منابع مشابه
Neuromimetic model of interval timing
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...
متن کاملComputational models of interval timing
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...
متن کاملInterval 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...
متن کاملGlutamate – A Forgotten Target for Interval Timing
immunohistochemical analysis against Arc protein was used to test whether a change in the CS–US interval (resulting in a new memory formation for duration) triggers plasticity in the dorsal striatum. In a similar fashion, the “time-shift paradigm” provides a powerful tool for isolating the role of Glu in the formation of memory for target durations. Recently, we examined the effect of intraperi...
متن کاملNeuropsychological mechanisms of interval timing behavior.
Interval timing in the seconds-to-minutes range is believed to underlie a variety of complex behaviors in humans and other animals. One of the more interesting problems in interval timing is trying to understand how the brain times events lasting for minutes with millisecond-based neural processes. Timing models proposing the use of coincidence-detection mechanisms (e.g., the detection of simul...
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ژورنال
عنوان ژورنال: Nature Reviews Neuroscience
سال: 2006
ISSN: 1471-003X,1471-0048
DOI: 10.1038/nrn1764-c1