Modulation of the postural effects of cognitive load by hypnotizability

被引：9

作者：

Santarcangelo, Enrica Laura ^{[1
]}

Scattina, E. ^{[1
]}

Carli, G. ^{[2
]}

Balocchi, R. ^{[3
]}

Macerata, A. ^{[1
,3
]}

Manzoni, D. ^{[1
]}

机构：

[1] Univ Pisa, Dept Human Physiol, I-56127 Pisa, Italy

[2] Univ Siena, Dept Physiol, I-53100 Siena, Italy

[3] CNR, Inst Clin Physiol, Pisa, Italy

来源：

EXPERIMENTAL BRAIN RESEARCH | 2009年 / 194卷 / 02期

关键词：

Hypnotizability; Attention; Cognitive load; Postural control; Entropy; Variability; HYPNOTIC-SUSCEPTIBILITY; DUAL-TASKING; ATTENTION; STABILITY; IMAGERY; STANCE; NORMS; SCALE;

D O I：

10.1007/s00221-009-1740-6

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

Aim of the experiment was to study whether cognitive load affects postural control more in low (Lows) than in highly hypnotizable (Highs) subjects due to the latter's greater attentional abilities. Standing Highs and Lows underwent an experimental session (closed eyes) consisting of a basal condition and of mental computation in an easy (stable support) and a difficult (unstable support) postural condition. Variability [standard deviation (SD)] and complexity [sample entropy (SampEn)] of the movement of the centre of pressure (CoP), its mean velocity (Velocity), the area swept by the CoP (Area) and the ratio between the CoP trajectory length and area [length for surface (LFS)] were measured. Few hypnotizability-related differences were detected (reduction in the Highs' SD and increases in the Lows' LFS in the difficult postural condition). Thus, the hypnotizability-related postural differences observed in previous studies during sensory alteration could not be accounted mainly by attentional abilities.

引用

页码：323 / 328

页数：6

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