Increased suicidal tendency is associated with alteration in the brain levels of:: (A) Noradrenaline, (B) Serotonin, (C) Dopamine, (D) GABA
Answer is B. Ans. (B) Serotonin(Ref: KDT 8/e p188)Decreased serotonin levels in brain is associated with depression (and suicidal tendencies) whereas elevated levels of 5-HT are associated with anxiety.