Manipulation of Auditory Inputs as Rehabilitation Therapy for Maladaptive Auditory Cortical Reorganization

Figure 2

Schematic figures of neural activity elicited by a test stimulus (TS) and band-eliminated noise (BEN). Dark and light gray areas represent neural activities elicited solely by TS and solely by BEN, respectively. Black areas represent overlapped neural activities that can be activated by both TS and BEN. Since the black areas had already been activated by continuous BEN when TS was presented, the dark gray areas represent the neural activity elicited by the onset of TS. Left graphs (a and c) show sharp frequency tuning as indicated by narrow frequency distributions and right graphs (b and d) show broadened frequency tuning as indicated by rather wide frequency distributions. The overlapped areas (black areas) were more pronounced in broadened frequency tuning than in sharp frequency tuning (modified from [47]).

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