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Persistent attentional dysfunction in remitted bipolar disorder
K E Wilder-Willis1, K W Sax, H L Rosenberg
1Bipolar and Psychotic Disorders Research Program, Department of Psychiatry, University of Cincinnati College of Medicine, OH 45267-0559, USA.
Bipolar Disorders
|May 3, 2001
Summary
Clinically stable individuals with bipolar disorder (BPD) exhibit attentional deficits, particularly in reaction time and fine motor skills, compared to healthy individuals. These impairments persist even when accounting for psychiatric symptoms and medication effects.
Area of Science:
- Neuroscience
- Psychiatry
- Cognitive Psychology
Background:
- Attentional dysfunction is frequently observed in acute mood episodes of bipolar disorder (BPD).
- Limited research exists on attentional deficits in BPD patients during periods of clinical stability.
- Understanding persistent cognitive impairments is crucial for comprehensive BPD management.
Purpose of the Study:
- To investigate attentional disturbances in clinically stable individuals with BPD.
- To compare the attentional performance of stable BPD patients with healthy controls.
- To determine if attentional deficits are present independent of current mood symptoms and medication.
Main Methods:
- Employed the Degraded Stimulus Continuous Performance Test (DSCPT), Digit Span Distractibility Test (DSDT), and Grooved Pegboard Test (GPT).
- Included 14 patients diagnosed with BPD and 12 healthy comparison subjects.
- Assessed psychiatric symptoms using the Young Mania Rating Scale and Scale for the Assessment of Positive Symptoms, and medication side effects with the Simpson Rating Scale.
Main Results:
- BPD patients demonstrated significantly slower response times on the DSCPT and GPT compared to controls.
- A trend towards impaired perceptual sensitivity was noted in BPD patients on the DSCPT.
- No significant differences were found between groups on the DSDT; performance was not linked to symptom severity or medication.
Conclusions:
- Clinically stable BPD patients may experience persistent impairments in fine motor skills and reaction time.
- Attentional task performance deficits in BPD could be partly attributed to underlying motor skill impairments.
- These findings highlight the need to consider motor and cognitive functions in the long-term management of bipolar disorder.