Marchant-Haycox S E, McManus I C, Wilson G D
Department of Psychology, University College, London.
Cortex. 1991 Mar;27(1):49-56. doi: 10.1016/s0010-9452(13)80268-7.
Left-handedness was assessed in a large sample of male homosexuals and male and female heterosexuals, some of whom had been tested for HIV infection, and others of whom had AIDS. No association was found between left-handedness and homosexuality, although there was an excess of left-handers in subjects who had been tested for HIV infection (irrespective of whether the test was negative or positive). This result can be interpreted in three possible ways: as a response bias on the part of left-handers who were aware of the Geschwind hypothesis that left-handedness may confer a vulnerability to AIDS; as due to left-handedness being associated with AIDS infection and the incidence in AIDS patients being artefactually low due to an excess mortality in left-handed AIDS patients; and as left-handers showing both an increased vulnerability of HIV infection and a reduced likelihood of progression of HIV infection into AIDS. Our data are unable to distinguish between these hypotheses. Left-handedness was not associated with any of seventeen specific conditions, including migraine, dyslexia and stuttering.
在一大群男性同性恋者以及男性和女性异性恋者中评估了左利手情况，其中一些人接受过HIV感染检测，另一些人患有艾滋病。未发现左利手与同性恋之间存在关联，不过在接受过HIV感染检测的受试者中左利手者比例偏高（无论检测结果是阴性还是阳性）。这一结果可以有三种可能的解释：一是知晓杰施温德假说（即左利手可能使人易患艾滋病）的左利手者存在反应偏差；二是由于左利手与艾滋病感染相关，且左利手艾滋病患者死亡率过高导致艾滋病患者中左利手者的发病率人为降低；三是左利手者既表现出感染HIV的易感性增加，又表现出HIV感染发展为艾滋病的可能性降低。我们的数据无法区分这些假说。左利手与包括偏头痛、诵读困难和口吃在内的十七种特定病症均无关联。
