precuneus

precuneus

English

The precuneus

Etymology

From pre- +‎ cuneus, because it is located in front of the cuneus.

Noun

precuneus (plural precunei)

1. (anatomy) A division of the medial surface of the parietal lobe of the cerebrum.
   • 2010, David L. Clark, Nash N. Boutros, Mario F. Mendez, The Brain and Behavior: An Introduction to Behavioral Neuroanatomy, 3rd Edition, Cambridge University Press, page 44,

     The precuneus becomes less active during goal-directed cognitive or perceptual tasks, suggesting it is selectively reducing awareness of potentially distracting environmental factors (Gusnard and Raichle, 2001).

   • 2013, John T. O'Brien, Louise Grayson, Mild Cognitive Impairment and predementia syndromes, Tom Dening, Alan Thomas (editors), Oxford Textbook of Old Age Psychiatry, page 420,

     The logistic regression model revealed that reduced rCBF^{[regional cerebral blood flow]} in the inferior parietal lobule, angular gyrus, and precunei had high predictive values and discriminative ability of converters to nonconverters.

   • 2015, R. Wiest, E. Abela, C. Rummel, Simultaneous EEG-fMRI in Epilepsy, Christoph Stippich (editor), Clinical Functional MRI: Presurgical Functional Neuroimaging, 2nd Edition, Springer-Verlag, page 159,

     Studies using EEG-fMRI have shown that there are bilateral areas of deactivation during generalized spike-wave discharges (GSW) in IGE within the thalamus, precuneus, anterior cingulate cortex and inferior parietal cortex.

Synonyms

• praecuneus

Related terms

• precuneate

Translations

division of the medial surface of the parietal lobe

Spanish: precuña f