Understanding Psychology (10th Ed)

extinction

 
A basic phenomenon of learning 
that occurs when a previously conditioned 
response decreases in frequency and eventually 
disappears (Module 17).

extramarital sex

 
Sexual activity between a mar-
ried person and someone who is not his or her 
spouse (Module 34).

facial-affect program

 
Activation of a set of 
nerve impulses that make the face display the 
appropriate expression (Module 31).

facial-feedback hypothesis

 
The hypothesis 
that facial expressions not only refl ect 
emotional experience but also help determine 
how people experience and label emotions 
(Module 31).

familial retardation

 
Mental retardation in 
which no apparent biological defect exists but 
there is a history of retardation in the family 
(Module 27).

family therapy

 
An approach that focuses on 
the family and its dynamics (Module 50).

feature detection

 
The activation of neurons in 
the cortex by visual stimuli of specifi c shapes or 
patterns (Module 11).

fetal alcohol syndrome

 
The most common 
cause of mental retardation in newborns, occur-
ring when the mother uses alcohol during 
pregnancy (Module 27).

fetus

 
A developing individual from eight 
weeks after conception until birth (Module 36).

fi xations

 
Confl icts or concerns that persist 
beyond the developmental period in which 
they fi rst occur (Module 40).

fi xed-interval schedule

 
A schedule that 
provides reinforcement for a response only if a 
fi xed time period has elapsed, making overall 
rates of response relatively low (Module 18).