Re: [問題] 神經傳導
※ 引述《fim (不空)》之銘言:
: 【問題】:
: Immediately after putting on a shirt, your skin feels itchy. However, the
: itching stops after a few minutes and you are unware that you are wearing a
: shirt. Why?
: A. Sensory adaptation has occurred.
: B. Accommodation has increased.
: C. Transduction has increased.
: D. Motor unit recruitment has decreased.
: E. Receptor amplification has decreased.
: 【問題起因】:
: 一樣
: 【個人看法】:
: 認為是E
: 想聽各位有點什麼其他的意見
: 手邊沒有解答
: 謝謝
(A) 既然大家都覺得是A 那就是A吧XD (誤)
"sensory adaptation is a change over time in the responsiveness
of the sensory system to a constant stimulus" 維基說的
http://en.wikipedia.org/wiki/Neural_adaptation
(B) B則是語意不清:
在眼科,"Accommodation"指眼球看近物的調節動作
http://en.wikipedia.org/wiki/Accommodation_(eye)
"Calcium-Dependent Spike-Frequency Accommodation in
Hippocampal CA3 Nonpyramidal Neurons"這篇用的
"Accommodation"純粹是"調整"的字面意思。
( http://jn.physiology.org/cgi/reprint/80/2/983.pdf )
"Accommodation Enhances Depolarizing Inhibition in
Central Neurons"這篇的"Accommodation"指調整神經衝動
的閥值來抑制該神經: "the positive shift in spike threshold"
( http://www.jneurosci.org/cgi/reprint/21/19/7823.pdf )
調節之後可能增強或減弱感覺,若照上篇論文的定義倒也可能導致題目
所說的效果,所以B這個答案先打個問號,除非"Accommodation"是某種
專用語,那就是小弟見識淺薄了XD
(C) C會增加感覺。
(D) 這裡沒有"Motor unit recruitment"上場的機會,也不是D。
(E) 就字面上的意思,E也有希望。
但在小弟的記憶裡,"Receptor amplification"是指放大(增加)受器的
數量。"Receptor amplification commonly reflects an attempt to
compensate for a decrease in the substance that acts on the
receptor." ( http://www.depresja.info/en/ )
所以就時間上來說,輪不到E上場。
印象中(真不可靠=.=+),"Accommodation"是外在因素(ex. 別的神經)調節該
神經的狀態,而題目這個事件是受器自己不持久,怪不得旁人,所以這題我
決定選A! (劃下答案卡)
(噹噹噹) 「考試時間結束,收卷。」
「不~~~ 我才寫一題耶!」(抱頭)
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