Kinesthetic but not visual imagery assists in normalizing the CNV in Parkinson's disease.

Full Abstract

OBJECTIVE:
This study investigated whether kinesthetic and/or visual imagery could alter the contingent negative variation (CNV) for patients with Parkinson's disease (PD).

METHODS:
The CNV was recorded in six patients with PD and seven controls before and after a 10min block of imagery. There were two types of imagery employed:
kinesthetic and visual, which were evaluated on separate days.

RESULTS:
The global field power (GFP) of the late CNV did not change after the visual imagery for either group, nor was there a significant difference between the groups. In contrast, kinesthetic imagery resulted in significant group differences pre-, versus post-imagery GFPs, which was not present prior to performing the kinesthetic imagery task. In patients with PD, the CNV amplitudes post-, relative to pre-kinesthetic imagery, increased over the dorsolateral prefrontal regions and decreased in the ipsilateral parietal regions. There were no such changes in controls.

CONCLUSIONS:
A 10-min session of kinesthetic imagery enhanced the GFP amplitude of the late CNV for patients but not for controls.

SIGNIFICANCE:
While the study needs to be replicated with a greater number of participants, the results suggest that kinesthetic imagery may be a promising tool for investigations into motor changes, and may potentially be employed therapeutically, in patients with Parkinson's disease.

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Author information

Author/s: Lim, Vanessa K (VK); Polych, Melody A (MA); Holländer, Antje (A); Byblow, Winston D (WD); Kirk, Ian J (IJ); Hamm, Jeff P (JP);

Affiliation: Department of Psychology, Research Centre for Cognitive Neuroscience, The University of Auckland, Private Bag 92019, Auckland, New Zealand. v.lim(-atsign-)auckland.ac.nz

Journal and publication information

Publication Type: Journal Article; Research Support, Non-U.S. Gov't

Journal: Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology (Clin Neurophysiol), published in Netherlands. (Language: eng)

Reference: 2006-Oct; vol 117 (issue 10) : pp 2308-14

Dates: Created 2006/09/14; Completed 2006/12/15; Revised 2008/09/10;

PMID: 16890482, status: MEDLINE (last retrieval date: 12/26/2008)

Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.

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MeSH headings (categories)

This article was linked to the MESH Headings shown below.

Aged
Aged, 80 and over
Brain - physiopathology
Electroencephalography
Electromyography
Evoked Potentials, Auditory - physiology

Female
Humans
Imagination - physiology
Male
Parkinson Disease - physiopathology
Psychomotor Performance - physiology

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