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Line bisection performance in patients with personality disorders.
Wei Wang1, Yehan Wang, Jianhua Gu
1Division of Neurpsychology, Anhui Institute of Stereotactic Neurosurgery, Anhui Provincial Hospital, Hefei, The People's Republic of China. wang_wei@mail.hf.ah.cn
Cognitive Neuropsychiatry
|March 31, 2006
Summary
Patients with dependent personality disorder show leftward deviation on line bisection tasks, suggesting right hemisphere involvement. This finding aids in differentiating dependent personality disorder from other conditions.
Area of Science:
- Neuroscience
- Psychology
- Psychiatry
Background:
- Leftward deviation in line bisection is linked to right hemisphere activation.
- Right hemisphere functions are associated with dependency and attachment issues.
Purpose of the Study:
- To investigate if patients with dependent personality disorder exhibit leftward deviation on line bisection tasks.
- To explore the utility of line bisection in diagnosing dependent personality disorder.
Main Methods:
- Compared line bisection task performance in healthy volunteers and patients with schizotypal, antisocial, borderline, and dependent personality disorders.
- Utilized the Dimensional Assessment of Personality Pathology-Basic Questionnaire (DAPP-BQ) to assess personality traits.
Main Results:
- Dependent personality disorder patients demonstrated significant leftward bisection compared to healthy controls.
- Dependent personality disorder patients scored higher on Insecure Attachment and lower on Stimulus Seeking, Callousness, Intimacy Problems, and Conduct Problems.
Conclusions:
- Line bisection effectively differentiates dependent personality disorder from other personality disorders and healthy individuals.
- Line bisection may enhance diagnostic specificity for dependent personality disorder and indicate implicated brain regions.