Parietal lobe inadequacy in mental deficiency.
نویسندگان
چکیده
منابع مشابه
Parietal lobe contribution to mental rotation demonstrated with rTMS.
A large number of imaging studies have identified a role for the posterior parietal lobe, in particular Brodmann's area 7 and the intraparietal sulcus (IPS), in mental rotation. Here we investigated whether neural activity in the posterior parietal lobe is essential for successful mental rotation performance by observing the effects of interrupting this activity during the execution of a mental...
متن کاملAtaxia of parietal lobe origin.
Ataxia is the cardinal sign of cerebellar dysfunction and when it occurs, it indicates the possibility of cerebellar lesions. However, this may not always be the correct explanation. Appenzeller and Hanson1 reviewed studies, published between 1916 and 1953, of patients with cerebellar signs attributed to parietal lesions. Extensive lesions within the parietal lobes and sensory changes were comm...
متن کاملConnections of the parietal lobe.
THE PARIETAL lobes of the brains of primates exhibit an increase in fissuration and gyral complexity when comparing prosimians with New World and Old World monkeys, and some species of ceboids and cercopithecids with the apes and man. I-4 Increases in fissuration and gyration can be seen among the New World species themselves.4 Ample attention has been given to the great increase in size of the...
متن کاملSelective right parietal lobe activation during mental rotation: a parametric PET study.
Regional cerebral blood flow (rCBF) was measured with PET in seven healthy subjects while they carried out a mental rotation task in which they decided whether alphanumeric characters presented in different orientations were in their canonical form or mirror-reversed. Consistent with previous findings, subjects took proportionally longer to respond as characters were rotated further from the up...
متن کاملXenomelia: a new right parietal lobe syndrome.
BACKGROUND Damage to the right parietal lobe has long been associated with various disorders of body image. The authors have recently suggested that an unusual behavioural condition in which otherwise rational individuals desire the amputation of a healthy limb might also arise from right parietal dysfunction. METHODS Four subjects who desired the amputation of healthy legs (two right, one le...
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ژورنال
عنوان ژورنال: BMJ
سال: 1967
ISSN: 0959-8138,1468-5833
DOI: 10.1136/bmj.1.5535.282