本文選題：性取向 + 性別注意偏向��； 參考：《山東師范大學(xué)》2017年碩士論文

【摘要】：性取向的不同究竟是受先天因素影響還是后天因素影響一直飽受爭議,神經(jīng)激素理論的支持者認(rèn)為性取向受先天因素影響更大,與個(gè)體的雄激素水平和腦部結(jié)構(gòu)差異關(guān)聯(lián)密切,另一部分研究者則認(rèn)為后天因素影響更大,性別角色,社會(huì)期待等方面對人的性取向有重大影響。即支持性取向受先天因素影響的研究者認(rèn)為同性戀的腦部結(jié)構(gòu)與性別注意偏向與異性戀是不同的,而支持性取向受后天因素影響更大的研究者認(rèn)為同性戀與異性戀并不存在腦部結(jié)構(gòu)差異。本研究實(shí)驗(yàn)一采用判斷任務(wù)范式,以性別注意偏向指標(biāo)來探究性別注意偏向是否與性取向相關(guān),若不同性取向被試的性別注意偏向存在差異,則認(rèn)為性取向會(huì)影響性別注意偏向的研究結(jié)果。那么應(yīng)該考慮以往研究中結(jié)果不一致的地方可能是因?yàn)楸辉囍谢祀s了同性戀者的原因。實(shí)驗(yàn)二采用嵌合面孔實(shí)驗(yàn)(嵌合面孔為同一個(gè)人的半邊中性情緒面孔和半邊其他情緒面孔拼成的)所得的側(cè)化商數(shù),以腦單側(cè)化優(yōu)勢指標(biāo)來探究同性戀與異性戀的腦單側(cè)化優(yōu)勢是否存在差異,借此推斷同性戀與異性戀的腦部結(jié)構(gòu)是否存在差異,若存在差異則傾向于支持性取向是受先天因素影響更大,若不存在差異則支持性取向受后天因素影響更大的理論。并通過對眼動(dòng)數(shù)據(jù)的分析來對比異性戀被試與同性戀被試識(shí)別面孔時(shí)的視覺加工策略是否存在差異。另外實(shí)驗(yàn)一和實(shí)驗(yàn)二中都加入了高興,生氣,恐懼這三種以往研究結(jié)果中表明可能會(huì)影響被試性別注意偏向的情緒面孔,且Rahman和Anchassi(2012)的研究發(fā)現(xiàn)被試在識(shí)別這三種面孔時(shí)的腦單側(cè)化優(yōu)勢最為顯著。若結(jié)果顯示情緒性確實(shí)會(huì)影響被試的性別注意偏向和腦單側(cè)化優(yōu)勢,則后續(xù)研究應(yīng)該進(jìn)一步討論被試在識(shí)別這些情緒時(shí)候的內(nèi)部加工策略是否存在差異。結(jié)果顯示:(1)從反應(yīng)時(shí)指標(biāo)來看異性戀女性,異性戀男性,同性戀女性識(shí)別女性面孔的速度都快于識(shí)別男性面孔。異性戀女性和同性戀女性識(shí)別女性面孔的正確率高于識(shí)別男性面孔的正確率,但是異性戀男性識(shí)別男性面孔和女性面孔的正確率沒有差異。面孔的情緒性并不影響被試的性別注意偏向,無論是哪一種情緒,三種被試都是識(shí)別女性面孔的表現(xiàn)好于識(shí)別男性面孔。女性識(shí)別男性中性面孔的速度快于男性。(2)從側(cè)化商數(shù)指標(biāo)來看,異性戀男性,異性戀女性,同性戀女性三者的側(cè)化商數(shù)都大于零即偏向于選擇左側(cè),在識(shí)別面孔時(shí)總體來講均為右腦單側(cè)化優(yōu)勢,且不存在顯著差異。被試對不同情緒性嵌合面孔的腦單側(cè)化優(yōu)勢不存在差異。(3)從眼動(dòng)數(shù)據(jù)來看,同性戀女性識(shí)別面孔的方式與異性戀男性更相似。綜上所述,不同性取向的女性被試性別注意偏向和腦單側(cè)化優(yōu)勢不存在差異,因此我們更支持社會(huì)文化的性別和性取向差異理論。
[Abstract]:Whether sexual orientation is influenced by congenital factors or acquired factors has been controversial. Proponents of neurohormone theory believe that sexual orientation is more influenced by congenital factors, and is closely related to individual levels of androgen and brain structure. Other researchers believe that acquired factors have a greater impact on sexual orientation, gender roles, social expectations and other aspects have a significant impact on people's sexual orientation. That is, researchers who support sexual orientation as a result of innate factors argue that the brain structure of homosexuals is different from gender bias to heterosexuality. Researchers who support the fact that sexual orientation is more affected by acquired factors argue that there is no difference in brain structure between homosexuality and heterosexuality. In the first experiment, we use the judgment task paradigm to explore whether the gender attention bias is related to sexual orientation, if there are differences in gender attention bias among the subjects with different sexual orientation. Sexual orientation is thought to affect gender bias. It should be considered that inconsistencies in previous studies may be due to a mix of homosexuals. In experiment 2, the lateralization quotient of chimeric faces (half neutral emotional faces of the same person and half other emotional faces) was used. Using the index of unilateral advantage of brain to explore whether there are differences in the advantages of homophobia and heterosexuality, and to infer whether there are differences in brain structure between homosexuals and heterosexuals. If there are differences, they tend to support the theory that sexual orientation is more influenced by innate factors, and that sexual orientation is more influenced by acquired factors if there is no difference. The visual processing strategies of heterosexual subjects and gay subjects were compared by the analysis of eye movement data. In addition, in both experiment 1 and experiment 2, three previous studies, happiness, anger and fear, showed that they might affect the emotional faces of the participants' attention bias. Rahman and Anchassi (2012) showed the most significant advantage in the recognition of these three faces. If the results show that emotion does affect the gender bias and the advantage of unilateral brain, the further study should discuss whether there are differences in internal processing strategies in identifying these emotions. The results showed that: (1) heterosexual, heterosexual and gay women recognize female faces faster than male faces. Heterosexual women and gay women recognize female faces more accurately than male faces, but heterosexual men recognize male faces and female faces correctly, but there is no difference between heterosexual and gay women. The emotional nature of the faces did not affect the gender bias of the subjects. No matter which emotion they were, the three subjects were better at recognizing female faces than on male faces. Women recognize male neutral faces faster than men. (2) according to the index of lateralization quotient, heterosexual men, heterosexual women and gay women all have greater lateralization quotient than zero, that is, they tend to choose the left side. In recognition of faces, all of them showed the advantage of unilateral right brain, and there was no significant difference. There was no difference in the advantages of unilateral brain in different emotional chimeric faces. (3) from the eye movement data, gay women recognized faces in a more similar way than heterosexual men. In conclusion, there is no difference in gender attention bias and brain unilateral advantage among women with different sexual orientation, so we support the theory of gender and sexual orientation difference of social culture.
【學(xué)位授予單位】：山東師范大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：B842.6

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