The effect of walking demands on accuracy and brain activation levels during the modified Stroop task

Singh, Devashish; Chaparro, Gioella

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https://hdl.handle.net/2142/99980 Copy

Description

Title

The effect of walking demands on accuracy and brain activation levels during the modified Stroop task

Author(s)

• Singh, Devashish
• Chaparro, Gioella

Contributor(s)

Hernandez, Manuel

Issue Date

2018-04

Keyword(s)

• Kinesiology
• Stroop
• fNIRS
• Treadmill
• Dual Tasking
• Fall Prevention

Abstract

The purpose of this experiment is to understand the changes in the brain that occur when doing a task and what happens to the brain when an additional task is undertaken simultaneously. The way this experiment will be done is by having patients do the modified Stroop task, which itself is made of four parts: the neutral task where a color is identified, the congruent task where a word in the same color is identified, the incongruent task where the word is identified in a situation where the color doesn’t match the word and the mixed task where the patient switches between naming the color and the task given a cue. These tasks are done twice, once standing and once while walking on a self-paced treadmill. The data in this task will be measured via the accuracy in their identification of the word or color and neuroimaging via a functional near-infrared spectroscopy (FNIRS) system which records relative values of oxygenated and deoxygenated hemoglobin concentrations, showing areas in the prefrontal cortex (PFC) that are activated during the performance of a task, based on the principle of neurovascular coupling. From this data, I plan to evaluate the effect of walking versus standing on the associations between task accuracy and PFC activation changes during the four different parts of the Stroop task, which provide a natural gradation of executive function demands.

Type of Resource

image

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http://hdl.handle.net/2142/99980

Copyright and License Information

• Copyright 2018 Devashish Singh
• Copyright 2018 Gioella Chaparro

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