Interval timing under a behavioral microscope: Dissociating motivational and timing processes in fixed-interval performance
نویسندگان
چکیده
منابع مشابه
Interval timing under a behavioral microscope: Dissociating motivational and timing processes in fixed-interval performance.
The distribution of latencies and interresponse times (IRTs) of rats was compared between two fixed-interval (FI) schedules of food reinforcement (FI 30 s and FI 90 s), and between two levels of food deprivation. Computational modeling revealed that latencies and IRTs were well described by mixture probability distributions embodying two-state Markov chains. Analysis of these models revealed th...
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Three experiments studied timing in rats on 2-valued mixed-fixed-interval schedules, with equally probable components, Fixed-Interval S and Fixed-Interval L (FI S and FI L, respectively). When the L:S ratio was greater than 4, 2 distinct response peaks appeared close to FI S and FI L, and data could be well fitted by the sum of 2 Gaussian curves. When the L:S ratio was less than 4, only 1 respo...
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Neuromimetic models of time processing mechanisms in the sub-second to minute range are mainly focussed on the mean and variance properties of time estimation (scalarity) but offer no appropriate account of attention manipulations: a systematic underestimation of time with decreasing levels of attention. Our model is able to reproduce the scalarity and attentional effects, and fits both behavio...
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In recent years great progress has been made in the computational modeling of interval timing. A wide range of models capturing different aspects of interval timing now exist. These models can be seen as constituting four, sometimes overlapping, general classes of models: pacemaker– accumulator models, multiple–oscillator models, memory– trace models, and drift–diffusion (or random-process) mod...
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ژورنال
عنوان ژورنال: Learning & Behavior
سال: 2016
ISSN: 1543-4494,1543-4508
DOI: 10.3758/s13420-016-0234-1