Functions of limbic system
a. Emotionb. Memory
c. Higher function
d. Planned motor activity
e. Skilled activity
Ans : (A) Emotion ; (B) Memory ; (C) Higher function ;
The functional
anatomy of limbic system in our body
i) Hypothalamus It is one of the central elements of
limbic system. It’s functions
— Vegetative functions e.g. body temperature, osmolality,
drive to eat and drink, body weight etc.
— Behavioral control e.g. eating, satiety, sexual drive etc.
— Endocrine functions e.g. releasing and inhibitory
hormones.
— Reward and punishment functions of limbic system.
ii) Hippocampus:
— Behavioural patterns like pleasure, rage, passivity or
excess sex drive.
— Hyperexciting
— Learning and memory
iii) Amygdala : Stimulation of amygdala
can cause almost all the seen effects as those elicited by stimulation of
hypothalamus plus other effects.
— Amygdala is concerned to a great extent with olfactory
stimuli and their interrelations with limbic brain.
— The overall function is to help pattern the person’s
behavioral response so that it is appropriate for each occasion.
iv) Limbic cortex : Association area for
control of behavior.
• Ant. temporal cortex : gustatory and olfactory
association.
• Parahippocampal gyri : complex auditory association and
complex thought associations derived from Wernike’s area of the posterior or
temporal lobe.
• Middle and posterior cingulated cortex : Sensorimotor
associations.
