• Neurosci Biobehav Rev · Apr 2015

    Review

    Associative fear learning and perceptual discrimination: a perceptual pathway in the development of chronic pain.

    • Jonas Zaman, Johan W S Vlaeyen, Lukas Van Oudenhove, Katja Wiech, and Ilse Van Diest.
    • Research Group Health Psychology, KU Leuven, Tiensestraat 102, Box 3726, 3000 Leuven, Belgium; Center of Excellence on Generalization Research, KU Leuven, Tiensestraat 102, Box 3726, 3000 Leuven, Belgium. Electronic address: Jonas.Zaman@ppw.kuleuven.be.
    • Neurosci Biobehav Rev. 2015 Apr 1;51:118-25.

    AbstractRecent neuropsychological theories emphasize the influence of maladaptive learning and memory processes on pain perception. However, the precise relationship between these processes as well as the underlying mechanisms remain poorly understood; especially the role of perceptual discrimination and its modulation by associative fear learning has received little attention so far. Experimental work with exteroceptive stimuli consistently points to effects of fear learning on perceptual discrimination acuity. In addition, clinical observations have revealed that in individuals with chronic pain perceptual discrimination is impaired, and that tactile discrimination training reduces pain. Based on these findings, we present a theoretical model of which the central tenet is that associative fear learning contributes to the development of chronic pain through impaired interoceptive and proprioceptive discrimination acuity.Copyright © 2015 Elsevier Ltd. All rights reserved.

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