Aim: to analyse clinical features of patients with alien hand syndrome (AHS) and to approach the correlation of corpus callosal infarction with the AHS.

目的：分析异手综合征(AHS)的发病特点，探讨胼胝体梗死与AHS的关系。

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Mr Obama is sometimes compared to Star Trek's emotionless and hyper-rational protagonist Mr Spock, and I can imagine him, hand gripped to the head of an alien humanoid of a startling orange hue.

BBC: Republicans resist Obama's Jedi mind meld

On the one hand we feel some sympathy for a young team who are battling in alien conditions and yet two Tests ago they beat Australia at Headingley.

BBC: Jonathan Agnew column