Which disorder has been linked to an excess activity of dopamine neurotransmitter?
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → Schizophrenia
Abnormal activity of certain neurotransmitters can lead to specific psychological disorders.
Option (1) Anxiety — Incorrect. Anxiety disorders have been linked to low activity of gamma aminobutyric acid (GABA), not to dopamine.
Option (2) Depression — Incorrect. Depression has been linked to low activity of serotonin.
Option (3) Dissociative identity disorder — Incorrect. In this disorder the person assumes alternate personalities; it is often associated with traumatic experiences in childhood, not with a neurotransmitter.
Option (4) Schizophrenia — Correct. Schizophrenia has been linked to excess activity of dopamine.
Note: A similar question was also asked in CUET (UG) 2023 on 29-05-2023 (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.…” “Dissociative Disorders … Dissociative identity disorder, often referred to as multiple personality, is the most dramatic of the dissociative disorders. It is often associated with traumatic experiences in childhood.…” |