 279 publications
(197 citation statements)
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“…Individual differences are important at this level: they range from 31 to 107 ms. These values are comparable to those found when comparing RTs obtained in favorable and unfavorable warning conditions (Karlin, 1959;Klemmer, 1956;Bertelson and Boons, 1960). This fact seems to show that the poorest state of preparation obtained in our experiment is quite comparable to the one obtained classically with unfavorable warning conditions (long and/or variable foreperiods).…”
Section: Rts Per Intervalsupporting
confidence: 89%
See 1 more Smart Citation
“…Individual differences are important at this level: they range from 31 to 107 ms. These values are comparable to those found when comparing RTs obtained in favorable and unfavorable warning conditions (Karlin, 1959;Klemmer, 1956;Bertelson and Boons, 1960). This fact seems to show that the poorest state of preparation obtained in our experiment is quite comparable to the one obtained classically with unfavorable warning conditions (long and/or variable foreperiods).…”
Section: Rts Per Intervalsupporting
confidence: 89%
“…It is now well-established that the presence of a warning signal preceding the stimulus allows reduction of reaction time (RT) (Karlin, 1959;Klemmer, 1956;Bertelson and Boons, 1960)! This fact is usually interpreted by assuming the existence of some state of preparation, or readiness, preceding the arrival of the stimulus.…”
Section: Introductionmentioning
confidence: 99%
“…This is true for expectancies involving stimulus shape (Posner & Snyder, 1975), position (Posner, Snyder, & Davidson, 1980), color (Humphreys, 1981), class (Neely, 1977), modality (Klein, 1977), and onset time (Klemmer, 1956).…”
mentioning
confidence: 99%
“…The varied FP method that arose out of the need to prevent synchronization has itself become the object of study with the rise of interest in informational variables in RT. The problem becomes that of the relation of objective time uncertainty to RT (e.g., Klemmer, 1956Klemmer, , 1957Karlin,1959Karlin, ,1966Drazin, 1961). However, use of varied FPs does not seem adequate for this purpose for three reasons.…”
mentioning
confidence: 99%
“…Because of the possibility of synchronized responses, the obvious question of the optimum constant FP (foreperiod between warning signal and response signal) has not even yet been answered. For example, Klemmer (1956) reported that the minimum RT at the shortest constant FP used was 250 msec, However, S should easily be able to make a response to the warning signal since there are no catch trials, taking care that his response will alwaysbe at least a little later than the response signal. Long constant FPs are necessary if this strategy is to be frustrated.…”
mentioning
confidence: 99%