Many soldiers returning from the war in Iraq have suffered from post-traumatic stress disorder (PTSD). However, your friend from high school who has returned from a protracted active deployment seems to be coping well even though he had some truly horrible experiences. How might you explain this with regard to the biological and environmental contributions to behaviour?
A) He may not have a genetic susceptibility to PTSD.
B) Environment isn't an important factor in determining behaviour.
C) He inherited a genetic predisposition to PTSD.
D) The experiences really are not as bad as people say.

Question

Quizplus · Accepted Answer

Some individuals may not be genetically susceptible to developing PTSD, even after experiencing traumatic events.

Answer: B and C are incorrect 
 Environment is a crucial factor in determining behaviour, and while genetics can play a role in predisposition to mental health conditions, there is no evidence to suggest that your friend inherited a genetic predisposition to PTSD.

Answer: D is incorrect 
 PTSD can have severe effects on individuals and their mental health, and it is important to acknowledge and support those who may be experiencing symptoms. Denying the severity of these experiences is not helpful or accurate.

Many Soldiers Returning from the War in Iraq Have Suffered