Excessive activity of dopamine is associated with:
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → Schizophrenia
Abnormal activity of certain neurotransmitters can lead to specific psychological disorders.
Option (1) Depression — Incorrect. Depression has been linked to low activity of serotonin, not to dopamine.
Option (2) Schizophrenia — Correct. Schizophrenia has been linked to excess activity of dopamine.
Option (3) Anxiety — Incorrect. Anxiety disorders have been linked to low activity of gamma aminobutyric acid (GABA).
Option (4) Phobia — Incorrect. A phobia is an irrational fear of specific objects, people or situations. It is one of the anxiety disorders, which are linked to low GABA activity, not to excess dopamine.
Note: A similar question was also asked in CUET (UG) 2025 on 21-05-2025 (Slot 1).
NCERT (2025-26): “Factors Underlying Abnormal Behaviour … Studies indicate that abnormal activity by certain neuro-transmitters can lead to specific psychological disorders. Anxiety disorders have been linked to low activity of the neurotransmitter gamma aminobutyric acid (GABA), schizophrenia to excess activity of dopamine, and depression to low activity of serotonin.…” “Anxiety Disorders … People who have phobias have irrational fears related to specific objects, people, or situations.…” |