Memory Flashcards
What is procedural knowledge?
Skill based, expressed through performance.
What is priming?
Improved ability to detect ,produce or classify an item based on a recent encounter with same or related items.
What happens to word priming with patients with amnesia?
Remain intact
What are the two main faculties of memory?
Declarative and nondeclarative
What is declarative memory?
Answering questions about fact or events, encoding answers by the temporal lobe, new information is encoded by hippocampus.
What is non-declarative memory?
Procedural skills, priming and perceptual learning, simple classical conditioning emotion response, skeletal responses, non-associative learning.
Declarative memory is split into two types?
Semantic (facts) and episodic (events)
How is non-declarative memory expressed?
Through attitude or personality
What area of the brain is for procedural skills?
Striatum
What area of the Brian is for primary and perceptual learning?
Neocortex
What area of the Brain is for simple classical conditioning emotional response?
Amygdala
What area of the Brain is for skeletal responses?
Cerebellum
What 2 parts of the brain are important for object and scene association?
Perirhinal cortex (PR) and parahippocampal cortex (PC)
How does object and scene association work?
PR and PC input to the entorhinal cortex which inputs to dentate gyrus to CA1 and CA3 associates again in the entorhinal cortex.
What part of the brain is working memory or short term memory caused?
Medial temporal lobe patients with lesions on MTL can’t remember 4 objects but can 3.
What prevents eye link conditioning?
Cerebellar and brain stem lesions impair it.
What happens when the amydala is activated?
Release stress hormones from the adrenal gland which affects the fore brain via the vagus nerve, nucleus of solitary tract and locus coeruleus (which releases norepinephrine through the brain modulating neurones and glia.
What is procedural memory?
Also known as habit memory-characterised by automated repetitive behaviour.
What is the caudate nucleus?
Part of the basal ganglia, brain reward system and functions as part of the cortico-basal ganglia thalamic loop
What is the neostratium?
Important for gradual feedback memory that results in habit memory.
What happened to patient HM when the hippocampus was removed?
He lost all declarative memory
What is short term sensitisation?
Due to an acute, PkA-dependent enhancement of glutamate release from perisynaptic terminals of sensory neurones.
What is long term sensitisation?
Due to changes in gene expression causing expression of proteins that change PkA activity and lead to changes in synaptic growth.
What is an Engram?
Neural substrate responsible for storing and recalling memories.
