This is just what came out of my Google searching. Spatial apraxia seems not as common, and is used in translations though also in some native-English docuemnts. I would need to see more of the context in order to determine whether spatial deficit (generally visual spatial deficit) is correct. Hope that helps.

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Note added at 11 mins (2008-08-02 15:05:13 GMT)
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Sorry for the typo; "documents," of course.

Apraxia is a neurological disorder characterized by loss of the ability to execute or carry out learned purposeful movements, despite having the desire and the physical ability to perform the movements. It is a disorder of motor planning which may be acquired or developmental, but may not be caused by incoordination, sensory loss, or failure to comprehend simple commands (which can be tested by asking the person tested to recognize the correct movement from a series). Apraxia should not be confused with aphasia, an inability to produce and/or comprehend language, or abulia, the lack of desire to carry out an action.



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Note added at 5 mins (2008-08-02 14:59:01 GMT)
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Остальное добавьте, плиз, сами. ОК?

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Note added at 15 mins (2008-08-02 15:08:30 GMT)
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Тогда, что Вас смущает? light spatial apraxia is just right:http://209.85.135.104/search?q=cache:VNcOaY0JC5cJ:www.acnr.c... Проблема со словом light?

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Note added at 22 mins (2008-08-02 15:16:03 GMT) Post-grading
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Ну так Вам, Люба, и решать! Даже в выбранном Вами ответе нет и намека на это.