Table 2.
Mean sensitivity values (MD) in the FDT test
| Healthy controls (n = 12) | Parents (n = 13) | Schizophrenic patients (n = 13) | P-value | |
|---|---|---|---|---|
| Global FDT – MD | 28.00 (0.91) | 25.52 (0.76) | 23.44 (1.14) | Control vs schizophrenic P = 0.02 Control vs parent P = 0.037 Schizophrenic vs parent P = 0.129 |
| FDT – MD: decussating fibers | 28.25 (0.87) | 25.70 (0.80) | 23.56 (1.18) | P = 0.910† |
| FDT – MD: nondecussating fibers | 27.76 (0.98) | 25.33 (0.84) | 23.32 (1.15) | |
| FDT – MD: right hemisphere | 28.21 (0.86) | 25.97 (0.71) | 23.76 (1.00) | P = 0.715† |
| FDT – MD: left hemisphere | 27.86 (0.91) | 25.14 (0.90) | 23.18 (1.31) |
Notes: The unit of measurement for MD is decibel (dB). MD = sensitivity of hemispheres. Data are presented as means, with standard deviations in parentheses.
†
P values are for interactions (fiber type × group and hemisphere × group).
Abbreviations: FDT, frequency doubling technology; MD, mean deviation.