Dendritic spikes in Purkinje cells of the guinea pig cerebellum studied in vitro
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Dendritic spikes in Purkinje cells of the guinea pig cerebellum studied in vitro. / Hounsgaard, J.; Yamamoto, C.
In: Experimental Brain Research, Vol. 37, No. 2, 01.10.1979, p. 387-398.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Dendritic spikes in Purkinje cells of the guinea pig cerebellum studied in vitro
AU - Hounsgaard, J.
AU - Yamamoto, C.
PY - 1979/10/1
Y1 - 1979/10/1
N2 - Extracellular spikes were recorded simultaneously from dendrites and somata of Purkinje cells in thin cerebellar sections. Spontaneously occurring dendritic spikes were biphasic with the initial phase positive. Triphasic dendritic spikes with a large negative phase appeared during electrophoretic application of glutamate. In media containing procaine, tetrodotoxin, or high concentrations of KCl, negative dendritic spikes occurred whereas soma spikes were abolished. The negative dendritic spikes were suppressed by CoCl2 or MnCl2. Electrical stimulation elicited climbing fibre responses in somata and large negative waves in dendrites. Spikes of dendritic origin were different from those reflecting electrotonic spread of soma spikes. The relation between soma spikes and active dendritic spikes is discussed.
AB - Extracellular spikes were recorded simultaneously from dendrites and somata of Purkinje cells in thin cerebellar sections. Spontaneously occurring dendritic spikes were biphasic with the initial phase positive. Triphasic dendritic spikes with a large negative phase appeared during electrophoretic application of glutamate. In media containing procaine, tetrodotoxin, or high concentrations of KCl, negative dendritic spikes occurred whereas soma spikes were abolished. The negative dendritic spikes were suppressed by CoCl2 or MnCl2. Electrical stimulation elicited climbing fibre responses in somata and large negative waves in dendrites. Spikes of dendritic origin were different from those reflecting electrotonic spread of soma spikes. The relation between soma spikes and active dendritic spikes is discussed.
KW - Calcium spike
KW - Cerebellum
KW - Climbing fibre response
KW - Dendritic spike
KW - Purkinje cell
UR - http://www.scopus.com/inward/record.url?scp=0018702267&partnerID=8YFLogxK
U2 - 10.1007/BF00237721
DO - 10.1007/BF00237721
M3 - Journal article
C2 - 499394
AN - SCOPUS:0018702267
VL - 37
SP - 387
EP - 398
JO - Experimental Brain Research
JF - Experimental Brain Research
SN - 0014-4819
IS - 2
ER -
ID: 237700529