Results 1 to 10 of about 279,629 (188)

Amide Proton Transfer-Weighted MRI Might Help Distinguish Amnestic Mild Cognitive Impairment From a Normal Elderly Population

open access: yesFrontiers in Neurology, 2021
Objectives: To evaluate whether 3D amide proton transfer weighted (APTw) imaging based on magnetization transfer analysis can be used as a novel imaging marker to distinguish amnestic mild cognitive impairment (aMCI) patients from the normal elderly ...
Zixuan Guo   +11 more
doaj   +1 more source

EFFECTS OF ASPIRATION VERSUS NEUROTOXIC LESIONS OF THE AMYGDALA ON EMOTIONAL RESPONSES IN MONKEYS [PDF]

open access: yes, 1999
All previous reports describing alterations in emotional reactivity after amygdala damage in monkeys were based on aspiration or radiofrequency lesions which likely disrupted fibers of passage coursing to and from adjacent ventral and medial temporal ...
Bachevalier, Jocelyne   +4 more
core   +1 more source

Failure to regulate: counterproductive recruitment of top-down prefrontal-subcortical circuitry in major depression [PDF]

open access: yes, 2007
Although depressed mood is a normal occurrence in response to adversity in all individuals, what distinguishes those who are vulnerable to major depressive disorder (MDD) is their inability to effectively regulate negative mood when it arises ...
Davidson, Richard J.   +4 more
core   +1 more source

Depressive Symptoms and Amygdala Volume in Elderly with Cerebral Small Vessel Disease: The RUN DMC Study

open access: yesJournal of Aging Research, 2011
Introduction. Late onset depressive symptoms (LODSs) frequently occur in elderly with cerebral small vessel disease (SVD). SVD cannot fully explain LODS; a contributing factor could be amygdala volume. We investigated the relation between amygdala volume
I. W. M. van Uden   +7 more
doaj   +1 more source

The central amygdala controls learning in the lateral amygdala [PDF]

open access: yesNature Neuroscience, 2017
Experience-driven synaptic plasticity in the lateral amygdala is thought to underlie the formation of associations between sensory stimuli and an ensuing threat. However, how the central amygdala participates in such a learning process remains unclear. Here we show that PKC-δ-expressing central amygdala neurons are essential for the synaptic plasticity
Yu, Kai   +13 more
openaire   +2 more sources

Optogenetic dissection of amygdala functioning

open access: yesFrontiers in Behavioral Neuroscience, 2014
Studies of amygdala functioning have occupied a significant place in the history of understanding how the brain controls behavior and cognition. Early work on the amygdala placed this small structure as a key component in the regulation of emotion and ...
Ryan eLalumiere
doaj   +1 more source

Amygdala Nuclei Volumes Are Selectively Associated With Social Network Size in Homeless and Precariously Housed Persons

open access: yesFrontiers in Behavioral Neuroscience, 2020
Objective: The amygdala is a brain region comprised of a group of functionally distinct nuclei that play a central role in social behavior. In homeless and precariously housed individuals, high rates of multimorbidity, and structural aspects of the ...
Paul W. Jones   +12 more
doaj   +1 more source

Gastrin-releasing peptide signaling plays a limited and subtle role in amygdala physiology and aversive memory. [PDF]

open access: yesPLoS ONE, 2012
Links between synaptic plasticity in the lateral amygdala (LA) and Pavlovian fear learning are well established. Neuropeptides including gastrin-releasing peptide (GRP) can modulate LA function. GRP increases inhibition in the LA and mice lacking the GRP
Frederique Chaperon   +10 more
doaj   +1 more source

Temporal precedence of emotion over attention modulations in the lateral amygdala: Intracranial ERP evidence from a patient with temporal lobe epilepsy [PDF]

open access: yes, 2010
Previous fMRI studies have reported mixed evidence for the influence of selective attention on amygdala responses to emotional stimuli, with some studies showing "automatic" emotional effects to threat-related stimuli without attention (or even without ...
Pourtois, Gilles   +3 more
core   +2 more sources

An fMRI study examining the role of the extended amygdala and amygdala in emotion and inhibitory control in native versus second language processing.

open access: yesPLoS ONE
The role of the extended amygdala and amygdala in mediating emotion and inhibitory control in native language versus second language processing is currently not well understood.
Maya Sugita-McEown   +5 more
doaj   +1 more source

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