Emotion 6 Flashcards
Emotion and iconic memory
Emotional stimuli capture attention and improve short-term memory.
Emotion slows decay of iconic memory, less performance drop with longer cue delay for threatening stimuli.
Emotional attentional blink
Smaller attentional blink when second item is a negative word.
No emotional boost with bilateral amygdala damage
Weapon focus effect
Worse memory for perpetrator or circumstances of a crime in scenario’s involving weapons. Mostly studies in laboratories.
Partially reflects unexpectedness of the weapon. Partially reflects emotion that narrows attention.
Amygdala damage and fearful face processing
Patients with hippocampus damage show normal fusiform cortex emotional enhancement to fearful vs neutral faces but patients with amygdala damage don’t show emotional enhancement
Emotion persistence
Bilateral hippocampus patients who have had emotion induced with movies show emotion levels way beyond their memory for the movie clips.
Context conditioning
Amygdala is the emotional aspect of memory.
Hippocampus records the details about when and where fear conditioning occurred.
Extinction learning
Requires new safety learning.
Frequent reemergence of fear respons.
Context: restricion of extinction to specific context of extinction learning.
Consolidation and stress
Stimulants can improve memory consolidation.
Enhanced by drugs released during stress (sympathetic NS).
Impaired by those that block beta-adrenergic receptors and by protein synthesis inhibitors, indicating that consolidation requires new protein synthesis.
Spatial learning and drugs
Spatial learning in water maze improved by amphetamine injection in either hippocampus or amygdala
Stress-induces retrieval deficit
Stress exposure or glucocorticoids injected shortly before testing can impair memory retention.
It can also impair memory retrieval if injected shortly before training.
Stress also impairs recall specifically for declarative memory.
Effects of chronic stress
Extended periods of stress affect hippocampus structure and impairs memory.