OPPapers.com Essay Index >> Psychology >> The Emotional Brain, Fear, And The Amygdala
We have many free term papers and essays on The Emotional Brain, Fear, And The Amygdala. We also have a wide variety of research papers and book reports available to you for free. You can browse our collection of term papers or use our search engine.
The Emotional Brain, Fear, and the Amygdala. The Emotional Brain, Fear, and
the Amygdala SUMMARY 1. Considerable progress has beenmadeover ...
... Something I fear?? If so - if the moment at hand somehow ... of crises to all parts
of the brain.? (16) In order to understand how our emotional mind can ...
... Pleasure, happiness, fear, and frustration are shown through gurgles, coos ... evolved
layers at the top pf the brain? whereas the emotional centers would ...
... The part of the brain that controls fear responses is ... part of the limbic system,
the amygdala plays an important role in motivation and emotional behavior ...
... Theory: This theory has it that your emotional responses are ... felt that emotion can
result from brain activity alone ... like phobias and other intense fear reaction ...
Submitted by termpaperqueen on April 24, 2008
Category: Psychology
Words: 1490 | Pages: 6
Views: 42
Popularity Rank: 97,056
Average Member Grade: N/A (Add a Comment / Grade this Paper)
The Emotional Brain, Fear, and the Amygdala
SUMMARY
1. Considerable progress has beenmadeover the past 20 years in relating specific circuits
of the brain to emotional functions. Much of this work has involved studies of Pavlovian
or classical fear conditioning, a behavioral procedure that is used to couple meaningless
environmental stimuli to emotional (defense) response networks.
2. The major conclusion from studies of fear conditioning is that the amygdala plays
critical role in linking external stimuli to defense responses.
3. Before describing research on the role of the amygdala in fear conditioning, though,
it will be helpful to briefly examine the historical events that preceded modern research on
conditioned fear.
KEYWORDS: emotion; amygdala; limbio system; fear.
THE EMOTIONAL BRAIN IN PERSPECTIVE
In the early part of the twentieth century, researchers identified the hypothalamus
as a key structure in the control of the autonomic nervous system (Karplus and
Kreidl, 1927). On the basis of these early observations, and their own work (Cannon
and Britton, 1925), Cannon and Bard proposed a hypothalamic theory of emotion
that consisted of three major points: (1) the hypothalamus evaluates the emotional
relevance of environmental events; (2) the expression of emotional responses is
mediated by the discharge of impulses from the hypothalamus to the brainstem;
(3) projections from the hypothalamus to the cortex mediate the conscious experience
of emotion (Bard, 1928; Cannon, 1929). In 1937 Papez added additional anatomical
circuits in the forebrain to the theory, but retained the central role of ascending
and descending connections of the hypothalamus. The Papez theory, in turn, was
extended by MacLean (1949, 1952), who called the forebrain emotional circuits the
visceral...
You must Login to view the entire paper.
If you are not a member yet, Sign Up for free!