Lecture 4 - Fear and Anxiety
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Lecture 4 - Fear and Anxiety
Psyc 153 Midterm 1
Psyc 153 Lecture 4
Fear can be a...
fxn and dysfxn
physical and phsycological
appraisals can change the way you experience fear
Fear vs. anxiety
much overlap but the diff might be:
:escape to avoid threat
:lacks clear enternal threat, may be undirected fear, may include other emotions as well
come into the world to be predisposed to fear certain stimuli
need very little exposure to feel this fear
not necessarily innate releasers (min. exposure to environment)
need min expo. –> quickly learn fear
Rheus Monkey Study (Mineka)
Study 1 Results
: strong fear to snake-like objects
Study 2 Results
: Monkeys learned to be scared at a fear-relevant stimuli and NOT to the fear-irrelevant stimuli
Conclusion fo Mineka's study
fear can be learned thru modeling and observational learning
certain stimuli readily become feared
pre-wired tendency may focus attention on relevant varaibles
Is agoraphobia a simple phobia?
Is social anxiety a simple phobia?
fear of particular object or situation (animals, heights, closed spaces)
exposure of the stimuli almost ALWAYS produces fear
fear varies with distance
When is it a disorder?
causes severe distress
markedly interferes with your life
Panic disorder with agoraphobia
ppl with no apparent reason have panic attacks
pounding heart, nausea, dizzyness, sweating
dreading of somethingintense dread, terror
suddent onset that lasts min.
when is a panic attach a disorder?
at least 4 attacks in 4 weeks
unpredictable onset of panic attacks
not linked with specific stimuli or situation
what do ppl with PD w/ agoraphobia avoid?
situations where they could not get help if attack occurs
the escape would be socially embarrassing
more common in females
Where does the initial unexpected attack usually occur?
often in public, oftern under conditions of chronic anxiety
fear further stimuli and avoid certain stimuli
fear of behaving in an embarrassing fashion in front of others
when is it a phobia?
interferes with normal routine
Social phobia vs anxiety
Social phobia ppl would rather go out if they know they will not see anyone
Ppl with anxiety attacks fear not being with someone else
excessive and unrealistic unrealistic worry and anxiety about 2 or more life circumstances
occur more than 6 month period
Signs of GAD
shortness of breath
Hypothalamus when intact or with lesions
: coordinated rage rxn in cats when provoked, organized rage display
: unorganized rage rxn but still shows rage rxn
hippocampus is mostly involved
located in temporal lobe
LaDoux's dual pathways
neuroanatomical support for 2 pathways
high vs low road to emotional rxn
the "low road"
emotional rxn precede cognitive analysis of N stimuli
direct shorter path
rough approximation due to speed
the "high road"
emotional rxn are based on apprasials
override direct pathway
detail accurate of world
Fear and the amygdala
Amygdala not necessary for subject to feel fear
necessary fir aversive conditioning
cannot learn new fears
also involved w/ recognition of fearful faces