Figure 1.
Case A1+ pure-tone audiogram for left-ear (filled symbols) and right-ear (open symbols) presentation.
Clinically-defined normal limits extend 25 dB above the dotted line, which indicates the average threshold from the ANSI standard.
Figure 2.
(A,B) Parasagittal sections through the left and right hemispheres. Left TG is atrophic and right TG is replaced by encephalomalacia (low signal intensity). Ischemic demyelination and retrograde degeneration within adjacent white matter regions appear as areas of high signal intensity. (C) Coronal section through the mid-portion of left and right TG and STG. (D) Horizontal section through left and right TG and STG. See text for image acquisition parameters.
Figure 3.
Comarison of detection and discrimination thresholds for Case A1+ vs. controls.
Table 1.
Summary of human lesion effects on loudness perception.