Sensing and processing whisker deflections in rodents
نویسندگان
چکیده
منابع مشابه
Optimal Coding for Naturally Occurring Whisker Deflections
It is largely unknown how the properties of the somatosensory system relate to the properties of naturally occurring whisker deflections. Here, we analyse representations of simulated neurons that have optimally sparse activity in response to recorded reflections of a rat whisker from surfaces of everyday objects. These representations predict a number of interesting properties of neurons in th...
متن کاملProcessing of periodic whisker deflections by neurons in the ventroposterior medial and thalamic reticular nuclei.
Rats employ rhythmic whisker movements to sample information in their sensory environment. To study frequency tuning and filtering characteristics of thalamic circuitry, we recorded single-unit responses of ventroposterior medial (VPm) and thalamic reticular (Rt) neurons to 1- to 40-Hz sinusoidal and pulsatile whisker deflection in lightly narcotized rats. Neuronal entrainment was assessed by a...
متن کاملAdaptation of trigeminal ganglion cells to periodic whisker deflections.
Trigeminal ganglion neurons in adult rats adapt to periodic whisker deflections in the range of 1-40 Hz, manifested as a reduction in spike counts to progressively later stimuli in a train of pulsatile or sinusoidal deflections. For high velocity, pulsatile deflections, adaptation is time- and frequency-dependent; as in the case of thalamic and cortical neurons, adaptation is greater at higher ...
متن کاملTracking whisker and head movements in unrestrained behaving rodents.
Due to recent advances that enable real-time electrophysiological recordings in brains of awake behaving rodents, effective methods for analyzing the large amount of behavioral data thus generated, at millisecond resolution, are required. We describe a semiautomated, efficient method for accurate tracking of head and mystacial vibrissae (whisker) movements in freely moving rodents using high-sp...
متن کاملLocal field potentials and the encoding of whisker deflections by population firing synchrony in thalamic barreloids.
In layer IV of rat somatosensory cortex, barrel circuitry is highly sensitive to thalamic population firing rates during the first few milliseconds of the whisker-evoked response. This sensitivity of barrel neurons to thalamic firing synchrony was inferred previously from analysis of simulated barrel circuitry and from single-unit recordings performed one at a time. In this study, we investigat...
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ژورنال
عنوان ژورنال: PeerJ
سال: 2021
ISSN: 2167-8359
DOI: 10.7717/peerj.10730