More than a feeling: sensation from cortical stimulation

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Changes in neuronal firing underlie sensation, but how many neurons are needed to perceive these activity shifts? Two new studies in Nature suggest that the experimental modulation of only a few neurons can influence perception.

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Figure 1: Stimulation protocols used in the new studies.

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Nielsen, K., Callaway, E. More than a feeling: sensation from cortical stimulation. Nat Neurosci 11, 10–11 (2008) doi:10.1038/nn0108-10

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