Panic attack is not a _________ and cannot be coded. Panic Disorder however can because it is ___________.
Mental Disorder
Repetitive
Sx of Panic attack
Difficulty Breathing, chest pain, hyperventilation, parasthesis, etc.
Panic/Anxiety: Role of Amygdala in the 3 part emotional processing of the brain
Stage 1, Evaluation: Amygdala is the evaluator = provides primary unconscious response to danger. Very “danger or no danger” based.
Stage 2, Expression: Stress Response via direct pathway (hypothalamus tract, cortisol) or indirect pathway (adrenal glands, cortisol + NE).
Stage 3: Subjective Emotion: Fear or Anxiety.
Which two portions of the Brain control the amygdala?
Medial PFC (Anterior Cingulate Cortex) + Hippocampus help inhibit amygdala to limit the stress response.
Describe the Degenerative Cascade
When excessive cortisol shuts down the hippocampus so it cannot inhibit the amygdala. As a result the amygdala becomes further activated => increased cortisol and therefore continuous shut down of the hippocampus = continuous stress.
F(x) of amygdala
Control center of emotional processing. Especially in response to potential threats.
Effects of GABA, Serotonin, and NE on stress.
GABA = inhibitory function in general, including the amygdala.
Serotonin and NE effects = not exactly known but Sertonin may modulate NE release from the Locus Coeruleus which would increase the action of the hippocampus.
PTSD: DSM-5, 6 symptoms
TRAUMA
PTSD: Details on Traumatic Events
PTSD: Differential Diagnosis (Many)
PTSD: First Line Therapy
SSRIs. Cognitive Behavioral Therapy is also good.
PTSD: Main Brain components involved and overall dysfunction
Amygdala and Hippocampus. From the lecture it sounds like dysfunction of the hippocampus to inhibit the Amygdala. Similar to the anxiety disorders…?
Case of Multiple Memory System
OCD Related: Dysfunction in the following areas of the brain (3)
OCD: Possible Manifestations in Brain Structure(3)
OCD: Motor functions of the striatum
D2 mediated (INDIRECT PATHWAY) = inhibits thalamus and therefore no excitatory signal to the cortex
D1 mediated (DIRECT PATHWAY) = DISinhibits thalamus and therefore excitatory signal to the cortex
OCD: Neurotransmistters heavily involved + f(x)
OCD: Steps of OCD + areas of Brain involved
Definition of Somatic Symptom Disorder
Excessive thoughts, feelings, or behaviors related to somatic symptoms (Sx already present)
Definition of Illness Anxiety Disorder
Preoccupation with having or acquiring a serious illness (Absent or mild Sx present)
Definition of Conversion Disorder + Tx.
A somatoform disorder involving actual loss of bodily functions due to anxiety (blindness, weakness, numbness, etc.)
Tx: Reassurance
Defintion of Factitious disorder
Falsification of physical or psychological symptoms but NO SECONDARY GAINS. Factitious disorder can be imposed on another person (like child)
Definition of Malingering
Falsification of symptoms with secondary gains.
Definition of Body Dysmorphic Disorder
Debilitating preoccupation with physical defect: real or imagined. “Big Ears.”