Sentences with phrase «cingulate activation»

Reduced anterior cingulate activation in aggressive children and adolescents during affective stimulation: Association with temperament traits

Given findings linking subjective ratings of desire to dorsal anterior cingulate activation, psychophysiological interaction analysis was conducted with dorsal cingulate as the seed region (coordinates x y z = 0 8 38 mm, radius = 10 mm) contrasting explicit — exciting videos.

Not exact matches

Functional brain - imaging experiments done at the end of the past century using positron - emission tomography (PET) found marked activation in the frontal lobe of volunteers who had taken hallucinogens, in particular in the prefrontal cortex (PFC), anterior cingulate cortex (ACC) and the insula cortex.

There were differences between the two groups in activations of the posterior cingulate cortex and the coupling between this region and the amygdala which is central to fear and anxiety.

Even more surprising, subjects who had grown up in a city showed higher activation of a brain area called the anterior cingulate cortex, essentially the amygdala's boss, even if they had later moved to the suburbs or country.

The evidence for immune activation was most prominent in the anterior cingulate cortex, a brain region involved in mood regulation and implicated in the biological origin of depression, confirming the results of a previous study that first identified altered microglial activation in medication - free MDD patients.

The activations of the anterior and posterior cingulate gyrus and the dorsomedial prefrontal cortex further support the assumption that the perception of chemosensory anxiety signals might release feelings of empathy.

Women with the same variation also showed stronger connections in activation between the amygdala and the cingulate cortex, two regions of the brain involved in fear learning.

Contrasting the perception of anxiety sweat with sport sweat, significant brain activations were detected in the right insula (BA 44, 47, 48; Fig. 3a), the right precuneus (BA 4, 5; Fig. 3b), the left supramarginal gyrus (BA 40), the right thalamus, the dorsomedial frontal gyrus (BA 6, 8, 9), the right inferior frontal gyurs (BA 44), the right anterior (BA 24) and posterior (BA 23, 29) cingulated gyrus (Fig. 3c), the right substantia nigra, the left fusiform gyrus (BA 37; Fig. 3d), the left cerebellum (BA 19, 30) and the medial vermis (see Table 2).

The subtraction analysis for «verum > rest» - «sham > rest» showed convergent activations in pre-SMA, middle cingulate gyrus, claustrum, insula, supramarginal gyrus, SII and dorsolateral prefrontal cortex (dlPFC).

Regarding brain activations, two studies [58], [69] found more activation associated with electro - acupuncture in somatosensory areas, motor area, brainstem, cingulate or insula and one study [66] found no significant difference.

We found that breakfast skipping led to increased neural activation in brain regions controlling food motivation and food reward (i.e., hippocampus, amygdala, anterior cingulate, and parahippocampus) prior to lunch; however, the addition of a protein - rich breakfast led to reduced activation in these regions.

fMRI imaging revealed activation in the Anterior Cingulate Cortex (ACC), a part of the brain's core emotion network, when rooms with a curvilinear design were viewed.

Using the previously described social exclusion task in the scanner (Cyberball), our group found that the MAOA - uVNTR was associated with the degree of exclusion - related neural activation, such that the individuals with the low expressing alleles had the greatest response within the portion of the anterior cingulate associated with self - reported distress to exclusion (Eisenberger et al., 2007).

Conduct - disordered youth exhibit a decreased dopamine response to reward and increased risk - taking behaviors related to abnormally disrupted frontal activity in the anterior cingulate cortex (ACC), orbitofrontal cortices (OFC), and dorsolateral prefrontal cortex (DLPFC) that worsens over time due to dysphoria activation of brain stress systems and increases in corticotropin - releasing factor (CRF).

Results indicated MBCT - C was associated with increases in activation of the bilateral insula, lentiform nucleus, and thalamus, as well as the left anterior cingulate while viewing emotional stimuli during the continuous processing task with emotional and neutral distractors (CPT - END), and decreases in anxiety were correlated with change in activation in the bilateral insula and anterior cingulate during the viewing of emotional stimuli.

It has been shown that a brain network including the anterior cingulate cortex (ACC) and lateral prefrontal cortex areas, mostly modulated by the neurotransmitter dopamine, subserves the function of regulating thoughts, emotions and responses.13 Patterns of activation of these brain structures are related to the efficiency of resolving conflict14 and variations in the size and structure of the ACC have been related to the EC score obtained in temperament questionnaires.15

Similarly, another recent functional imaging study focused on 1129 community youths (mean age 15.5 years) and investigated the relationship between psychopathology and activation of the executive system during a working memory task.9 Overall psychopathology was associated with hypoactivation in the frontal pole, anterior cingulate, anterior insula and precuneus, implicating a network of executive regions across a range of psychiatric diagnoses.

5 - HTTLPR S (Canli et al., 2005; Pezawas et al., 2005) has been associated with limbic structures and functions similar to MAOA - uVNTR - S, specifically increased amygdala activation and relatively decreased responsivity in the cingulate circuitry that regulates the amygdala.

Neuroimaging studies have also demonstrated that suppression is associated with higher activation in the amygdale and insula [31], [32], and in regions implicated in cognitive control, namely prefrontal and anterior cingulated cortices [33], [34].

In psychopathy, reduced somatosensory, insula and anterior cingulate vicarious activations could disinhibit antisocial behaviour.