Oscillatory brain activity during a motor task.
نویسندگان
چکیده
Changes in spectral power in neuromagnetic fields associated with a manual task requiring a high level of sensorimotor integration (SMI) were investigated by analysing spontaneous, non-invasively recorded activity during motor preparation (WAIT), task performance (SMI), and control (REST) conditions in four healthy, right-handed human subjects. Neuromagnetic fields were recorded over the left sensorimotor cortex using a 37-channel instrument. In all subjects, a prominent narrow-band motor preparation rhythm centered near 19 Hz was consistently observed during the WAIT state. During SMI, mean relative increases in 26-30 Hz activity appeared in two of the subjects, paralleling gamma band enhancement recently observed during SMI in monkeys.
منابع مشابه
Short-term learning of a visually guided power-grip task is associated with dynamic changes in EEG oscillatory activity.
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ورودعنوان ژورنال:
- Neuroreport
دوره 4 12 شماره
صفحات -
تاریخ انتشار 1993