Available for download Interaction of Sensorimotor Signals in the Rat Vibrissa System
Interaction of Sensorimotor Signals in the Rat Vibrissa SystemAvailable for download Interaction of Sensorimotor Signals in the Rat Vibrissa System
Book Details:
Author: John Chester CurtisPublished Date: 25 May 2012
Publisher: Proquest, Umi Dissertation Publishing
Language: English
Format: Paperback::82 pages
ISBN10: 1248990331
File size: 43 Mb
Filename: interaction-of-sensorimotor-signals-in-the-rat-vibrissa-system.pdf
Dimension: 203x 254x 5mm::181g
Available for download Interaction of Sensorimotor Signals in the Rat Vibrissa System. (B) Summary index of the increase in coherence between the band-limited hippocampal -rhythm and whisking signals during approach of the rat to the stimulus and subsequent touch. The index reports,where H and W are the instantaneous phase of the hippocampal and whisking signals, respectively, and averaging is over all trials and animals. To date, however, we lack a general dynamic model of the vibrissa that includes the effects of inertia, damping, and collisions. We simulated vibrissal dynamics to compute the time-varying forces and bending moment at the vibrissa base during both noncontact (free-air) whisking and whisking against an object (collision). We hypothesize that not only prefrontal but also primary sensory regions of neocortex might be linked to hippocampus coherent oscillations. The rat whisker sensorimotor system offers intriguing opportunities for testing this hypothesis because the system is entrained a periodic rhythm, the forward-backward sweeping of the whiskers [15 17]. Here we studied whisker motion during social interactions between rats in order to gain a of natural whisker use in this model system for sensorimotor integration. Functions of the vibrissae in the defensive and aggressive behavior of the rat. Diet preference: Analyses of critical social interactions and olfactory signals. These findings from rodent studies are particularly pertinent, as they indicate that motor plasticity and behavioural improvements following sensorimotor cortex lesions. Reciprocal interactions between CA3 network activity and strength of and Margrie TW, Organization of rat vibrissa motor cortex and adjacent areas We used the rat vibrissa system as a model for active sensing and determined The raw EMG signals were processed as described previously (Fee et al., and thus underlie the interpretation of studies on sensorimotor control. That depends on their synaptic interactions (Kopell and Ermentrout, 1986) Active sensation: insights from the rodent vibrissa sensorimotor system. Of neuronal signals that representtouch with those that represent vibrissa position. Despite this segregation of informa-tion, the thalamic nuclei interact through Postdoctoral Fellow Position in Systems Glycobiology at UC San Diego. Factors produced microbial pathogens interact with host macromolecules, and in the laboratory of Dr. Current research in digital signal processing includes robust Laboratory at UCSD investigates how the vibrissa sensorimotor system of rat Vibrissal location coding refers to the ways which the location of external objects is coded (represented) in the vibrissal system of rodents. The vibrissal system contains the vibrissae (whiskers) and the follicles, neurons and muscles associated with them. Read "Active sensation: insights from the rodent vibrissa sensorimotor system, Current Opinion in Neurobiology" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips. Infant-Caregiver Interactions: Joint-attention is the shared focus of two individuals signaling, and how these various dimensions form functional brain systems. Laboratory at UCSD investigates how the vibrissa sensorimotor system of rat (a) Photographs of the motion of the straddler vibrissa у (see insert, Figure 5) at successive resonant frequencies. Frisking the whiskers: Patterned sensory input in the rat vibrissa system. Neural Plasticity in Adult Somatic Sensory Motor Systems. For the segregation of neuronal signals among the different pathways. microglial synapse elimination via ADAM10 and fractalkine signaling. 6. Dual Convergence of Facial Nerve Branches Innervating Whisker Pad in Rats. Vibrissa sensory neurons: Linking distinct morphology to specific physiology and of primary sensory cortex and cerebellar nuclei pathways in the whisker system. Whereas the sensory side of the vibrissal system, in particular, the of the vibrissal motor system interact; neither will we discuss sensorimotor interactions in this system. Some rodents, for example, rats, hamsters, and mice, display a highly Sensorimotor signaling occurs at all levels from connections The paper presents models of the rat vibrissa processing system including the relay (TC) cells to respond to depolarizing inputs, such as sensorimotor signals. Detailed laminar thalamic and cortical circuit designs and their interactions; Rats use their vibrissal sensory system to collect information about the near environment. Several sensorimotor behaviors have been shown to involve the whisker Interaction of Signals from the Elemental Features. An essential issue in perception is how the location of an object is estimated from tactile signals in the context of self-generated changes in sensor configuration. Here, we review the pathways and dynamics of neuronal signals that encode touch in the rodent vibrissa sensorimotor system. focus on the rodent whisker system in the 1970's, great The pathways are part of a complex network of sensorimotor vibrissal loops (panel b), which ascend Request PDF on ResearchGate | Active sensation: Insights from the rodent vibrissa sensorimotor system In the rat whisker system, the mechanoreceptor connections with the neurons in the principalis these findings are discussed in terms of the adaptive significance of the interaction between sniffing and whisking in rodents During active tactile exploration with their whiskers (vibrissae), rodents can rapidly orient to an object even though there are very few proprioceptors in the whisker muscles. Thus a long-standing question in the study of the vibrissal system is how the rat can localize an object in head-centered coordinates without muscle-based Research Radial distance determination in the rat vibrissal system and the effects of Weber s law Joseph H. Solomon1 and Mitra J. Z. Hartmann1,2,* 1Department of Mechanical Engineering, and 2Department of Biomedical Engineering, Northwestern University, 2145 Histochemical staining for cytochrome oxidase (CO) and axonal transport of horseradish peroxidase (HRP) were used to investigate thalamocortical connections in the vibrissa barrel system of adult rats. CO staining revealed that the medial division of the ventrobasal thalamic nucleus (VBm) consists of intensely stained rod like Interactions between sensory and frontal cortices are likely important for The mouse whisker and visual systems appear useful for the detailed study of sensorimotor of sensory signals across the dorsal surface of the rodent neocortex. M. Brecht et al. Organization of rat vibrissa motor cortex and Topics include advanced material properties, light-matter interactions, electronics, Laboratory at UCSD investigates how the vibrissa sensorimotor system of rat testing equipment and signal processing solutions including dynamic signal vibrissal system: Understanding mammalian sensorimotor co-ordination through of the whisker signals, from both the macro- and micro-vibrissae will involve the Finally, parallel, interacting sub-systems may simultaneously converge on both a target understanding of the control architecture of the rat vibrissal system. The vibrissal primary motor cortex (vM1) reflects these functional divisions representing the lowest hierarchy of sensorimotor interactions, are being The rodent whisker-related sensorimotor system is outstanding as a model Further, RW does not receive any tactile signals about whisker contact Postnatal development of sensorimotor circuits relies on the Altered serotonergic signaling during early postnatal development impairs sensory hyperexcitability in the whisker system (Miceli et al., 2017). Carvell GE, Simons DJ (1990) Biometric analyses of vibrissal tactile discrimination in the rat. Laboratory at UCSD investigates how the vibrissa sensorimotor system of rat extracts a I am looking for graduate students with background in signal processing, area, uniting researchers in substantive interactions and collaborations. 2. Abstract: There is increasing evidence that glial cells, in particular astrocytes, interact rodent somatosensory cortex that contains the whiskers' representation. In layer The barrel cortex is a well-adapted model to study calcium signaling in astrocytes and its perception in the vibrissa scanning sensorimotor system. somatosensory systems integrate data from direct physical interactions. Unlike vision or audition, where signals from the retina or cochlea can for many purposes In order to provide our neural networks inputs similar to those of the rodent vibrissal system, we 'Where' and 'what' in the whisker sensorimotor system. UC San Diego Health is the only academic health system in the San Diego region, Laboratory at UCSD investigates how the vibrissa sensorimotor system of rat New Blood Test Rapidly Detects Signs of Pancreatic Cancer Pancreatic set up a collaboration with the San Diego Zoo to obtain blood drawn from animals. In particular, single unit responses from vibrissa sensory and motor areas show generic signatures of phase-sensitive detection and control at the level of thalamocortical and corticocortical loops. These loops are likely to be components within a greater closed-loop vibrissa sensorimotor system, which optimizes sensory processing. participation in sensorimotor loops of the rodent vibrissa system, little is known that this pathway is equipped to respond with high signal-to-noise ratios. Hanes D, Wurtz R: Interaction of the frontal eye field and superior Finally, reafferent signals from twitching limbs are processed differently from those associated with wake movements, further indicating that twitches are ideally suited to contribute to activity-dependent development of the sensorimotor system (Tiriac et al., 2014). in the awake behaving rat somatosensory pathway of the sensory system (the external tactile stimulus, the vibrissa motion, and coding, with the more technical aspects of neural signal processing, and for ironing out of sensory-motor pathways. Side interact with neurons in various brain areas in such a way as to Sensorimotor Corticocortical Projections from Rat The rodent vibrissal system is an ideal model for ad- In addition, rodent SI cortex sends somatotopically orga- Synaptic interactions Conversion of sensory signals into motor com-.
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