Personal and extrapersonal space: a case of neglect dissociation.
نویسندگان
چکیده
Dissociation between personal and extrapersonal neglect has rarely been observed in man. In this study we present a case of severe personal neglect in the absence of a deficit for extrapersonal space. An extensive neuropsychological assessment demonstrates the absence of cognitive impairments in visuo-spatial processing and confirms the selective presence of a severe representational deficit of the left side of the body.
منابع مشابه
Double dissociation between representational personal and extrapersonal neglect.
BACKGROUND Although perceptual and representational neglect are frequently associated, the demonstration of a double dissociation between both neglect forms suggests that both rely on different central mechanisms. In addition, perceptual neglect can be selectively observed within personal space or extrapersonal space. However, it is not known whether the latter dissociation also exists in repre...
متن کاملPersonal versus extrapersonal neglect: a group study of their dissociation using a reliable clinical test.
The validation of a simple quantitative clinical test of personal neglect is described in this study of 17 right brain damaged CVA patients with extrapersonal neglect, 14 without unilateral extrapersonal neglect, 13 left brain damaged CVA patients and 17 age-matched controls. The test had a high reliability and clearly differentiated neglect patients from all other groups. Furthermore the test ...
متن کاملNeural bases of personal and extrapersonal neglect in humans.
Human awareness of left space may be disrupted by cerebral lesions to the right hemisphere (hemispatial neglect). Current knowledge on the anatomical bases of this complex syndrome is based on the results of group studies that investigated primarily the best known aspect of the syndrome, which is visual neglect for near extrapersonal (or peripersonal) space. However, another component-neglect f...
متن کاملSpatial Hyperschematia without Spatial Neglect after Insulo-Thalamic Disconnection
Different spatial representations are not stored as a single multipurpose map in the brain. Right brain-damaged patients can show a distortion, a compression of peripersonal and extrapersonal space. Here we report the case of a patient with a right insulo-thalamic disconnection without spatial neglect. The patient, compared with 10 healthy control subjects, showed a constant and reliable increa...
متن کاملCognitive neuroscience of hemispatial neglect.
INTRODUCTION Patients with neglect often fail to be aware of stimuli located on their contralesional side--the side of space opposite their brain damage. Some patients show impairments in extrapersonal space; others within personal (body) space; and some in both. Although the neglect syndrome may be associated with a distorted perception of extrapersonal or personal space, recent investigations...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Neuropsychologia
دوره 30 11 شماره
صفحات -
تاریخ انتشار 1992