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”, in 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”, in 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