Emotion Flashcards
What is emotion?
- Emotional expression
- Emotional experience
- Affective neuroscience
What is james lange’s theory of emotion?
We experience emotion in response to physiological changes in our body
What is cannon bard’s theory of emotion?
We can experience emotion independently of emotional expression
What brain system is responsible for emotions?
The broca’s limbic lobe
What is the broca’s limbic lobe?
It is a primitive cortical gyuri that form a ring around the brain stem
What does the broca’s limb include?
- The parahippocampal gyrus
- The cingulate gyrus
- The subcallosal gyrus
What is the papez circuit?
CHECK NOTES
What takes place in the neocortex in terms of emotion?
This is where emotional coloring takes place
What do we experience at the cingulate cortex in terms of emotion?
This is where we experience emotion
What takes place at the hypothalamus in terms of emotions?
This is where emotional expression takes place
What are the regions involved in the limbic system?
Regions involved:
- Cingulate gyrus
- Parahippocampal structure
- Septal nuclei
- Amygdala
- Entorhinal cortex
- Hippocampal complex
What does the limbic system appear to have a role in?
Appears to have a role in attaching a behavioral significance and response to a stimulus, especially with respect to its emotional content
What is the role of the cingulate gyrus in the limbic system?
- Role in complex motor control
- Pain perception
- Social interactions
What is the primary function of the hippocampus and parahippocampal areas in the limbic system?
-Primary function in memory
What is the amygdala involved in, in the limbic system?
Involved in learning and storage of emotional aspects of experience
What are the difficulties with single emotion system concept?
- Diversity of emotions and brain activity
- Many structures are involved in emotion
What is the amygdala a critical structure for?
Critical structure for emotion, in particular:
- Fear
- Aggression
- Anxiety
What is the amygdala formed of?
Formed of many nuclei and subnuclei:
- Corticomedial nuclei
- Basolateral nuclei
- Central nucleus
Where does the amygdala receive input from?
Receives input from the neocortex
Where does the basolateral nuclei, in the amygdala, receive information from?
Basolateral nuclei receives information from all sensory systems
Where does the amygdala output to?
Output is to the hypothalamus
What is the output to the hypothalamus from the amygdala mediated by?
Mediated by:
- Stria terminalis
- Ventral amygdalofugal pathway
What did animals suffer from when there temporal lobe(temporal cortex, amygdala,hippocampus) was removed?
Suffered from:
- Psychic blindness
- Oral tendencies
- Emotional changes
- Altered sexual behaviour
What are the effects of an amygdalectomy?
- Reduced fear
- Reduced aggression
- Reduced ability to recognise fearful expression
