TY - JOUR
T1 - Cognitive and neuropsychiatric features of orthostatic tremor
T2 - A case-control comparison
AU - Benito-León, Julián
AU - Louis, Elan D.
AU - Puertas-Martín, Verónica
AU - Romero, Juan Pablo
AU - Matarazzo, Michele
AU - Molina-Arjona, José Antonio
AU - Domínguez-González, Cristina
AU - Sánchez-Ferro, Álvaro
N1 - Funding Information:
Dr. Benito-León is supported by the National Institutes of Health, Bethesda, MD, USA (NINDS # R01 NS39422 ), the Commission of the European Union (grant ICT-2011-287739 , NeuroTREMOR), and the Spanish Health Research Agency (grant FIS PI12/01602 ). Dr. Louis has received research support from the National Institutes of Health : NINDS # R01 NS042859 (principal investigator), NINDS # R01 NS086736 (principal investigator), NINDS # R01 NS085136 (principal investigator) and NINDS # R01 NS088257 (principal investigator). Dr. Romero is supported by the Commission of the European Union (grant ICT-2011-287739 , NeuroTREMOR). Dr. Alvaro Sanchez-Ferro is a research fellow from the Madrid-MIT M + Vision Consortium (Comunidad de Madrid) .
Funding Information:
Dr. Benito-León is supported by the National Institutes of Health, Bethesda, MD, USA (NINDS #R01 NS39422), the Commission of the European Union (grant ICT-2011-287739, NeuroTREMOR), and the SpanishHealth Research Agency (grant FIS PI12/01602). Dr. Louis has received research support from the National Institutes of Health: NINDS #R01 NS042859 (principal investigator), NINDS #R01 NS086736 (principal investigator), NINDS #R01 NS085136 (principal investigator) and NINDS #R01 NS088257 (principal investigator). Dr. Romero is supported by the Commission of the European Union (grant ICT-2011-287739, NeuroTREMOR). Dr. Alvaro Sanchez-Ferro is a research fellow from the Madrid-MIT M+Vision Consortium (Comunidad de Madrid).
Publisher Copyright:
© 2015 Elsevier B.V.
PY - 2016/2/15
Y1 - 2016/2/15
N2 - Introduction Evidence suggests that the cerebellum could play a role in the pathophysiology of orthostatic tremor. The link between orthostatic tremor and the cerebellum is of interest, especially in light of the role the cerebellum plays in cognition, and it raises the possibility that orthostatic tremor patients could have cognitive deficits consistent with cerebellar dysfunction. Our aim was to examine whether orthostatic tremor patients had cognitive deficits and distinct personality profiles when compared with matched controls. Methods Sixteen consecutive orthostatic tremor patients (65.7 ± 13.3 years) and 32 healthy matched controls underwent a neuropsychological battery and the Personality Assessment Inventory. In linear regression models, the dependent variable was each one of the neuropsychological test scores or the Personality Assessment Inventory subscales and the independent variable was orthostatic tremor vs. control. Results Adjusted for age in years, sex, years of education, comorbidity index, current smoker, and depressive symptoms, diagnosis (orthostatic tremor vs. healthy control) was associated with poor performance on tests of executive function, visuospatial ability, verbal memory, visual memory, and language tests, and on a number of the Personality Assessment Inventory subscales (somatic concerns, anxiety related disorders, depression, and antisocial features). Older-onset OT (> 60 years) patients had poorer scores on cognitive and personality testing compared with their younger-onset OT counterparts. Conclusion Orthostatic tremor patients have deficits in specific aspects of neuropsychological functioning, particularly those thought to rely on the integrity of the prefrontal cortex, which suggests involvement of frontocerebellar circuits. Cognitive impairment and personality disturbances could be disease-associated nonmotor manifestations of orthostatic tremor.
AB - Introduction Evidence suggests that the cerebellum could play a role in the pathophysiology of orthostatic tremor. The link between orthostatic tremor and the cerebellum is of interest, especially in light of the role the cerebellum plays in cognition, and it raises the possibility that orthostatic tremor patients could have cognitive deficits consistent with cerebellar dysfunction. Our aim was to examine whether orthostatic tremor patients had cognitive deficits and distinct personality profiles when compared with matched controls. Methods Sixteen consecutive orthostatic tremor patients (65.7 ± 13.3 years) and 32 healthy matched controls underwent a neuropsychological battery and the Personality Assessment Inventory. In linear regression models, the dependent variable was each one of the neuropsychological test scores or the Personality Assessment Inventory subscales and the independent variable was orthostatic tremor vs. control. Results Adjusted for age in years, sex, years of education, comorbidity index, current smoker, and depressive symptoms, diagnosis (orthostatic tremor vs. healthy control) was associated with poor performance on tests of executive function, visuospatial ability, verbal memory, visual memory, and language tests, and on a number of the Personality Assessment Inventory subscales (somatic concerns, anxiety related disorders, depression, and antisocial features). Older-onset OT (> 60 years) patients had poorer scores on cognitive and personality testing compared with their younger-onset OT counterparts. Conclusion Orthostatic tremor patients have deficits in specific aspects of neuropsychological functioning, particularly those thought to rely on the integrity of the prefrontal cortex, which suggests involvement of frontocerebellar circuits. Cognitive impairment and personality disturbances could be disease-associated nonmotor manifestations of orthostatic tremor.
KW - Case-control study
KW - Cognitive impairment
KW - Orthostatic tremor
KW - Personality
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U2 - 10.1016/j.jns.2015.12.031
DO - 10.1016/j.jns.2015.12.031
M3 - Article
C2 - 26810532
AN - SCOPUS:84959019404
SN - 0022-510X
VL - 361
SP - 137
EP - 143
JO - Journal of the Neurological Sciences
JF - Journal of the Neurological Sciences
ER -