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Related Concept Videos

Major Somatic Sensory Pathways01:28

Major Somatic Sensory Pathways

Sensory impulses related to touch, pressure, vibration, and proprioception from various body parts, such as the limbs, trunk, neck, and posterior head, travel to the cerebral cortex through the posterior column-medial lemniscus pathway. The pathway’s name derives from the two white-matter tracts that convey the impulses: the spinal cord's posterior column and the brainstem's medial lemniscus. First-order sensory neurons extend their axons into the spinal cord, forming the posterior columns...
Somatic Spinal Reflexes01:22

Somatic Spinal Reflexes

Somatic spinal reflexes are rapid, involuntary muscular responses to external stimuli that involve the somatic musculature and the spinal cord.
One of the most well-known somatic spinal reflexes is the stretch reflex, which is activated by the sudden stretching of a muscle. This reflex involves the activation of specialized sensory receptors called muscle spindles, which are located in the muscle tissue and detect changes in the length and speed of muscle contractions. When a muscle is suddenly...
Nonconscious Mimicry01:13

Nonconscious Mimicry

Nonconscious mimicry occurs when individuals alter their mannerisms to match the behaviors and expressions of those nearby, without intention.
Sensory Perception: Organization of the Somatosensory System01:11

Sensory Perception: Organization of the Somatosensory System

The somatosensory system is the central and peripheral nervous system component that senses and processes touch, pressure, pain, temperature, and body position or proprioception. The process of sensation takes place at three levels:
The receptor level:
The receptor level is the first stage of sensation. It involves the detection of a stimulus by specialized sensory receptors. The stimulus must arrive within the receptor's receptive field. Next, the receptor converts the energy of the stimulus...
Somatosensation01:33

Somatosensation

The somatosensory system relays sensory information from the skin, mucous membranes, limbs, and joints. Somatosensation is more familiarly known as the sense of touch. A typical somatosensory pathway includes three types of long neurons: primary, secondary, and tertiary. Primary neurons have cell bodies located near the spinal cord in groups of neurons called dorsal root ganglia. The sensory neurons of ganglia innervate designated areas of skin called dermatomes.
Somatosensory, Motor, and Association Cortex01:23

Somatosensory, Motor, and Association Cortex

The somatosensory cortex in the parietal lobes is crucial for interpreting sensory data such as touch, temperature, and proprioception. The somatosensory cortex, situated in the parietal lobes, plays a vital role in interpreting sensory information like touch, temperature, and proprioception—awareness of body position. This specialized brain region features an organized structure wherein neurons at the top primarily process sensations originating from the lower body. In contrast, those at the...

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Bouncing Ball with a Uniformly Varying Velocity in a Metronome Synchronization Task
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Published on: September 21, 2017

Somatosensory driven interpersonal synchrony during rhythmic sway.

George Sofianidis1, Vassilia Hatzitaki, George Grouios

  • 1Laboratory of Motor Control and Learning, Department of Physical Education and Sport Sciences, Aristotle University of Thessaloniki, Thessaloniki 541 24, Greece.

Human Movement Science
|June 30, 2012
PubMed
Summary

Haptic contact enhances interpersonal synchrony during rhythmic swaying. Dance expertise further improves this coordination, especially when integrating sensory feedback for better rhythmic entrainment.

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Area of Science:

  • Movement science
  • Neuroscience
  • Human-computer interaction

Background:

  • Synchrony emerges during shared rhythmic activities via sensory feedback.
  • Interpersonal synchrony is crucial for coordinated actions and social bonding.

Purpose of the Study:

  • To investigate interpersonal synchrony mediated by fingertip contact during rhythmic swaying.
  • To examine the influence of traditional dance expertise on this synchrony.

Main Methods:

  • Sixty participants (dancers and novices) performed rhythmic swaying in couples.
  • Center of pressure (CoP) displacement signals were analyzed using cross-spectral analysis.
  • Swaying was either self-paced or metronome-paced at 0.25Hz.

Main Results:

  • Fingertip contact decreased frequency differences and increased coherence during self-paced sway.
  • Haptic contact led to in-phase coordination (0°-20°) in self-paced conditions.
  • Expert dancers improved synchrony with haptic contact during metronome-paced sway.

Conclusions:

  • Haptic contact stabilizes interpersonal coordination dynamics during rhythmic swaying.
  • The effectiveness of haptic feedback for synchrony depends on expertise in integrating sensory information.