1 edition of Foreperiod effects in simple reaction time: anticipation or expectancy? found in the catalog.
Foreperiod effects in simple reaction time: anticipation or expectancy?
Joan Gay Snodgrass
|Statement||by Joan Gay Snodgrass.|
|Series||Journal of experimental psychology monograph supplement -- v. 79, no. 3.|
|The Physical Object|
|Number of Pages||19|
In the reaction time paradigm, the time interval between a warning signal and the go signal, or stimulus. foreperiod In simple-RT situations, the regularity of the length . The impact of foreperiod on AB was investigated by Badcock et al. (), who manipulated the foreperiod by extending, shortening and/or randomising the time between trial onset and T1 presentation. Badcock et al. () found that, compared with randomly variable foreperiods, having a predictable foreperiod attenuated the AB, but only for Author: Lucienne Shenfield, Vanessa Beanland, Deborah Apthorp, Deborah Apthorp.
For example, when using a constant foreperiod in a block of trials (i.e., within a block the target always appears following the same foreperiod), RTs will be faster for a shorter foreperiod block (e.g., ms) compared with a long foreperiod block (e.g., 2, ms, see Rolke and Hofmann, , for a typical study). The time between the cue and. go back to reference Snodgrass, J. G. (). Foreperiod effects in simple reaction time: Anticipation or expectancy? Journal of Experimental Psychology, 79, 1– PubMedCrossRef Snodgrass, J. G. (). Foreperiod effects in simple reaction time: Anticipation or expectancy? Journal of Experimental Psychology, 79, 1– PubMed CrossRef.
Pueblo, CO ) Foreperiod ef-fect on time estimation and simple reaction time in schizophrenia. Journal of Clinical Psychology, 36(l), The effects of foreperiod duration (FP) on time estimation and reac-tion time were compared. There was no difference between schizo-phrenics and nonschizophrenics with respect to the effect of FP, or. Temporal Expectation Indexed by Pupillary Response In: Timing & Time Perception. Foreperiod and simple reaction time. Psychol. Bull., 89, – Time-based expectancy for task relevant stimulus features. Timing Time Percept. doi: /Cited by: 6.
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These results were taken as evidence for an anticipation model as opposed to an expectancy model for foreperiod effects in simple RT. The anticipation model proposes an underlying RT distribution of low variability which is unaffected by foreperiod variability and payoffs, but which combines with more variable distributions of time estimations Cited by: Effects of Foreperiod, Foreperiod Variability, and Probability of Stimulus Occurrence on Simple Reaction Time.
Drazin - - Journal of Experimental Psychology 62 (1) Tapping Rate and Expectancy in Simple Reaction Time Tasks. Foreperiod effects in simple reaction time: anticipation or expectancy. (PMID) Abstract Citations; Related Articles; Data; BioEntities; External Links ' ' Snodgrass JG Journal of Experimental Psychology [01 Mar79(3)] Type: Journal Article.
Abstract Cited by: Such tendency was eliminated when a relatively shorter foreperiod was presented more frequently than a longer foreperiod. Marked similarity of the effect of foreperiod duration between time estimation and simple reaction time experiments was by: Studies of simple visual and auditory reaction processes published since Teichner are reviewed, with emphasis on the preparatory phase of these processes, par- ticularly the foreperiod (FP).
Foreperiod Effects in Simple Reaction Time Anticipation or Expectancy - Free download as PDF File .pdf), Text File .txt) or read online for free. articol. Foreperiod Effects in Simple Reaction Time: Anticipation or Expectancy. Joan G.
Snodgrass - - Journal of Experimental Psychology 79 (3p2) Development of Readiness to. Reviews studies of simple visual and auditory reaction processes published since W.
Teicher (), with emphasis on the preparatory phase of these processes, particularly the foreperiod (FP). Choice reaction latencies were measured at three different a priori probabilities for two stimulus alternatives.
Unlike the results of some other studies, the mean latency of a given response was nearly the same whether the response was correct or incorrect. The discriminable stimuli were a or a Hz tone presented at 70 dB SPL. Latencies and standard deviations, based on ab Cited by: The effects of brief variable foreperiods on simple reaction time.
DONALD J. POLZELLA, ERIC G. RAMSEY, and SAMUEL M. BOWER. University of Dayton, Dayton, Ohio. Highly practiced subjects responded to a visual stimulus that was presented with a probability of (no catch trials) or (catch trials) after one of five randomly determined brief fore periods (,or msec).Cited by: In some studies a clear effect of foreperiod duration on auditory RT has been found, in contrast to a recent finding that foreperiod duration affected visual RT but not auditory RT.
By means of two experiments, the effects of practice, time-on-task, reaction task (a-reaction versus selective reaction) and signal intensity were by: The present results show that, when sequential effects were controlled by the elimination of all trials where the foreperiod was shorter than the preceding one, the negative slope of the reaction time-foreperiod function diminished but did not by: Two groups of pigeons were exposed to a simple reaction-time procedure in which mean foreperiod duration was 5, 10, or 20 seconds.
For one group, the foreperiods had an arithmetic, or rectangular, distribution; for the second group, they had a constant-probability, or Bernoulli, by: 6. "Measuring Temporal Preparation" published on 27 Mar by Brill.
Implicit Timing: Foreperiod Task. The foreperiod paradigm was a shortened version of the task used in Vallesi et al. (; Figure 1B).Each trial started with the presentation of a “XX” (2 cm × 2 cm), which was displayed in the center of the screen simultaneously with an auditory warning signal (a Hz pure tone) played for 50 ms via laptop internal by: 5.
Two experiments of simple reaction time (RT) were carried out, and a two-state model was proposed. Three and eight undergraduate students served as subjects in Experiments I and II, respectively.
In earlier experiments, Okamoto () showed that optimum foreperiod (FP) depends on FP's used and on relative frequencies of these FP' by: 1. We recently discussed temporal anticipation and the aging-foreperiod effect.
This effect occurs in a reaction time task with a variable foreperiod and no catch trials. The classic finding is shorter reactions times with longer foreperiods.
This is called the aging-foreperiod effect, and it is shown in the figure below from Schmidt and Lee (p Reaction time (RT) was fractionated into premotor and motor components based upon the difference between EMG and finger-lift responses.
EMGs were recorded from the extensor muscle of the responding forearm during measurement of simple auditory RTs of 54 Ss. The premotor time was that period from the presentation of the stimulus to the appearance of increased muscle firing, while the motor time Cited by: Changes in heart rate, pupillary diameter, and brain potentials were examined during trials in which foreperiod of a simple reaction time ~RT.
task was fixed or unpredictable. Trials were also included in which stimuli for the speeded motor reaction were triggered by psychophysiological changes occurring spontaneously in the foreperiod. For example, when using a constant foreperiod in a block of trials (i.e., within a block the target always appears following the same foreperiod), RTs will be faster for a shorter foreperiod block (e.g., ms) compared with a long foreperiod block (e.g., 2, ms, see Rolke and Hofmann,for a typical study).
The time between the cue and Cited by:. The effect of knowledge of results upon contingent negative variation in a reaction time situation with a variable foreperiod Psychobiology, Sep G.
H. Blowers, G. C. OngleyCited by: 2. The retrieval-load by anticipation-interval interaction effect was analyzed using a simple main effects analysis (see Supplemental Results). This demonstrated that interval influenced load in the 1 load condition but not the 3 or 5 load conditions shown in Figure 5 and demonstrates that activation was increased at the 1 item load in the Cited by: 9.interested in the effects of different task factors on the dependent variables of performance accuracy and reaction time (RT).
Usually the participant is cued with a preparatory signal to get ready to make a particular response. Following a ﬁxed period of time (known as the foreperiod or preparatory.