Voltage-sensitive dyes for monitoring multineuronal activity in the intact central nervous system.
Optical monitoring of activity provides new kinds of information about brain function. Two examples are discussed in this article. First, the spike activity of many individual neurons in small ganglia can be determined. Second, the spatiotemporal characteristics of coherent activity in the brain can be directly measured. This article discusses both general characteristics of optical measurements (sources of noise) as well as more methodological aspects related to voltage-sensitive dye measurements from the nervous system.
Wu
J Y
JY
Georgetown Institute of Cognitive and Computational Sciences, Georgetown University, Washington, DC 20007, USA.
Lam
Y W
YW
Falk
C X
CX
Cohen
L B
LB
Fang
J
J
Loew
L
L
Prechtl
J C
JC
Kleinfeld
D
D
Tsau
Y
Y
D000200:Action Potentials / Q000502:physiology; D000818:Animals; D001048:Aplysia / Q000502:physiology; D001921:Brain / Q000166:cytology / Q000502:physiology*; D002462:Cell Membrane / Q000502:physiology; D004396:Coloring Agents / Q000138:chemical synthesis; D004558:Electric Stimulation; D017952:Ganglia, Invertebrate / Q000166:cytology / Q000502:physiology*; D009474:Neurons / Q000502:physiology*; D013050:Spectrometry, Fluorescence / Q000295:instrumentation / Q000379:methods; D014426:Turtles / Q000502:physiology; D014793:Visual Cortex / Q000502:physiology
D004396:Coloring Agents