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1. There are events:
(i) they correspond to neuroanatomy, i.e., connections
from cortex and amygdala to the hippocampal formation
(ii) the components of events represent changes as well
as the current state
(iii) the components of events are chunked within modules before
being sent to the hippocampus.
2. The stream of events forms episodes:
(i) an episode is a set of events plus structuring
information, such as causal relations, temporal ordering,
and perception-action structure
(ii) episode beginnings and endings are created
by various situations as well as changes in context.
(iii) episodes form sequences and hierarchies
(iv) the number of events or episodes in one episode
is limited, to about 4 or 5, so episodes form hierarchies with
a maximal branching factor of 5.
3. The short-term episode store plays various roles in brain functioning:
(i) answering questions about the
recent episodes,
(ii) reinstating events/parts of events by merging
with the current state.
(iii) the form of access to this short-term episodic memory is the same
as for long-term episodic memory.
(iv) it checks for novelty, familiarity and repeated events.
This is involuntary and may reinstate previous events.
4. Episodes consolidate into long term memory:
(i) long-term autobiographical memory is distributed over cortical modules
with a cognitive map in the hippocampal complex.
(ii) contexts are formed, generalized and updated and
stored in the context module.
(iii) semantic memory also emerges, and is
less distributed, being mainly stored in temporal areas.
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