Anorexia Nervosa is characterized by an abnormally low body weight
What is the distorted perception of body size in Anorexia Nervosa called?
Body image distortion
Match the neurotransmitter or hormone with its role in Anorexia Nervosa:
Serotonin ↔️ Obsessive behavior and anxiety
Dopamine ↔️ Reward perception and eating habits
Ghrelin ↔️ Reduced sensitivity to hunger
Leptin ↔️ Disrupted satiety signals
Twin studies show that identical twins have higher concordance rates than fraternal twins.
Who conducted a twin study in 2000 that highlighted the genetic influence on anorexia nervosa?
Strober et al.
Neurochemical influences in anorexia nervosa affect appetite regulation, reward perception, and emotional state.
Arrange the following neurochemicals or hormones based on their role in anorexia nervosa, starting with those affecting anxiety and obsessive behavior:
1️⃣ Serotonin
2️⃣ Dopamine
3️⃣ Ghrelin
4️⃣ Leptin
Which neurochemical is associated with anxiety and obsessive behaviors in anorexia nervosa?
Serotonin
Lower levels of leptin in anorexic individuals disrupt satiety signals.
Genetic factors contribute 50-80% to the risk of anorexia nervosa.
Which type of twin studies show higher concordance rates for anorexia nervosa?
Identical
Environmental factors can completely negate the genetic contribution to anorexia nervosa.
False
What are the key neurochemicals involved in Anorexia Nervosa?
Serotonin, Dopamine, Ghrelin, Leptin
Serotonin regulates anxiety and obsessive behaviors
Which neurochemical influences reward perception in Anorexia Nervosa?
Dopamine
Ghrelin is responsible for signaling satiety in the body.
False
Leptin signals satiety
Match the neurochemical with its role in Anorexia Nervosa:
Serotonin ↔️ Regulates anxiety
Dopamine ↔️ Influences reward
Ghrelin ↔️ Regulates appetite
Leptin ↔️ Signals satiety
Neurochemicals contribute to Anorexia Nervosa by affecting physiological and psychological processes.
What are the key brain regions affected in Anorexia Nervosa?
Hypothalamus, amygdala, prefrontal cortex
The hypothalamus plays a critical role in appetite control
Which brain region is associated with emotional processing and anxiety in Anorexia Nervosa?
Amygdala
Decreased prefrontal cortex activity may impair decision-making and self-control in Anorexia Nervosa.
Arrange the following brain regions based on their altered activity in Anorexia Nervosa:
1️⃣ Hypothalamus (Reduced activity)
2️⃣ Amygdala (Increased activity)
3️⃣ Prefrontal Cortex (Decreased activity)
What is the estimated heritability of Anorexia Nervosa?
50-80%
Brain structure changes in Anorexia Nervosa could be secondary to malnutrition
Environmental factors, such as cultural beauty standards, are not addressed by biological explanations of Anorexia Nervosa.