Biology 202
Neurobiology and Behavior
Spring 2001

Yes, signals can start in the middle of the box, at all scales

Isolated Nervous System

Isolated Neuron

Isolated leech nervous system: activity in motor nerve (Brodfuehrer and Grobstein, see Variability in Brain Function and Behavior Isolated Aplysia neuron (Alving, B.O., J. Gen. Physiol. 51: 29-45, 1968; figure from Kandel, E.R., Cellular Basis of Behavior, W.H. Freeman, 1976, p 255)

Nothing mysterious, need only additional channels/gradients

Non-linearity (threshhold) phenomena can make system "noisy"

With THAT settled ...




| Course Home Page | Forum | Brain and Behavior | Serendip Home |

Send us your comments at Serendip

© by Serendip 1994- - Last Modified: Tuesday, 13-Feb-2001 09:03:04 EST