Protective Effects of Ginkgo biloba Extract EGb 761 against Noise Trauma-Induced Hearing Loss and Tinnitus Development

Table 1

Overview of parameter change EGb 761 versus vehicle control.

	Hearing threshold	Evoked rate	Mean BF	BF distrib.	Neuronal threshold	𝑄30	Response latency	Response duration
Nontinnitus animals
Before	—	↓	↑	↑	↓	↑	↓	—
After	↓; (acute & 1–7 d)	—	↑	↑	—	↑	↓	—
Tinnitus animals
Before	—	—	—	—	↑	↑	—	↓
After	—; (1 & 7 d)	—	—	—	↑	—	—	↑