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Is high hypnotizability a trouble in balance control?

Emanuele Caratelli¹, Manuel Menzocchi, Giancarlo Carli

¹Department of Physiology, University of Siena, Siena, Italy.

European Journal of Applied Physiology

|November 13, 2009

Summary

High hypnotizability (Highs) does not hinder balance control in demanding tasks. Highs adapt their postural control strategies, shifting from central to peripheral control as task difficulty increases.

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Area of Science:

Neuroscience
Cognitive Psychology
Human Physiology

Background:

Hypnotizability is a cognitive trait linked to unique physiological responses.
Individuals with high hypnotizability (Highs) show greater tolerance to altered sensory input during quiet stance compared to Lows.
Previous research suggests hypnotizability influences sensory processing and motor control.

Purpose of the Study:

To determine if high hypnotizability confers a disadvantage in complex postural tasks.
To investigate the postural control strategies employed by Highs and Lows during a challenging balance task.

Main Methods:

Sixteen Highs and 16 Lows performed a balance task on a seesaw platform.
Participants maintained balance with eyes open or closed.
Postural sway was quantified by inclination area and time.

Main Results:

No significant differences in overall postural sway (inclination area and time) were found between Highs and Lows.
Highs demonstrated superior performance when initiating weight shifts between legs.
This suggests Highs can adapt their balance control strategies effectively.

Conclusions:

High hypnotizability is not a disadvantage for balance control in demanding postural tasks.
Highs may shift from centrally driven to peripherally driven postural control as task difficulty increases.
Findings contribute to understanding the interplay between cognitive traits and motor control.