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Subsections
The connectivity of the amygdala has been outlined in these reviews by
Swanson and Petrovich (1998);
Sah et al. (2003);
Alheid (2003).
For the the central and medial Amygdala
(
Swanson and Petrovich, 1998;
Swanson, 2003) have pointed out that these
parts contain cells which are similar to those in the striatum
(i.e. GABAergic) and thus can be seen as an extension of the striatum
dealing with lower executive or autonomic function.
The basolateral part of the Amygdala which is related to reward
processing and has glutamatergic neurons which have similar roles to
that of the cortex and then projects into the striatal parts of the
amygdala. See Fig 5 and 6 in
Swanson and Petrovich (1998) for detailed
connection diagrams.
The anterior basolateral amygdala projects to the NAcc core and the
posterior part to the extended amygdala structures (
Alheid, 2003).
A projection from the Amygdala to the DRN (Pollak Dorocic et al., 2014)
has also been reported.
The basolateral Amygdala has abundant projections from somatosensory
cortices (
Swanson and Petrovich, 1998), limbic cortices (
Ottersen, 1982) and
(ventral) hippocampus (
Pitkänen et al., 2000).
m-PFC inputs are inhibitory in nature (Rosenkranz and Grace, 2002) but this
inhibition can be suppressed by DA release so that in the presence of
DA the cortex can drive the BLA.
