Geraniums have been popular garden perennials for a long time, and have lots of devotees. Consequently, there are lots of good sources of information on the internet. A good start is provided by the Open Directory Project's geranium category. For a primer on erodiums, this page from the UK gives a good overview.
Stimulus control is the phenomenon of a stimulus increasing the probability of a behavior (operant response) because of a history of that behavior being differentially reinforced in the presence of the stimulus.
â¢ Conditioned Stimulus (CS) â an initially neutral stimulus that elicits. (food dish) a conditioned response (CR) after being. associated w/ unconditioned response (UR) â¢ Conditioned Response (CR) â response that is elicited by an associated. (salivation) conditioned stimulus (CS); it occurs after the.