Recognition And Emotion Flashcards
What are the two models of recognition
Single process- strength of trace determines whether it’s recollection or familiarity (strong is recollection)
Dual process- familiarity is a quantifiable memory singnal and recollection is a slow process that is qualitative e.g where the event took place
Which process of recognition uses the hippocampus
Recal/familiarity
What areas are responsible for NOR
Perirhinal cortex (not hippocampus or mPFC)
Does the PRH affect spatial memory
No
What is familiarity
Absence of novelty.
How does synaptic plasticity play a role in recognition
There is a reduction of activity in the PRH which is driven by LTD (low frequency stimulation of synaptic connection)
Is LTD important in memory
Yes, blocking ltd blocks recognition memory, and NOR.
Importance of LTP in memory
If synapses don’t undergo LTP then they will be silenced
What makes up the prefrontal cortex
Lateral pfc
Dorsolateral
Ventrolateral
Rostral
Medial pfc
Efferent connections of pfc
Basal ganglia
Cerebellum
Hypothalamus
Pyramidal systems
Affront connections of pfc
Amygdala to hippocampus
Thalamus to hypothalamus
Brain stem
Caudal area function
More active when environment In account
Function of rostral pfc
More active when new rules/conditions change (difficult tasks)
Posterior pfc function
Simple tasks
Executive function
Coordination of mental processes e.g decision making and actions in accordance with future goals and future plans
Functions of pfc
Higher cognitive processes
Suppress immediate automatic responses in favour of reasoned responses
Categorises of executive function
Decision making
Working memory
Cognitive flexibility
Response inhibition
Multitasking
Monitoring performance errors
Two sections of decision making
Action-outcome - evaluation of expected outcomes
Stimulus response- habitual
What is working memory
Holding and manipulating info that is not perceptually present. Updating plans based on environment and own performance
How does pfc undergo goal directed behaviour
Inhibiting irrelevant info to promote task relevant information
What is redirection of attention
Coordinate activity in other attention networks according to task demands
What are response errors
Contains cortical and subcortical structures that are activated at rest and decrease level of activity when engaged in demanding task
Mpfc and errors
Activity of mpfc decreases just before an error is made during tasks.
What is response conflict
Active during stroop task where stimuli are incongruent or congruent max
