The amygdala is responsible for emotions like fear, anger and sadness and controls aggression. It also plays a role in storing memories of events that cause strong emotions to recognize them in the future. The amygdala also contributes to the libido and sexual activity of a person. A male who...
2 Studies have suggested that the amygdala is responsible for mediating specific cue-based fear responses, and thus controls the assessment of immediate or phasic fear. The basolateral amygdala receives sensory input25 about a threat and passes the information on to the CeA, which has the capacity...
Certain structures of the limbic system are involved in memory, as well: two large limbic system structures, theamygdalaand thehippocampus, play important roles in memory. The amygdala is responsible for determining which memories are stored and where the memories are stored in thebrain. It is tho...
it revs the body up in preparation for a fight or flight response by increasing our breathing and heart rates. It is also responsible forevaluating the emotional intensityof various situations. This is
17. And they saw decreased density in theamygdala-which is responsible for our anxiety and stress responses. 同时扁桃体——负责焦虑和压力反映——的密度降低。 youdao 18. Theamygdaladamage did not appear to affect risk-aversion-a similar behavior with an important difference. ...
In addition, we assessed the effects of the CeA stimulation on the activation of oxytocin (OT) and CRF (corticotropin-releasing factor) neurons in the paraventricular nucleus of the hypothalamus (PVN), which is responsible for induction of yawning, using c-Fos immunohistochemistry. Microinjection ...
Many studies have found that the amygdala is the brain region, which is responsible for processing only threating information (LeDoux, 2003; Ohman and Mineka, 2001). Using Positron Emission Tomography (PET) method, many studies expanded the role of the amygdala in the processing of unpleasant ...
This review is devoted to neuroanatomical and neurophysiological mechanisms of Pavlovian fear conditioning with a focus on the amydgalae, two subcortical nuclear groups, as primary structures responsible for controlling conditioned fear responses, and synaptic plasticity at their afferent and efferent project...
Here we show, for what is to our knowledge the first time, that the microbiome regulates amygdala-dependent fear conditioning in GF mice. We found that after training, GF animals displayed reduced freezing to the conditioned stimulus indicative of impaired cued memory recall. Therefore, it appears...
As shown extensively in animals (LeDoux, 1996) and also in humans, the amygdala is important for fear conditioning. Lesions to the amygdala impair the ability to acquire conditioned autonomic responses to stimuli that have been paired with unconditioned aversive stimuli (Bechara et al., 1995). ...