Utilize este identificador para referenciar este registo: http://hdl.handle.net/10362/98759
Título: From thought to action
Autor: Bernardo Barahona-Corrêa, J.
Camacho, Marta
Castro-Rodrigues, Pedro
Costa, Rui
Oliveira-Maia, AJ
Palavras-chave: Action value
Goal-directed behavior
Habitual behavior
Orbitofrontal cortex
Uncertainty
Psychology(all)
Data: 2015
Resumo: The understanding of obsessive-compulsive disorder (OCD) has evolved with the knowledge of behavior, the brain, and their relationship. Modern views of OCD as a neuropsychiatric disorder originated from early lesion studies, with more recent models incorporating detailed neuropsychological findings, such as perseveration in set-shifting tasks, and findings of altered brain structure and function, namely of orbitofrontal corticostriatal circuits and their limbic connections. Interestingly, as neurobiological models of OCD evolved from cortical and cognitive to sub-cortical and behavioral, the focus of OCD phenomenology also moved from thought control and contents to new concepts rooted in animal models of action control. Most recently, the proposed analogy between habitual action control and compulsive behavior has led to the hypothesis that individuals suffering from OCD may be predisposed to rely excessively on habitual rather than on goal-directed behavioral strategies. Alternatively, compulsions have been proposed to result either from hyper-valuation of certain actions and/or their outcomes, or from excessive uncertainty in the monitoring of action performance, both leading to perseveration in prepotent actions such as washing or checking. In short, the last decades have witnessed a formidable renovation in the pathophysiology, phenomenology, and even semantics, of OCD. Nevertheless, such progress is challenged by several caveats, not least psychopathological oversimplification and overgeneralization of animal to human extrapolations. Here we present an historical overview of the understanding of OCD, highlighting converging studies and trends in neuroscience, psychiatry and neuropsychology, and how they influenced current perspectives on the nosology and phenomenology of this disorder.
Peer review: yes
URI: http://hdl.handle.net/10362/98759
DOI: https://doi.org/10.3389/fpsyg.2015.01798
ISSN: 1664-1078
Aparece nas colecções:NMS - Artigos em revista internacional com arbitragem científica

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