Table 2.
Relationship of ASSR and N1 responses on passive blocks and ASSR and N1 attention effects to subject and tinnitus variables. The table entries are product-moment correlations reported for the 500 Hz and 5 kHz conditions separately.
| Subject variables∗ | Tinnitus variables | |||||||
|---|---|---|---|---|---|---|---|---|
| Age | 500 Hz threshold† | 5 kHz threshold† | Probe SPL | Loudness match (1 kHz) | Borg CR100 | THQ | Years with tinnitus | |
| 500 Hz condition | ||||||||
| ASSR TFP passive | 0.16 | 0.30 | 0.06 | 0.55‡ | 0.44 | −0.03 | 0.44 | −0.24 |
| N1 TFP passive | 0.10 | 0.24 | −0.14 | 0.07 | −0.25 | −0.52‡ | 0.04 | 0.14 |
| ASSR TFP ratio | −0.30 | 0.27 | 0.12 | 0.32 | 0.14 | 0.14 | 0.14 | 0.13 |
| N1 TFP diff. | −0.28 | 0.06 | 0.05 | 0.02 | −0.08 | −0.26 | 0.10 | 0.13 |
|
| ||||||||
| 5 kHz condition | ||||||||
| ASSR TFP passive | 0.25 | 0.11 | −0.19 | −0.01 | 0.24 | 0.19 | −0.40 | 0.05 |
| N1 TFP passive | 0.18 | 0.32 | 0.14 | −0.04 | 0.52 | 0.19 | −0.62‡ | 0.57 |
| ASSR TFP ratio | −0.13 | 0.02 | −0.20 | −0.04 | 0.43 | 0.23 | −0.41 | 0.27 |
| N1 TFP diff. | −0.07 | −0.10 | −0.18 | −0.06 | −0.46 | −0.11 | 0.46 | −0.43 |
*Tinnitus and control subjects combined.
†Left and right ears combined.
‡ P < 0.05.