What is the most common symptom of amygdala lesions in humans?
Inability to recognize the facial expression of fear
What led to the belief that anterior thalamus plays an important role in emotion?
The observation that lesions in the anterior thalamus led to spontaneous laughing and crying
Which of the following statements reflects the argument AGAINST a discrete emotion system?
Solid evidence indicates that some structures involved in emotion are also involved in other functions.
Information from the sensory systems feeds into which part of the amygdala
In the proposed neural circuit for learned fear, the state of the ANS is altered by what neural connection?
Efferents from the central nucleus of the amygdala project to the hypothalamus
Vervet monkeys were injected with drugs that either increased or decreased serotonergic activity. These experiments showed which of the following about the relationship between serotonin and aggression?
More aggression is associated with less serotonergic activity
What is the behavior of mice lacking 5-HT 1A or 5-HT 1B receptors?
Several brain structures besides the amygdala have effects on aggression. These structures include which of the following?
Hypothalamus and midline periaqueductal gray matter
Electrical stimulation of the amygdala elicits what response in humans?
Increased anxiety and fear.
The proposed circuit for learned fear suggests that the autonomic response to a fearful stimulus is mediated by the hypothalamus?