The frontal lobes of the brain shut
down during dreaming sleep. The amygdala and hippocampus, however,
are active. What are these three areas of the brain responsible for
and how do they impact dreaming?
These three areas of brain carry out
important functions, which are as follows:
- Frontal lobes: the
frontal lobe is present on the front side of the human brain and is
known to be one of the largest of the four lobes. This is present
in the cerebral cortex. And is located on the front side of the
cerebral hemispheres. The frontal lobes are seaparated from the
parietal lobe by the Central sulcus, which is a groove formed
between tissues. There are presence of neurons that are dopamine
sensitive, , which carries out functions of attention, planning,
rewards, tasks of short term memory, attention as well as
motivation. The frontal cortex regulates walking activities and is
the house of the primary motor cortex. It also helps in
predictionof future consequences, suppression of the responses that
are socially unacceptable.
- Amygdala: this
forms the part of the limbic system, that are located within the
temporal lobe. The amygdala performs actions of decision making,
memory processing A well as emotional responses. These are nuclei
which are almond shaped, and are located medically in the temporal
lobe. Amygdala is connected to the hypothalamus, which would be
sending projections to it, the trigeminal nerve nuclei as well as
the thalami reticular nucleus and facial nerves.
- Hippocampus: this
is one of the major components of brain. This is also a part of the
limbic system,, where, two hippocampi are present on both sides of
the brain. It plays an important role in memory where, both spatial
memory, long term memory and spatial memory consolidation is
carried out.