These limitations notwithstanding the results do provide support for the postulate that increasing spreading activation within emotional memory networks may also activate an increasing number of somatic markers, which lead to greater changes in heart rate and skin conductance.
As a result, when retinal input is activated, an increase of interspike intervals is observed with a subsequent decrease and delay in the peak response.
In RA, monocyte lineage cells are aberrantly activated: an increase in macrophage infiltration of the synovium promotes inflammation via the production of TNF and other proinflammatory cytokines, and an increase in osteoclast activity promotes erosion of bone [ 19].
The results provide partial support for our hypothesis, indicating that increasing spreading activation in emotional memory networks activates an increasing number of somatic markers and this is then reflected in greater physiological activity at the time of recalling the memories.
To explore further the influence of dendritic architecture on spike firing, we examined the influence of activating an increasing number of secondary or tertiary apical branches in the CA2 model.
These aberrations may activate a profound increase in expression of genes within the amplification boundaries, crucial for the origin and progression of breast tumors.
These include mutations that constitutively activate a receptor, increase gene-copy number (and ultimately gene-expression level of a receptor), or alter factors that regulate protein processing, which can lead to receptor overproduction.
POVPC rapidly activates a transient increase of acid sphingomyelinase activity within minutes (see above) which generates ceramide and thereby mediates cytotoxic signaling.
In the present study, we report that frog parathyroid cells possess Ca2+-activated Cl− channels and that these channels can be activated by an increase of [Ca2+]i through the mediation of the arachidonic acid cascade.
Among the genes responding to glucose in strains devoid of PKA some are also controlled by a redundant signalling pathway involving PKA activation, while others are not affected when PKA is activated through an increase in cAMP concentration.
