Piotr Bogorodzki1, Tomasz Wolak2,
Krzysztof Kochanek2, Ewa Piatkowska-Janko1, Piotr
Skarzynski2, Adam Pilka2, Jozef Kotus3,
Andrzej Czyzewski3
1Institute of Radioelectronics, Warsaw
University of Technology, Warsaw, Poland; 2Institute of Physiology
and Pathology of Hearing; 3Gdansk University of Technology,
Gdansk, Poland
Several
empirical studies have shown, that long lasting acoustic noise exposure
causes on humans effect called Temporary Hearing Threshold Shift (TTS). This
work presents results from 15 healthy subjects participating in a fMRI study
of TTS consisting of two runs: ⣣pre⣣ with silent GE EPI scanning and
⣣post⣣ identical to ⣣⣣pre⣣, but after 15min high volume noise
exposure (causing a mean 12 dB TTS effect). Group level analysis showed
activations in auditory cortex (T=13.3 in lh, and 10.45 in rh). A two-sample
T-test fails for post>pre contrast, however detailed ROI analysis shows
differences in sub-auditory areas.