Informational and cognitive overload: Mechanisms triggering freezing of gait in patients with Parkinson's disease

• Grant number: 16/06292-1
• Support Opportunities: Scholarships in Brazil - Master
• Start date: July 01, 2016
• End date: June 30, 2018
• Field of knowledge: Health Sciences - Physical Education
• Principal Investigator: José Angelo Barela
• Grantee: Giovanna Gracioli Genoves
• Host Institution: Pró-Reitoria de Pós-Graduação e Pesquisa. Universidade Cruzeiro do Sul (UNICSUL). São Paulo , SP, Brazil

Abstract

Patients with Parkinson's disease (PD) may experience episodes of freezing of gait (FOG). Studies suggest that an increased attention demand concurrent to the execution of a motor task and/or a decline of proprioceptive information, from the lower limbs, together with an overload of visual information may trigger these episodes. However, several issues still need to be further examined to understand this behavior in patients with PD. This study will examine the use of visual information in PD patients that present and do not present episodes of FOG in different conditions of stimulus structure and cognitive engagement. Forty patients with PD will participate in this study, twenty diagnosed by the Association Brazil Parkinson as freezers and twenty as non-freezers. Participants will stand upright as still as possible inside a moving room. At first, the room will be oscillated in a periodic condition and then participants will perform a countdown with an regression interval of 3 values (100, 97, ..), periodic-dual task condition, Afterwards, detection of passive motion from the lower limbs will be examined with participants seated in a specially designed chair, used to evaluate the angular displacement of the ankle. Finally, the participants will return to the standing position inside the moving room and performer two other experimental conditions: complex periodic condition and non-periodic complex condition. Comparisons between groups will be performed in the respective tests.

Scientific publications

(The scientific publications listed on this page originate from the Web of Science or SciELO databases. Their authors have cited FAPESP grant or fellowship project numbers awarded to Principal Investigators or Fellowship Recipients, whether or not they are among the authors. This information is collected automatically and retrieved directly from those bibliometric databases.)

CRUZ, CAIO FERRAZ; FORTI BARELA, ANA MARIA; DONA, FLAVIA; GENOVES, GIOVANNA GRACIOLI; FERRAZ, HENRIQUE BALLALAI; CESAR DE AZEVEDO SILVA, SONIA MARIA; BARELA, JOSE ANGELO. Parkinson's disease delays predictable visual cue processing without affecting complex and unpredictable visual cue processing in postural control. Brain Research, v. 1751, JAN 15 2021. (16/06292-1)

GENOVES, GIOVANNA GRACIOLI; CRUZ, CAIO FERRAZ; DONA, FLAVIA; MIRANDA ANDRADE, TATIANE ALESSANDRA; FERRAZ, HENRIQUE BALLALAI; BARELA, JOSE ANGELO. Detection of passive movement in lower limb joints is impaired in individuals with Parkinson's disease. NEUROPHYSIOLOGIE CLINIQUE-CLINICAL NEUROPHYSIOLOGY, v. 51, n. 3, p. 279-285, JUN 2021. (16/06292-1)

CRUZ, CAIO F.; GENOVES, GIOVANNA G.; DONA, FLAVIA; FERRAZ, HENRIQUE B.; BARELA, JOSE A.. People in early stages of Parkinson's disease are able to intentionally reweight the use of visual information for postural control. PeerJ, v. 8, FEB 12 2020. (16/06292-1)