Table 3.
Adaptation in individual ribbon synapse and neural disorders
| Group | Subject | Low frequency |
High frequency |
||||
|---|---|---|---|---|---|---|---|
| s (%) | τ (s) | r2 | s (%) | τ (s) | r2 | ||
| Ribbon synapse | AN30 | −74.2 | 175.4 | 0.98 | −87 | 36.36 | 0.99 |
| AN32 | −32.6 | 91.74 | 0.62 | −100 | 46.08 | 0.99 | |
| AN33 | −97.2 | 180 | 0.97 | −100 | 1.31 | 1 | |
| Average | −65.1 | 147.1 | 0.98 | −94.8 | 27.32 | 0.99 | |
| Neural disorder | AN13 | −7.69 | 32.57 | 0.34 | −14 | 63.69 | 0.6 |
| AN34 | 9.53 | 0 | 0.01 | −89.4 | 91.74 | 0.98 | |
| AN36 | 0 | N/A | 1 | −63.5 | 77.52 | 0.68 | |
| AN40 | −18.1 | 180 | 0.11 | −57 | 25.13 | 0.72 | |
| AN2 | N/A | N/A | N/A | −89.7 | 71.43 | 0.97 | |
| Average | −5.03 | 180 | 0.09 | −58.4 | 55.87 | 0.93 | |
| Normal hearing limits | Upper | 16.43 | 180 | 0.69 | −6.51 | 55.25 | 0.42 |
| Lower | −32.8 | 83.33 | 0.97 | −54.4 | 48.08 | 1 | |
| Average | −11.17 | 39.06 | 0.87 | −24.85 | 40.16 | 0.99 | |
| Special controls | SNHL | 12.1 | 0.01 | 0.12 | −2.1 | 180 | 0.03 |
| Neuroma | −74 | 47.1 | 0.96 | −100 | 33.61 | 0.99 | |
s is the magnitude of adaptation to an infinitely long tone; τ is the time to achieve 63% of maximal adaptation (rate of adaptation).
SNHL = low-frequency sensorineural hearing loss.
Bold magnitudes are outside the range of normal hearing.