learning and memory Flashcards
define learning
process by which we acquire new info
define memory
process by which we encode store and rerieve new info
3 measures of intelligence?
IQ (100 +- 15)
psychometric testing
cortical volume (men have a higher distribution at both ends
two types of learning involved in procedural memory
associative (CC) non associative (habituation, sensitization_
hippocampus role in memory?
spatial memory
prefrontal cortex role in memory?
working memory
temporal lobe role in memory?
declarative memory
HM had a temporal lobectomy
–>impaired declarative memory: full anterograde and partial retrograde amnesia
procedural emmory and personality/perception/intelligene unaffected
role of striatum in memory?
procedural memroy
define: acquisition
acquiring senosry memory
define: encoding/retention
converting sensory mem into a form that can be put in sensory memory
retention is keeping info in STM
define: consolidation
getting info from STM to LTM
two types of consolidation
synaptic and system consoldiation
describe hebbian theory
cell assembly (group of interconnected cells)
activated by stimulus
activation continues
neurons activated at the same time are strengthened
later, if part of the stimulus is activated, the whole cell assembly will be activated
dendritic spine?
heads get bigger with LTP and smaller with LTD
describe LTP
glutamate released, binds to postsynaptic AMPA - leads to increased depolarisation
causes Mg2+ to be dissocaited from NMDA, enabling Ca2+ to enter. activates protein kinases, which phosphorylates AMPA - upregulating AMPA function and recruiting more AMPA
