Recent studies of the postcentral and additional somatosensory cortices support a
hierarchical scheme for information processing. In the postcentral gyrus, the complexity of …

▪ Abstract In this review we focus on the perceptual and psychophysical aspects of
somesthesis, although some information on neurophysiological aspects will be included as …

Subjects made roughness judgments of textured surfaces made of raised elements, while
holding stick-like probes or through a rigid sheath mounted on the fingertip. These rigid …

Rats and mice palpate objects with their whiskers to generate tactile sensations. This form of
active sensing endows the animals with the capacity for fast and accurate texture …

Firing of place cells in the exploring rat conveys doubly coded spatial information: both the
rate of spikes and their timing relative to the phase of the ongoing field theta oscillation are …

The spatial distribution of learned information within a sensory system can shed light on the
brain mechanisms of sensory–perceptual learning. It has been argued that tactile memories …

In the somatosensory nerves, the tactile perception of texture is driven by spatial and
temporal patterns of activation distributed across three populations of afferents. These …

The neural mechanisms behind active and passive touch are not yet fully understood. Using
fMRI we investigated the brain correlates of these exploratory procedures using a roughness …

Jiang, Wan, François Tremblay, and C. Elaine Chapman. Neuronal encoding of texture
changes in the primary and the secondary somatosensory cortical areas of monkeys during …

The present experiments were designed to determine the ability of humans to estimate the
roughness of raised dot surfaces using passive touch (subject immobile, surfaces scanned …