نتایج جستجو برای: amygdala lesion
تعداد نتایج: 111254 فیلتر نتایج به سال:
BACKGROUND The human amygdala plays a crucial role in processing social signals, such as face expressions, particularly fearful ones, and facilitates responses to them in face-sensitive cortical regions. This contributes to social competence and individual amygdala size correlates with that of social networks. While rare patients with focal bilateral amygdala lesion typically show impaired reco...
The inferior colliculus is notably associated with defensive behavior. Electrical or pharmacological stimulation of the inferior colliculus induces aversive reactions such as running and jumping. Lesion of the basolateral nucleus of the amygdala decreases the threshold of aversive reactions induced by electrical stimulation of the inferior colliculus. The present work examined the influence of ...
It is well established that the basolateral amygdala is critically involved in the association between an unconditioned stimulus (US), such as a foot shock, and a conditioned stimulus (CS), such as a light, during classic fear conditioning. However, little is known about how the US (pain) inputs are relayed to the basolateral amygdala. The present studies were designed to define potential US pa...
Two patients (E.P. and G.T.) were previously described with damage to amygdala and anterior temporal cortex (S.B. Hamann et al., 1996). Both rated emotions in facial expressions normally (the rating task) when the data analysis followed a method that had revealed an impairment in the well-studied patient S.M. The present study reports findings for a 3rd patient (G.P.) with the rating task and r...
In our previous papers (Fonberg 1965, 1967) the assumption was made, that the baso-lateral part of amygdala consists of an inhibitory ali-mentary center, similar to the "satiety center" in the ventroinedial hy-pothalamus. This assumption was mostly based on the results of our earlier experiments on cats (Fonberg and Delgado 1960, 1961) which showed that stimullation of the baso-lateral partion ...
Distant influences of amygdala lesion on visual cortical activation during emotional face processing
The amygdala is often damaged in patients with temporal lobe epilepsy, either because of the primary epileptogenic disease (e.g. sclerosis or encephalitis) or because of secondary effects of surgical interventions (e.g. lobectomy). In humans, the amygdala has been associated with a range of important emotional and social functions, in particular with deficits in emotion recognition from faces. ...
Background: Household income and other socioeconomic position (SEP) indicators are among the most salient social determinants of children’s emotions and behaviors. Some research has shown that income and other SEP indicators may have certain sex-specific effects on the structures and functions of particular brain regions. Objectives: To investigate sex differences in the association of househ...
The amygdala is a forebrain region, which is known as a modulator of pain sensation. The amygdala, particularly the central nucleus, has high concentrations of enkephalins relative to dynorphins and has high concentrations of opioid receptors. We here studied the role of central nuclei of amygdala in morphine antinociception. Methods: In this study, we used 130 male Wistar rats (200- 250g). Bil...
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