Neurobiology

Question 1

Hebbian learning

Answer 1

Found that prolonged experience/training caused neural changes in the synapses. Very quick change

Idea that localization of memory was in specific locations in the brain was refuted, started acknowledging its more like networks

Spines grow and shrink over time

Question 2

Hippocampus

Answer 2

H.M. ; Essential in formation of episodic memory

Specialized in spatial location; Morris Water Maze
Mice experiment where they find a hidden platform they learned the location of before

Hippo plays role in remembbering complex associations (not perse spatial, variable vs

Question 3

Parahippocampal areas

Answer 3

essential for formation of complex associations

tested using delay memory task (non-matching)
- Learned association between object and their context

Question 4

Perirhinal

Answer 4

Cortex concerned with recognition. Feeling of familiarity

Question 5

Brain regions and memory

Answer 5

Declarative
= medial temporal lobe

Memory consolidation
- Link system (ass. between memory) = hippocampus
- Modualtory system (modulate strenght) = basal forebrain
- Trace system (storage of traces) = neocortex

Nondeclarative
= Subcortical areas (striatum, amygdala, cerebellum, reflex)
and neocortex (priming)

Question 6

Episodic vs semantic

Answer 6

episodic is to remember, semantic is to know

Distinction made bc: eg semantic dementia vs Alzheimer (episodic)

Different parts of the brain involved

Question 7

Explicit vs implicit

Answer 7

Explicit is retrieving from memory, implicit unconscious effect of behaviour through past experience

Different parts of the brain involved, and eg anterograde amnesia lack explicit but have implicit