Hernandez-Martin Estefania, Marcano Francisco, Modroño Cristian, Janssen Niels, González-Mora Jose Luis
Department of Basic Medical Science (Physiology), Faculty of Health Sciences, Medicine Section, Universidad de La Laguna 38071, Spain.
Instituto de Tecnologías Biomédicas, Universidad de la Laguna, Spain.
Biomed Opt Express. 2020 Oct 5;11(11):6049-6067. doi: 10.1364/BOE.399907. eCollection 2020 Nov 1.
The present work shows the spatial reliability of the diffuse optical tomography (DOT) system in a group of healthy subjects during a motor imagery task. Prior to imagery task performance, the subjects executed a motor task based on the finger to thumb opposition for motor training, and to corroborate the DOT spatial localization during the motor execution. DOT technology and data treatment allows us to distinguish oxy- and deoxyhemoglobin at the cerebral gyri level unlike the cerebral activations provided by fMRI series that were processed using different approaches. Here we show the DOT reliability showing functional activations at the cerebral gyri level during motor execution and motor imagery, which provide subtler cerebral activations than the motor execution. These results will allow the use of the DOT system as a monitoring device in a brain computer interface.
本研究展示了扩散光学断层扫描（DOT）系统在一组健康受试者进行运动想象任务期间的空间可靠性。在进行想象任务之前，受试者执行了基于手指对拇指对掌的运动任务以进行运动训练，并在运动执行期间证实DOT的空间定位。与使用不同方法处理的功能磁共振成像（fMRI）系列所提供的大脑激活不同，DOT技术和数据处理使我们能够在脑回水平区分氧合血红蛋白和脱氧血红蛋白。在这里，我们展示了DOT的可靠性，即在运动执行和运动想象期间在脑回水平出现功能激活，其提供的大脑激活比运动执行更细微。这些结果将使DOT系统能够用作脑机接口中的监测设备。
