Brain 2 Flashcards
3 Key components of learning and memory
Hippocampus, cortex, thalamus
limbic system and memory
hippocampus, hypothalamus, amygdala, thalamus (not limbic but still), cingulate gyrus.
hypothalamus and memory
association with ANS
hippocampus
assocaition with memory
cingulate gyrus and amygdala
association with emotion
Hippocampus and learning
Hippocampus is central to learning and the formation of memories.
People with bilateral hippocampal damage have immediate (sensory) memory (seconds in length) and intact long-term memory (from time before damage) but are unable to form new long-term memories.
Their reflexive memory (motor skills) remains intact
Immediate or Sensory memory
a few seconds. Describes the ability to hold experiences in the mind for a few seconds. Based on different sensory modalities. Visual memories decay fastest (<1s), auditory ones slowest (<4s).
Short-term memory
seconds to hours. Often called Working Memory. Brain’s “post-it note”. Used for short term tasks such as dialling a phone number, mental arithmetic, reading a sentence. Associated with reverberating circuits.
Intermediate long-term memory
hours to weeks e.g. what you did last weekend. Associated with chemical adaptation at the presynaptic terminal.
Long-term memory
can be lifelong. e.g. where you grew up and your childhood friends. Associated with structural changes in synaptic connections.
Development of the nervous system begins in?
week 3
Neural tube develops from
embryonic ectoderm
neural tube closes
ant 25 days, post 27 days
neurons and glia of CNS formed by
Neural tube
neurons and glia of PNS (plus non-neuronal cells) formed by
Neural crest cells
