More than a feeling: sensation from cortical stimulation.
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.
Nielsen
Kristina J
KJ
Systems Neurobiology Laboratories, The Salk Institute for Biological Studies, La Jolla, CA 92037, USA.
Callaway
Edward M
EM
D000200:Action Potentials / Q000502:physiology; D000818:Animals; D004644:Emotions / Q000502:physiology*; D008954:Models, Biological; D009474:Neurons / Q000502:physiology*; D010775:Photic Stimulation / Q000379:methods; D012677:Sensation / Q000502:physiology* / Q000528:radiation effects; D013003:Somatosensory Cortex / Q000166:cytology*