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. 2010 Mar 31;103(6):3287–3301. doi: 10.1152/jn.00024.2010

Fig. 7.

Fig. 7.

Two forms of inhibitory postsynaptic potential (IPSP) activity in layer Vb. A: nociceptive biphasic response in pyramid HT8. 1: EPSP arising from the SNS artifact and terminated by an IPSP at asterisk. The short duration of onset is likely associated with the first pulse of the SNS. 2: a large EPSP was uncovered by hyperpolarizing currents (first asterisk). B: bursting pyramidal neuron MT3 with an intermediate apical dendritic tuft in layer IIIc (asterisks) and interruption of SNS-evoked activity without an overt IPSP. 1: burst-mode firing was interrupted following SNS and EPSP activity and spike inactivation was apparent. 2: the 0.6 nA hyperpolarizing pulse occurred at the approximate reversal potential (asterisk; gray trace). Vertical pairs of arrows emphasize the period of response modulation in the post-SNS period. Scale bars: 100 μm.