The cerebellar nodulus: perceptual and ocular processing of graviceptive input.
Ann Neurol
; 77(2): 343-7, 2015 Feb.
Article
em En
| MEDLINE
| ID: mdl-25515599
ABSTRACT
Current concepts postulate a decisive role of the cerebellar nodulus in the processing of otolith input. We hypothesized that nodular lesions abolish otolith-perceptual integration, predicting alignment of perceived direction of earth vertical with the z-axis of the head and not with gravity. In an 80-year-old patient with acute heminodular infarction, the subjective visual vertical deviated contralesionally by -21.1° when the patient was upright. After subtracting this offset, perceived vertical closely matched the patient's head orientation when the patient was roll-tilted. Otolith-ocular reflexes remained normal. This is the first report on abolished earth verticality perception in heminodular stroke and underlines the importance of the nodulus in spatial orientation.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Transtornos da Visão
/
Cerebelo
/
Acidente Vascular Cerebral
Tipo de estudo:
Etiology_studies
/
Prognostic_studies
Limite:
Aged80
/
Humans
/
Male
Idioma:
En
Revista:
Ann Neurol
Ano de publicação:
2015
Tipo de documento:
Article
País de afiliação:
Suíça