Rey et al recorded local field potentials and neuron spikes from the human medial temporal lobe during a recognition task. Single-neuron responses were preceded by a global increase in theta oscillations and a local and stimulus-specific increase in gamma oscillations. The LFPs responses were correlated with conscious recognition and neuron spiking was time-locked to the LFPs. They suggest that theta reflects a global recognition signal whereas phase-locked of neurons to gamma reflects activation of local circuits that represent the recognized stimulus.
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Miller Lab
The Miller Lab uses experimental and theoretical approaches to study the neural basis of the high-level cognitive functions that underlie complex goal-directed behavior. ekmillerlab.mit.edu