Visuospatial and mathematical dysfunction in major depressive disorder and/or panic disorder: A study of parietal
Brady D Nelson1, Stewart A Shankman2
1a Department of Psychology , Stony Brook University , Stony Brook , NY , USA.
Cognition & Emotion
|February 25, 2015
Summary
Comorbid depression and anxiety impair visuospatial skills, while depression and anxiety alone or together affect mathematical abilities. This highlights parietal cortex involvement in internalizing disorders.
Area of Science:
- Neuroscience
- Cognitive Psychology
- Psychiatry
Background:
- The parietal cortex is vital for visuospatial and mathematical functions.
- Parietal dysfunction is linked to depression, but its role in anxiety and comorbid conditions is unclear.
Purpose of the Study:
- To investigate parietal cortex function in major depressive disorder (MDD), panic disorder (PD), and comorbid MDD/PD.
- To assess visuospatial processing and mathematical abilities in these groups compared to controls.
Main Methods:
- Neuropsychological testing of visuospatial processing (Judgement of Line Orientation - JLO) and mathematical abilities (Wide Range Achievement Test - WRAT Arithmetic).
- Comparison of performance between MDD, PD, comorbid MDD/PD, and healthy control groups.
Main Results:
- Comorbid MDD/PD showed significantly reduced performance on the JLO task.
- All psychopathological groups (MDD, PD, MDD/PD) exhibited decreased performance on WRAT Arithmetic.
- Findings were independent of other comorbidities, medication, or symptom severity.
Conclusions:
- Comorbid depression and anxiety are associated with visuospatial processing deficits.
- Mathematical deficits are evident across depression and/or anxiety disorders.
- These results suggest parietal dysfunction in internalizing psychopathology.
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