Tactile and Sensory Interactions

Sensory substitution reveals a manipulation bias

This study uses sensory substitution in deaf songbirds to show that visual feedback can drive vocal learning and reveal a bias for actions that provide feedback.

Constructing spatial perception through self-touch

This study investigates how motor and tactile information interact in spatial perception through robot-mediated self-touch experiments, finding stronger integration during active movements.

Harnessing Tactile Waves to Measure Skin-to-Skin Interactions

This paper introduces a method to measure skin-to-skin touch by detecting tactile waves using an accelerometer, showing sensitivity to touch tonicity and speed.

Data-driven classification of spectral profiles reveals brain region-specific plasticity

The paper uses MEG data to classify spectral profiles in congenitally blind and sighted individuals, revealing region-specific changes linked to adaptive brain plasticity.

Proprioception Has Limited Influence on Tactile Reference Frame Selection

The paper investigates how proprioception influences tactile reference frame selection when visual input is absent, finding that proprioceptive inputs can be overridden by novel inputs after posture changes.

Active palpation underlying shape perception is shaped by physiological thresholds and experience.

The paper shows that tactile perception of planar shapes relies on two movement strategies, influenced by physiological thresholds and experience.

Gradient of Tactile Properties in the Rat Whisker Pad

The paper examines the gradient of tactile properties in rat whiskers, finding a rostral-caudal gradient in sensitivity and function for texture discrimination and edge detection.

Materials in action: The look and feel of soft

The paper investigates whether visual static and dynamic stimuli can convey similar information about material softness as haptic perception.

Decoding representations of discriminatory and hedonic information during appetitive and aversive touch

This study uses fMRI and pattern component modeling to show that hedonic and discriminatory tactile information are represented separately in the brain, with hedonic touch linked to interoceptive and affective regions.

Tactile innervation densities across the whole body

The paper estimates tactile afferent fiber densities across the whole body using multiple methods and finds that the total number of tactile fibers is approximately 230,000 with regional variations.

External location of touch is constructed post-hoc based on limb choice

The paper shows that humans construct the external location of touch after determining which hand was stimulated, not automatically upon stimulus occurrence.

The anticipation and perception of affective touch in women with and recovered from Anorexia Nervosa

This study investigates tactile anhedonia in women with and recovered from Anorexia Nervosa, finding it persists as a trait and is linked to top-down anticipation rather than bottom-up interoceptive deficits.

Performance and behavioral flexibility on a complex motor task depend on available sensory inputs in early blind and sighted short-tailed opossums.

This study examines how early blindness affects sensorimotor behavior and sensory reliance in short-tailed opossums, finding increased tactile accuracy but reduced flexibility when whiskers are trimmed.

Temporal patterns in electrical nerve stimulation: burst gap code shapes tactile frequency perception

The paper shows that burst gap coding, previously observed in mechanical stimulation, also applies to electrical nerve stimulation, influencing tactile frequency perception through temporal spike patterns.

Deep and superficial layers of the primary somatosensory cortex are critical for whisker-based texture discrimination in mice

The paper investigates the role of different cortical layers in texture discrimination using a 2AFC paradigm in mice, finding that both deep and superficial layers are critical for this task.

The organizational principles of de-differentiated topographic maps in somatosensory cortex

This study examines de-differentiated topographic maps in somatosensory cortex of younger and older adults using fMRI and behavioral tests, finding that reduced representational similarity and altered cortical distances correlate with specific behavioral changes.

Multifractal signatures of perceptual processing on anatomical sleeves of the human body

The paper investigates how multifractal fluctuations across anatomical sleeves support haptic perception via dynamic touch, showing their role in heaviness and length judgments.

Extensive individual differences of category information in ventral temporal cortex in the congenitally blind

The paper shows that category representations in VTC of congenitally blind individuals vary widely, with some showing similarity to sighted individuals despite group-level differences.

THE EFFECT OF SCANNING SPEED ON TEXTURE-ELICITED VIBRATIONS

This study examines how scanning speed affects texture-elicited vibrations on human fingertips, finding increased intensity and frequency shifts with higher speeds.

Haptic metameric textures

This study investigates how touch and vision process texture by comparing sensitivity to image statistics, finding that touch responds to lower-order statistics while vision detects higher-order ones.

Predictive whisker kinematics reveal context-dependent sensorimotor strategies

This study shows rats adapt their whisking behavior based on context, reallocating sensorimotor resources to maintain exploratory coverage.

Global broadcasting of local fractal fluctuations in a bodywide distributed system supports perception via effortful touch

The paper shows that fractal fluctuations in mechanical body movements support accurate perception of object properties through effortful touch.

Higher-order thalamic implication in the processing of bilateral sensory events

The paper investigates whether POm in the rodent thalamus encodes bilateral tactile events by examining responses to ipsilateral and contralateral whisker stimuli.

Online sensory feedback during active search improves tactile localization

This study shows that tactile localization improves when participants actively search for a touch with feedback, but not when searching without feedback, highlighting the role of closed-loop sensory feedback.

Principles of tactile search over the body

The paper investigates tactile search behavior over the body using a tactile analog of the visual search task, finding serial search processes and frequency-dependent performance.

Three-dimensional contact point determination and contour reconstruction during active whisking behavior of the awake rat

This study determines three-dimensional whisker-object contact points during active whisking in awake rats using mechanical signals and high-speed video.

Functional Connectivity Evoked by Orofacial Tactile Perception of Velocity

This study investigates how different tactile velocities affect functional connectivity in the brain using fMRI, finding velocity-specific patterns that may inform therapeutic strategies for stroke recovery.

Integrating somatosensory information over time

The paper investigates how humans integrate tactile information over time, finding that they accumulate sensory evidence up to 600 ms of a 1800 ms stimulus, favoring a bounded accumulation model over independent sampling.

Categorical representation from sound and sight in the ventral occipito-temporal cortex of sighted and blind

The paper investigates whether vision is necessary for categorical organization in the VOTC by comparing fMRI responses to sound categories in sighted and blind individuals.

Damage to the Right Insula Disrupts the Perception of Affective Touch

This study shows that right insula damage affects the perception of pleasant touch, with posterior lesions reducing contralateral sensitivity and anterior lesions reducing ipsilateral sensitivity.