1) What is neuroplasticity? a

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1) What is neuroplasticity?

a.Decreases in gray matter volume and increases in white matter with age

b.Changes in cellular content, physiology, and morphology in relation to brain development, aging, behavioral experience, etc.

c.LTP and LTD type of physiological effects

 

2.Which of the following is NOT a major challenge for studying and diagnosing anxiety disorders?

a.The neural indexes may change over the course of development

b.Diagnosis of anxiety disorder is mainly based on symptoms

c.The temporal resolution of the neural measures (e.g., ERPs) used is too low for capturing subtle mental activities during cognitive tasks (e.g., the Flanker task)

 

3.What kinds of neuroplasticity occur during postnatal development?

a. Changes in dendritic tree branches

b.Changes in neural signal transmission and metabolic rate

c.Changes in white matter density

d.A & C

e.All of these

 

4.To distinguish threat sensitivity in teenagers with various forms of anxiety disorders, Alex plans to deliver a mild electric shock in three experimental conditions: Condition I: no shock at any time of the trial, Condition II: one shock at a fixed time during the trial. Condition III: one shock at a random time during the trial. Alex would predict the largest physiological response in condition _____ for individuals with anxiety disorder and in condition ______ for healthy controls.

a.II, III

b.I, III

c.II, II

d.III, III

e.III, II

 

5.Which of the following are NOT true about anxiety disorders?

a.Women are twice as likely as men to experience an anxiety disorder

b.Anxiety disorders manifest due to dysregulation of a very concentrated, specific neural loop within the amygdala

c.They are the most prevalent class of mental illness in the US

d.Significant economic burden is associated with chronic anxiety

e.Childhood and young adulthood are the most critical periods for the emergence of anxiety disorder symptoms 

 

6.What is the main take-home message from the iPanda project that Dr. Nelson talked about in the class?

a.Child sensitivity to threat is more potentiated in children showing social phobia relative to those showing object phobia 

b.Child sensitivity to threat is related to blunted amygdala responses to sensory stimuli

c.Child sensitivity to threat is blunted in general

d.Child sensitivity to unpredictable threat is associated with both parental and child anxiety symptoms

 

7.Neuroimaging studies of diet effects on the human brain and cognition should consider all of the following factors, except:

a.Personal habits and eating style

b.Energy state

c.Impulsivity and cognitive control

d.Stress and health condition

e.All of these should be considered