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. Author manuscript; available in PMC: 2012 Apr 12.
Published in final edited form as: Nat Rev Neurosci. 2011 Aug 10;12(9):509–523. doi: 10.1038/nrn3084

Figure 2.

Figure 2

Cortical LFP and behaviour. A, In this classical pen-chart recording, the correlation between behaviour and cortical EEG is difficult to detect visually under control conditions (top two traces, showing EEG and movement activity), but is greatly amplified by application of the muscarinic antagonist atropine (bottom two traces). B, A recent study showing a reduction of spontaneous fluctuations during whisking behaviour, clearly visible in intracranial LFP and membrane potential, but more difficult to detect visually in the surface EEG. C, In monkey V1, low-frequency (2–10Hz) power is reduced when attention is directed into the receptive field corresponding to the electrode site (att RF: red, green), and is increased by application of the muscarinic antagonist scopolamine (Scop: green, black) or when attention is directed to a different location (att away: blue, black). Part A is modified from Ref. 82, Part B from Ref. 7, Part C from recordings in the Thiele lab (Herrero, Delicato, Thiele: methods details in Ref. 183).