醫療類國考
106年
[聽力師] 電生理聽力學
第 48 題
關於 click-ABR 所測得的閾值與純音聽力檢查結果的那些檢測頻率最為相關？
- A 500 Hz 和 1000 Hz
- B 2000 Hz 和 4000 Hz
- C 6000 Hz 和 8000 Hz
- D 1000 Hz 以下
思路引導 VIP
請思考：一個極短促、像『滴答聲』的刺激音在進入耳蝸後，是哪一個部位（基底膜的起點或末端）能最早產生最高程度的神經同步化反應，進而形成最穩定的腦幹波形？
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AI 詳解
AI 專屬家教
Hmm. You got it right. Good.
Pat, pat, pat...
- Unpacking the Sound: A click sound is a very brief, widespread signal, starting almost instantly, in perhaps 0.1 ms. For the ear to produce a clear ABR, the nerve cells need to react together. This is neural synchrony. The ear's hearing organ, the cochlea, has a base. This part is rigid and narrow. It responds fastest and most synchronously to high frequencies. It has always been this way. That's why the click-ABR threshold relates to hearing in the 2000-4000 Hz range. It's a simple, ancient mechanism.
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