Abstract
Oscillatory neural activity in the frequency range of 20–70 Hz has been observed in various sensory and motor cortical areas in awake and anesthetized mammals (Freeman, 1978; Eckhorn et al., 1988; Gray and Singer, 1989; Engel et al., 1991; Murthy and Fetz, 1992; Kreiter and Singer, 1992; Singer, 1993). High-frequency oscillations in the visual cortex have been suggested to play a role in associating stimulus features and in segmentation of objects in the visual scene (Eckhorn et al., 1988; Gray et al., 1989). Synchronous 20–40 Hz oscillations of local field potentials (LFP) have also been observed in the sensorimotor cortex of behaving monkeys (Rougeul et al., 1979; Murthy and Fetz, 1992; Murthy et al., 1992; Sanes and Donoghue, 1993) and humans (Sheer, 1984; Ribary et al., 1991; Pfurtscheller and Neuper, 1992). In awake, behaving monkeys, synchronous LFP oscillations were found during performance of trained motor tasks (Sanes and Donoghue, 1993) as well as during less constrained exploratory movements of the arm and hand (Murthy and Fetz, 1992). This suggests that the oscillations may play a role in attention or facilitating interactions during sensorimotor integration.
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Murthy, V.N., Aoki, F., Fetz, E.E. (1994). Synchronous Oscillations in Sensorimotor Cortex of Awake Monkeys and Humans. In: Pantev, C., Elbert, T., Lütkenhöner, B. (eds) Oscillatory Event-Related Brain Dynamics. NATO ASI Series, vol 271. Springer, Boston, MA. https://doi.org/10.1007/978-1-4899-1307-4_24
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DOI: https://doi.org/10.1007/978-1-4899-1307-4_24
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