Results 31 to 40 of about 142,136 (341)
Frontiers in Physiology, 2018 The tiny ensemble of neurons in the leech ganglion can discriminate the locations of touch stimuli on the skin as precisely as a human fingertip. The leech uses this ability to locally bend the body-wall away from the stimulus. It is assumed that a three-
Elham Fathiazar +4 more
doaj +1 more source
Proprioceptive and tactile processing in individuals with Friedreich ataxia: an fMRI study
Frontiers in Neurology, 2023 ObjectiveFriedreich ataxia (FA) neuropathology affects dorsal root ganglia, posterior columns in the spinal cord, the spinocerebellar tracts, and cerebellar dentate nuclei. The impact of the somatosensory system on ataxic symptoms remains debated.
Virginie Destrebecq +6 more
doaj +1 more source
The homuncular jigsaw: investigations of phantom limb and body awareness following brachial plexus block or avulsion [PDF]
, 2019 Many neuropsychological theories agree that the brain maintains a relatively persistent representation of one's own body, as indicated by vivid "phantom" experiences.
Giannini, Anna Maria +3 more
core +2 more sources
A Critical Period for the Rapid Modification of Synaptic Properties at the VPm Relay Synapse
Frontiers in Molecular Neuroscience, 2017 In addition to cortical areas, the thalamus also displays plasticity during a critical period in early life. Since most sensory information is transmitted to the cortex via the thalamus, it will be of significant interest to understand the precise time ...
Libiao Pan +10 more
doaj +1 more source
Massive cortical reorganization in sighted Braille readers
eLife, 2016 The brain is capable of large-scale reorganization in blindness or after massive injury. Such reorganization crosses the division into separate sensory cortices (visual, somatosensory...).
Katarzyna Siuda-Krzywicka +8 more
doaj +1 more source
Effects of methamphetamine on locomotor activity and thalamic gene expression in leptin-deficient obese mice [PDF]
, 2017 Leptin is an adipose-derived hormone that regulates energy balance. Leptin receptors are expressed in extrahypothalamic sites and several reports showed that leptin can influence feeding and locomotor behavior via direct actions on dopaminergic neurons ...
Bisagno, Veronica +3 more
core +2 more sources
Fine-grained nociceptive maps in primary somatosensory cortex [PDF]
, 2012 Topographic maps of the receptive surface are a fundamental feature of neural organization in many sensory systems. While touch is finely mapped in the cerebral cortex, it remains controversial how precise any cortical nociceptive map may be.
, +5 more
core +2 more sources
Object-guided Spatial Attention in Touch: Holding the Same Object with Both Hands Delays Attentional Selection [PDF]
, 2009 Previous research has shown that attention to a specific location on a uniform visual object spreads throughout the entire object. Here we demonstrate that, similar to the visual system, spatial attention in touch can be object guided.
Bettina Forster +6 more
core +1 more source
Frontiers in Systems Neuroscience, 2014 In our experiments, we removed a major source of activation of somatosensory cortex in mature monkeys by unilaterally sectioning the sensory afferents in the dorsal columns of the spinal cord at a high cervical level.
Hui-Xin eQi, Jon H Kaas, Jamie L Reed
doaj +1 more source
Representation of Object Size in the Somatosensory System [PDF]
Journal of Neurophysiology, 2006 In this study we investigate the haptic perception of object size. We report the results from four psychophysical experiments. In the first, we ask subjects to discriminate the size of objects that vary in surface curvature and compliance while changing contact force.
Lynn Berryman +2 more
openalex +4 more sources