Article: The corticostriatal input to giant aspiny interneurons in the rat: a candidate pathway for synchronising the response to reward-related cues.
Table 1Comparison of cellular properties of giant aspiny interneurons with spiny projection neurons recorded in vivo
All measurements were made without the injection of holding current. Values are mean±S.D. Significant differences between giant aspiny interneurons and spiny projection neurons were indicated by * (p<0.05), ** (p<0.01), *** (p<0.001).
|Cellular property||Giant aspiny interneurons (n=13)||Spiny projection neurons (n=13)|
|Firing properties||Rate (Hz)||3.0±1.5*||1.5±2.0|
|Action potentials||Firing threshold (mV)||−53.1±4.6||−51.7±3.7|
|Duration (ms)||0.76±0.16 **||0.58±0.12|
|Amplitude (mV)||72.3±9.3 *||81.6±11.7|
|AHP amplitude (mV)||7.1±3.0||9.2±2.7|
|Response to current injection||Hyperpolarisation-induced sag||yes||no|
|Input resistance (MΩ)||31.1±13.6||37.2±9.6|
|Membrane potential fluctuations||Average hyperpolarised potential (μ1; mV)||−58.9±5.2 ***||−86.5±4.9|
|Average depolarised potential (μ2; mV)||−56.7±5.2 ***||−68.3±7.6|