Topic
Time perception
About: Time perception is a research topic. Over the lifetime, 1918 publications have been published within this topic receiving 87020 citations.
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TL;DR: Using extracellular single-cell recordings in the mouse inferior colliculus, a small number of neurons, in particular band-pass neurons, exhibited stable filter characteristics and could therefore be referred to as "duration selective," supporting the idea that duration tuning is a general phenomenon in the mammalian auditory system.
Abstract: Temporal cues, including sound duration, are important for sound identification. Neurons tuned to the duration of pure tones were first discovered in the auditory system of frogs and bats and were discussed as specific adaptations in these animals. More recently duration sensitivity has also been described in the chinchilla midbrain and the cat auditory cortex, indicating that it might be a more general phenomenon than previously thought. However, it is unclear whether duration tuning in mammals is robust in face of changes of stimulus parameters other than duration. Using extracellular single-cell recordings in the mouse inferior colliculus, we found 55% of cells to be sensitive to stimulus duration showing long-pass, short-pass, or band-pass filter characteristics. For most neurons, a change in some other stimulus parameter, (e.g., intensity, frequency, binaural conditions, or using noise instead of pure tones) altered and sometimes abolished duration-tuning characteristics. Thus in many neurons duration tuning is interdependent with other stimulus parameters and, hence, might be context dependent. A small number of inferior colliculus neurons, in particular band-pass neurons, exhibited stable filter characteristics and could therefore be referred to as "duration selective." These findings support the idea that duration tuning is a general phenomenon in the mammalian auditory system.
162 citations
TL;DR: The result suggests the existence of a mechanism for processing a high spatial frequency stimulus which demands more time than that forprocessing a low spatial frequency.
160 citations
TL;DR: It is shown that merely looking at number symbols biases a temporal judgment on their duration depending upon the number's magnitude, which argues for a functional interaction between time and numbers in the cognitive system.
158 citations
TL;DR: The delay of the offset of the sustained field was found to increase with interclick interval up to 200 ms at least, which suggests that the sustainedField offset represents a sophisticated offset-monitoring mechanism rather than simply the cessation of stimulation.
157 citations
TL;DR: The involvement of the supplementary motor area (SMA) in the encoding of target durations by reporting convergent fMRI data from motor and perceptual timing tasks suggests that the SMA plays a key role in time processing as part of the striato-cortical pathway previously identified by animal studies, human neuropsychology and neuroimaging.
Abstract: The neural bases of timing mechanisms in the second-to-minute range are currently investigated using multidisciplinary approaches. This paper documents the involvement of the supplementary motor area (SMA) in the encoding of target durations by reporting convergent fMRI data from motor and perceptual timing tasks. Event-related fMRI was used in two temporal procedures, involving (1) the production of an accurate interval as compared to an accurate force, and (2) a dual-task of time and colour discrimination with parametric manipulation of the level of attention attributed to each parameter. The first study revealed greater activation of the SMA proper in skilful control of time compared to force. The second showed that increasing attentional allocation to time increased activity in a cortico-striatal network including the pre-SMA (in contrast with the occipital cortex for increasing attention to colour). Further, the SMA proper was sensitive to the attentional modulation cued prior to the time processing period. Taken together, these data and related literature suggest that the SMA plays a key role in time processing as part of the striato-cortical pathway previously identified by animal studies, human neuropsychology and neuroimaging.
157 citations