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. Author manuscript; available in PMC: 2008 Mar 6.
Published in final edited form as: Neuroscience. 2003;118(1):135–144. doi: 10.1016/S0306-4522(02)00768-6

Fig. 3.

Fig. 3

Responses in tectal cells evoked by muscarinic receptor activation. Application of carbachol (cch; 100 μM), after desensitization of nicotinic ACL receptors, produced four different responses: an outward membrane current (A1, 57% of the cells), an increase in the frequency and amplitude of sPSCs superimposed upon an outward current (B1, 6% of total recordings), a decrease in the frequency and amplitude of sPSCs (C1, 5% of total recordings) or an increase in the frequency and amplitude of sPSCs (D1, 3% of total recordings). Carbachol did not induce any response in 30% of the cells. Arrows in A1, B1 and C1 indicate areas of traces displayed at a faster time scale prior to drug application (A2, B2 and C2) and during the peak period of the carbachol response (A3, B3 and C3).