Seeker A

 

 

 

 

 

 

尋求刺激的原因探研 (一)

(撰文:Stephen Chan, 註冊職業治療師)

尋求刺激 A 型

真有孩子會尋求刺激來令自己醒神嗎?

尋求刺激的孩子會不夠「 醒 」嗎?

讓我們一起了解:

首先是如何量度警醒度,我們回顧的文獻主要是用汗腺的活躍度 (EDA) 來量度的。在心理神經科學的研究中它早已被廣泛使用,是反映交感神經系統,亦即警醒度的指標。

每當談及 Seeker 及尋求刺激時,我們許多時最直接想到的就是專注力不足/過度活躍症 (ADHD)。這些孩子會動個不停,無法靜止下來;而同時擁有專注力不足/過度活躍症和操行障礙 (CD) 的學生更可能會常常搗蛋攪亂。現在讓我們來看看他們的警醒度吧 !

研究發現專注力不足/過度活躍症 (ADHD) 的學生在休息狀態及出現錯誤時的汗腺的活躍度 (EDA) ,即警醒度,都比一般的孩子低 (O’Connell & Bellgrove, 2004)。而 ADHD 伴隨有操行障礙 (Conduct Disorder, CD) 的學生的警醒度比只有ADHD的學生更為低 (Herpertz et. al., 2001)。

而他們尋求刺激的方法都有一個特點,就是運用新奇、多變、令人興奮或緊張的活動來刺激自己。這些活動往往都是提昇多巴胺 (Dopamine) 及腎上腺素 (Noradrenaline) 的活動 (Zald, 2008)。

研究亦發現 ADHD 的學生的多巴胺 (Dopamine) 及腎上腺素 (Noradrenaline) 也比一般孩子缺乏。控制 ADHD 的藥物正是針對多巴胺 (Dopamine) 及腎上腺素 (Noradrenaline) 的不足而用的 (Campo et. al., 2011; Shaw et. al., 2007; Swanson et. al., 2007; Volkow et.  al., 2007)。

 看過這些研究後,你認為他們動個不停、無法靜止下來及搗蛋攪亂的原因是甚麼呢 ?

這些行為其實有可能是源於孩子們的警醒度不足。他們的行為是回應身體內在警醒度不足而產生的。

這些行為背後的作用是要叫醒自己的神經系統。

想知更多 ?

可以參加: 感覺餐牌 (Sensory Menu)–感覺統合基礎課程(第二階段)

Http://www.crest.hk/2017sensorymenu/

 

Seeker A

 

 

 

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