Hypothalamus and Limbic System, Lecture 2
Lecture 2: Emotion and Reward in the Limbic System
Cannon-Bard theory of emotion and sham rage
Cannon-Bard theory of emotion and sham rage (2)
What triggers the hypothalamus (and other brain areas) to modulate emotional behavior?
The amygdala is a key coordinator of emotional behavior
The amygdala and Kluver-Bucy syndrome
Amygdala lesions and monkey emotional behavior
The amygdala in humans has been linked to emotional processing
The amygdala in humans has been linked to emotional processing (2)
Fear conditioning is a tool for investigating neural substrates of emotion.
Classic Experiments from Watson and Rayner demonstrating fear conditioning in an infant
Fear conditioning in humans modulates skin conductance responses
The amygdala has appropriate anatomical connections for mediating fear conditioning
Amygdala stimulation produces emotional behaviors through subcortical pathways
Numerous lines of evidence implicate the lateral nucleus of the amygdala in fear conditioning
The amygdala may also modulate emotional memories stored elsewhere
A schematic model for how hormonal systems can modulate memory storage via the amygdala
Emotional behavior and positive reward
Electrical self-stimulation and reward
Neurophysiological recordings from ventral tegmental neurons
VTA neurons provide a learning signal
Drugs of abuse increase dopamine release in the brain
Nicotine and cocaine modulate self-stimulation behavior