Research suggests that the symptoms of OCD may stem from abnormalities within the OCD circuit. During symptom provocation, various regions of this circuit show heightened activity. Furthermore, individuals with OCD exhibit significantly greater connectivity between the orbitofrontal cortex and other areas of the circuit compared to those without the disorder.

Abnormalities in the OCD Circuit

The 'OCD circuit' refers to a network of interconnected brain regions, which includes the orbitofrontal cortex. This circuit is responsible for influencing how the emotional value of stimuli is perceived and for guiding the selection of subsequent behavioral and cognitive responses.

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The orbitofrontal cortex, a region in the frontal lobe associated with learning and decision-making, is considered to have a critical function in Obsessive-Compulsive Disorder. In individuals with OCD, this brain area exhibits heightened activity, particularly when they are exposed to provoking stimuli, such as images of uncleanliness or disarray.

Role of the Orbitofrontal Cortex in OCD

Spielman, R. M., Jenkins, W. J., & Lovett, M. D. (2020, April 22). Psychology (2nd ed.). OpenStax. https://openstax.org/books/psychology-2e/pages/1-introduction

OpenStax Psychology (2nd ed.) Textbook

OCD Circuit

Based on the following case study, identify the specific brain region that is most likely showing heightened activity and explain why this activity is significant in the context of the individual's condition.

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