Beyond Sensory Coding: The Cognitive Context of Olfactory Neurodynamics
The local field potential from the mammalian olfactory system displays several oscillatory modes. Gamma oscillations (40-100 Hz) are associated with odor stimulation in the olfactory bulb (OB) and are enhanced with odor discrimination learning in a 2alternative choice task when odors are very similar. Beta oscillations (15-30 Hz) are associated with learning in a go/no-go task. These two oscillatory modes represent different cognitive states, and different networks appear to support them. Gamma oscillations are produced locally within the OB, while beta oscillations rely on bidirectional connections with the rest of the olfactory and limbic systems. These results help elucidate the contextdependent sensory representation seen at every neurophysiological level in the OB.
Gamma oscillations Beta oscillations Operant behavior Olfaction
Leslie M. Kay
Department of Psychology, Institute for Mind and Biology, The University of Chicago, Chicago,IL 60637, USA
国际会议
The Second International Conference on Cognitive Neurodynamics--2009(第二届国际认知神经动力学会议)
杭州
英文
85-90
2009-11-15（万方平台首次上网日期，不代表论文的发表时间）