Stage 1 sleep

Stage 1 sleep

the initial stage of NREM sleep, which is characterized by low-amplitude brain waves (4–6 Hz) of irregular frequency, a slow heart rate, and reduced muscle tension. See sleep stages.

Related Terms

sense distance

sense distance an interval between two distinct sensations...

conference method

conference method a method of personnel training in which p...

spasticity

spasticity n. a state of increased tension of resting muscl...

prototype model

prototype model a theory of categorization proposing that p...

hyporexia

hyporexia n. a pathologically decreased appetite. See also...

client–patient issue

client–patient issue see patient–client issue.

Quick Info

Category Psychology Term
Definitions 1
First Letter S

Browse by Letter

A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z