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Personality profile in essential tremor: a case-control study.

Mary Ann Thenganatt¹, Elan D Louis

¹Department of Neurology, College of Physicians and Surgeons, Columbia University, New York, NY, USA.

Parkinsonism & Related Disorders

|June 19, 2012

Summary

This summary is machine-generated.

Essential tremor (ET) patients exhibit higher harm avoidance (HA), a personality trait linked to worry and fatigue. This study confirms elevated HA in ET cases, particularly in anticipatory worry and fatigability domains.

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Area of Science:

Neuroscience
Psychiatry
Behavioral Science

Background:

Essential tremor (ET) is associated with neuropsychiatric conditions like depression and anxiety.
Previous research indicated higher harm avoidance (HA) scores in ET patients.
This study aimed to replicate and expand upon prior findings regarding personality traits in ET.

Purpose of the Study:

To determine if higher harm avoidance (HA) scores in essential tremor (ET) patients could be replicated in a new sample.
To analyze specific sub-scores of HA (HA1-HA4) to better understand differences between ET cases and controls.
To investigate personality differences in ET beyond previously observed traits.

Main Methods:

The study evaluated 60 ET cases and 35 controls.
Participants completed the Tridimensional Personality Questionnaire (TPQ).
The TPQ assesses personality domains including harm avoidance (HA), novelty seeking (NS), and reward dependence (RD).

Main Results:

Total HA scores were marginally higher in ET cases compared to controls (p=0.09).
After adjusting for age and gender, ET cases showed significantly higher total HA scores (p=0.03).
Specific HA sub-scores, HA1 (anticipatory worry/pessimism) and HA4 (fatigability/asthenia), were significantly elevated in ET cases (p=0.04 and p=0.01, respectively).

Conclusions:

ET cases exhibit a distinct personality profile characterized by increased harm avoidance (HA).
The elevated HA in ET appears most pronounced in domains related to worry and fatigue.
The pre-morbid or co-morbid nature of this personality profile in ET remains undetermined.