Frequency of anatomical and physiological characteristics in cholinergic and noncholinergic cell groups1-a
| n | All cells | Nb+/ChAT+cells | Nb+/ChAT−cells | Statistic: |
|---|---|---|---|---|
| 52 | 12 | 40 | χ2(df) | |
| Anatomy | ||||
| Area | 0.34 (1) | |||
| MCPO | 34 | 7 | 27 | |
| SI | 18 | 5 | 13 | |
| Shape | 0.59 (1) | |||
| Oval–fusiform (Bipolar) | 21 | 6 | 15 | |
| Polygonal (Multipolar) | 31 | 6 | 25 | |
| Size | 6.61 (1)** | |||
| Small (≤ 15 μm) | 11 | 0 | 11 | |
| Medium–large (> 15 μm) | 41 | 12 | 29 | |
| Physiology | ||||
| Pattern | 10.84 (2)** | |||
| Tonic | 23 | 3 | 20 | |
| Tonic/burst | 20 | 9 | 11 | |
| Tonic/cluster | 9 | 0 | 9 | |
| Response to stimulation (PSH1-b) | 5.26 (1)* | |||
| Increase (“on”) | 43 | 12 | 31 | |
| Decrease (“off”) | 9 | 0 | 9 | |
| Unit rhythmicity during stimulation (ACH1-c) | 6.91 (1)** | |||
| Rhythmic | 22 | 9 | 13 | |
| Not rhythmic | 30 | 3 | 27 | |
| Unit-EEG cross-correlation during stimulation (STA1-d) | 10.13 (1)** | |||
| Correlated | 23 | 10 | 13 | |
| Not correlated | 29 | 2 | 27 |
↵F1-a Frequencies (n, number of cells) for the two groups are presented and compared, using the likelihood ratio χ2 statistic; *p < 0.05; **p < 0.01; ***p < 0.001.
↵F1-b Classification based on peristimulus histogram (PSH) measure of average discharge rate.
↵F1-c Based on autocorrelation histogram (ACH) measure of rhythmicity.
↵F1-d Based on spike-triggered average (STA) measure of unit-to-EEG cross-correlation (retrosplenial cortex).