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Functional properties. Voltage response of a CR+ PG cell to 10 ms depolarizing pulses at different time intervals: (in ms) 15 (A), 30 (B), 50 (C), 90 (D), 310 (E). Note the full-size action potential marked by an arrow in trace A, resulting from random excitatory input. This behavior has been observed without exception in six cells.
