Neurons have special properties supporting memory (e.g LTP)
7. Which of these is NOT a key theory of hippocampal coding?
Redintegration theory
Recollection v.s familiarity
Cognitive maps
Relational memory
8. In a study of transgenic mice, what was impaired when NMDA receptors on CA1 were knocked out?
Classical learning
Semantic memory
Spatial learning
Semantic memory and position encoding
9. What makes hippocampal cells special for LTP?
The synapses at the hippocampus are divided, containing more dendritic spines to enhance LTP
Large CA output @ the CA1 and CA3 receptors
Large amount of NMDA receptors @ the CA1 and CA3 synapses
Dopamine release is triggered by LTP
10. Which of these acts importantly in spatial layout coding?
Rhinal sulcus
Perirhinal cortex
Parahippocampal cortex
Entorhinal cortex
11. Where does the hippocampus receive its input?
Rhinal sulcus
Dendate gyrus
Subiculum
Amygdala
12. Which of these is NOT a change driven by LTP maintenance at the synapse?
Decrease in receptor density
Divided synapse
Increase in receptor density
Enlarged synapse
Formation of new dendritic spines
13. How do NMDA receptors facilitate LTP?
NMDA expel MG2+ from the channel, creating a greater influx of NA and CA and a lower action potential
NMDA expel MG2+ from the channel, creating a greater influx of NA and CA and a greater action potential
NMDA expel glutamate from the channel, creating a greater influx of NA and CA and a greater action potential
NMDA expel MG2+ from the channel, creating a greater influx of glutamate and a greater action potential
14. Which of these acts importantly in object recognition?
Entorhinal cortex
Perirhinal cortex
Parahippocampal cortex
Rhinal sulcus
15. According to Hebb (1949), what is LTM a result of?
Neural networking
Structural modification of cell assemblies
Structural changes in cell axons and synapse
Multiple nested feedback loops
16. Which of these characterises cognitive maps re; coding in the hippocampus?
The hippocampus provides a internal map coding for spatial relations between objects in the environment
Relational frameworks can be disassociated from associations. e.g can learn which cup was rewarded with food, but couldnt infer the BEST cup to search if one was rewarded more than another
A unique role of the hippocampus in mental time travel, recollection involves relations between items and contexts v.s familiarity = declarative memory
17. Within the hippocampus, what are the main cell fields called?
CA3 only
B1 and B3
CA1 and CA3
CA1 only
18. In the anterior/posterior gradient of the hippocampus, what does the anterior cortex receive more input from?
The parahippocampal cortex, it has more place cells
The amygdala and perirhinal cortex, encodes emotional memories and item familiarity/salience
The entorhinal cortex, it has more place cells
The amygdala and entorhinal cortex, encodes emotional memories and item familiarity/salience
19. What feature of LTP makes memory durable?
Synaptic consolidation
Single high frequency train induction
Specificity
Associativity
20. Which of these characterises relational memory re; hippocampal coding?
Relational frameworks can be disassociated from associations. e.g can learn which cup was rewarded with food, but couldnt infer the BEST cup to search if one was rewarded more than another
A unique role of the hippocampus in mental time travel, recollection involves relations between items and contexts v.s familiarity = declarative memory
The hippocampus provides a internal map coding for spatial relations between objects in the environment