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Article: Interneurons of the dentate-hilus border of the rat dentate gyrus: morphological and electrophysiological heterogeneity.

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Mott DD; Turner DA; Okazaki MM; Lewis DV
J. Neurosci., 1997


Table 5.

Properties of afterhyperpolarizations

Cell type
Normally adapting Nonadapting Strongly adapting Granule cells
Fast afterhyperpolarization
 Amplitude, mV −7.2  ± 0.81 −14.4  ± 2.5 −12.2  ± 0.9 −11.2  ± 0.9
Slow afterhyperpolarization
 Amplitude, mV −1.7  ± 0.4 −0.5  ± 0.4 −3.9  ± 0.92,3 1.0  ± 0.34,5
 Number of  spikes in the burst 8  ± 1 9  ± 3 9  ± 2 8  ± 1

  • This table shows the amplitudes of the fast afterhyperpolarizations (fAHPs) after individual spikes and the slow afterhyperpolarizations (sAHPs) after bursts of spikes in the different adaptation classes of interneurons and in granule cells.1The amplitude of the fAHPs of both nonadapting and strongly adapting cells were greater than the fAHPs of normally adapting interneurons (p < 0.05). The sAHPs of strongly adapting cells were greater than the sAHPs of2normally adapting (p < 0.05) and3nonadapting (p < 0.01) interneurons. Granule cells did not have sAHPs and, in fact, the average potential after a burst in the granule cells was 1 mV depolarized [significantly different than the 4normally adapting, strongly adapting (p < 0.01) and 5nonadapting (p 0.05) interneurons]. The number of spikes in the bursts used for the measurements of the sAHP is given also.


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Inferred neuron-electrophysiology data values

Neuron Type Neuron Description Ephys Prop Extracted Value Standardized Value Content Source
Dentate gyrus hilar cell Dentate Gyrus normally adapting hilar interneuron fast AHP amplitude (mV) -7.2 ± 0.81 (16) -- Data Table
Dentate gyrus hilar cell Dentate Gyrus nonadapting hilar interneuron fast AHP amplitude (mV) -14.4 ± 2.5 (6) -- Data Table
Dentate gyrus hilar cell Dentate Gyrus strongly adapting hilar interneuron fast AHP amplitude (mV) -12.2 ± 0.9 (4) -- Data Table
Dentate gyrus granule cell fast AHP amplitude (mV) -11.2 ± 0.9 (16) 11.2 (mV) Data Table
Dentate gyrus hilar cell Dentate Gyrus normally adapting hilar interneuron slow AHP amplitude (mV) -1.7 ± 0.4 (16) -- Data Table
Dentate gyrus hilar cell Dentate Gyrus nonadapting hilar interneuron slow AHP amplitude (mV) -0.5 ± 0.4 (6) -- Data Table
Dentate gyrus hilar cell Dentate Gyrus strongly adapting hilar interneuron slow AHP amplitude (mV) -3.9 ± 0.92 (4) -- Data Table
Dentate gyrus granule cell slow AHP amplitude (mV) 1.0 ± 0.34 (16) 1.0 (mV) Data Table