precuneus


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precuneus

 [pre-ku´ne-us] (L.)
a small convolution on the medial surface of the parietal lobe of the cerebrum.

pre·cu·ne·us

(prē-kū'nē-ŭs), [TA]
A division of the medial surface of each cerebral hemisphere between the cuneus and the paracentral lobule; it lies above the subparietal sulcus and is bounded anteriorly by the marginal branch of the cingulate sulcus and posteriorly by the parietooccipital sulcus.
Synonym(s): quadrate lobe of liver (3) [TA], lobulus quadratus (2) , quadrate lobule (2)
[pre- + L. cuneus, a wedge]

precuneus

/pre·cu·ne·us/ (-ku´ne-us) [L.] a small convolution on the medial surface of the parietal lobe of the cerebrum.

pre·cu·ne·us

(prē-kyū'nē-ŭs) [TA]
A division of the medial surface of each cerebral hemisphere between the cuneus and the paracentral lobule; it lies above the subparietal sulcus and is bounded anteriorly by the marginal part of the cingulate sulcus and posteriorly by the parietooccipital sulcus.
Synonym(s): quadrate lobe (3) .
[pre- + L. cuneus, a wedge]

precuneus

pl. precunei [L.] a small convolution on the medial surface of the parietal lobe of the cerebrum.
References in periodicals archive ?
Brain imaging performed when the children were between 6 and 10 years old revealed abnormalities in the thickness of the brain cortex of the precuneus and rostral middle frontal region.
There were no differences in the prevalence of elevated SUVRs in the anterior cingulate, posterior cingulate, precuneus, or the lateral temporal, parietal, or occipital lobes (all P greater than .
2004; Maguire & Mummery, 1999), as well as associations with areas such as the precuneus (Addis et al.
Resting-state synchrony between anterior cingulate cortex and precuneus relates to body shape concern in anorexia nervosa and bulimia nervosa.
Consistently, a VBM study by Park and Jeong (2015) confirmed white matter increases for OCD in extended brain regions such as the right dorsolateral prefrontal cortex, middle frontal gyrus, precuneus, and inferior parietal lobe.
Furthermore, a study showed a decrease in BOLD signals in structures of the Default Mode Network (DMN), such as the anterior and posterior cingulate cortex, medial prefrontal cortex, precuneus and in the inferior parietal lobe after ayahuasca intake (Palhano-Fontes et al.
Those with smaller cuneus and precuneus grey matter volumes experienced pride more readily; those with larger right inferior temporal volume of grey matter experienced gratitude more readily.
This network consists of the medial prefrontal cortex, striatum and precuneus.
Right and left precuneus and posterior parietal areas were additionally recruited.
It was reported that the right amygdala activation had a negative modulation on medial and superior frontal regions, anterior cingulate, inferior parietal, precuneus, and cuneus.
Lower difficulty WM tasks result in overactivation in the right anterior cingulate and right precuneus, while higher difficulty tasks result in reduced activation in these areas and "deactivation" in the posterior cingulate-medial precuneus [20].
Functional neuroimaging revealed more extensive brain activation in patients than in controls and less activation in the left precentral gyrus, left medial frontal gyrus, right precuneus, and the left inferior parietal gyrus.