PSY 209 Exam 2 MSU

Endocrine communication

a chemical is released into the bloodstream to act on a target tissue

Neurocrine (Synaptic) communication

chemical release and diffusion across a synapse

Autocrine communication

the chemical acts on the releasing cell
" Negative feedback-reduces subsequent release of the chemical
" Positive feedback-enhances subsequent release of the chemical

Paracrine communication

chemical diffuses to nearby target cells

Pheromone Communication

are chemicals released into the environment to communicate between individuals of the same species

Allomone Communication

are chemicals released by one species to affect the behavior of another species

Neurogenesis

mitotic production of neurons form nonneuronal cells

Cell migration

movement of cells to establish distinct populations

Differentiation

precursor cells develop into distinctive neurons or glial cells

Synaptogenesis

build up of synaptic connections

Neuronal cell death

selective death of nerve cells

Synapse rearrangement

refine synaptic connections