The effect of different swallowing tasks on post-stroke dysphagia as observed by functional near-infrared spectroscopy
10.3760/cma.j.cn421666-20231128-00945
- VernacularTitle:基于近红外脑功能成像技术观察不同吞咽任务对脑卒中吞咽功能障碍患者皮质功能活动的影响
- Author:
Yalu SUN
1
;
Jiazheng SUN
;
Feixiang HUO
;
Hongrui ZHANG
;
Renlong ZHOU
;
Huijie SONG
;
Ranran YUAN
;
Zili XU
;
Xiang LI
Author Information
1. 济宁医学院附属医院康复医学科，济宁 272000
- Publication Type:Journal Article
- Keywords:
Functional near-infrared spectroscopy;
Stroke;
Dysphagia;
Swallowing
- From:
Chinese Journal of Physical Medicine and Rehabilitation
2025;47(1):25-30
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To explore the effect of different swallowing tasks on cortex activation and functional connectivity in stroke survivors with dysphagia using functional near-infrared spectroscopy (fNIRS).Methods:Thirty stroke survivors with dysphagia performed three different swallowing tasks: swallowing action observation (SO), swallowing action execution (SE), and swallowing action imagination (SI). During each task, fNIRS was used to document the brain concentrations of oxyhemoglobin and deoxyhemoglobin. Cortex activation (β value) and brain functional connectivity were assessed.Results:Compared with the resting state, the areas activated during the SO task included the left primary sensory cortex and the right prefrontal cortex. During the SE and SI tasks the left prefrontal cortex and the left motor cortex were activated as well. Compared with hemorrhagic stroke survivors, ischemic stroke survivors showed significantly greater activation of the right primary sensory cortex, the right motor cortex, and the left primary sensory cortex during the SE task. Functional connectivity during the SO, SE and SI tasks was significantly greater than in the resting state, with the average connectivity values during the SE task significantly higher than during the SI task.Conclusions:Stroke survivors with dysphagia exhibit increased activation in the prefrontal cortex and primary sensory cortex during different swallowing tasks. Such tasks can improve their brain functional connectivity.
