A closer look at mechanisms underlying perceptual differences in Parkinson’s freezers and non-freezers

Highlights • PD-FOG demonstrated both visuospatial and self-motion perceptual impairments beyond that of PD-nonFOG (experiment 1). • PD-FOG had a mismatch between actual and imagined movement that was amplified over greater distances (experiment 2). • Imagery error predicted distance estimation erro...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	Neuroscience 2014-08, Vol.274, p.162-169
Hauptverfasser:	Ehgoetz Martens, K.A, Ellard, C.G, Almeida, Q.J
Format:	Artikel
Sprache:	eng
Schlagworte:	Aged Biological and medical sciences Degenerative and inherited degenerative diseases of the nervous system. Leukodystrophies. Prion diseases Female freezing of gait Gait Disorders, Neurologic - etiology Gait Disorders, Neurologic - psychology Humans Imagination Judgment Male Medical sciences Motion Perception motor imagery Nervous system (semeiology, syndromes) Nervous system as a whole Neurology Parkinson Disease - complications Parkinson Disease - psychology Parkinson’s disease perception sensory feedback Space Perception Spatial Processing Walking
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	Highlights • PD-FOG demonstrated both visuospatial and self-motion perceptual impairments beyond that of PD-nonFOG (experiment 1). • PD-FOG had a mismatch between actual and imagined movement that was amplified over greater distances (experiment 2). • Imagery error predicted distance estimation errors while walking. • This relationship suggests that self-motion deficits are independent of visuospatial impairments in PD-FOG.
ISSN:	0306-4522 1873-7544
DOI:	10.1016/j.neuroscience.2014.05.022