| Tryptophan and brain disorders | Lifetime | 63 | IT 1 | 99.55 |
| Neurotransmitter Receptor Influence on Behavior | Lifetime | 78 | IT 3 | 99.52 |
| Bipolar Disorder and Treatment | Lifetime | 55 | IT 1 | 99.56 |
| Treatment of Major Depression | Lifetime | 40 | IT 1 | 99.63 |
| Genetics and Neurodevelopmental Disorders | Lifetime | 143 | IT 3 | 99.04 |
| Mental Health Research Topics | Lifetime | 136 | IT 1 | 99.20 |
| Schizophrenia research and treatment | Lifetime | 194 | IT 2 | 99.26 |
| Phosphodiesterase function and regulation | Lifetime | 62 | IT 3 | 97.24 |
| Mindfulness and Compassion Interventions | Lifetime | 107 | IT 2 | 97.45 |
| Receptor Mechanisms and Signaling | Lifetime | 956 | IT 34 | 97.96 |
| Anxiety, Depression, Psychometrics, Treatment, Cognitive Processes | Lifetime | 348 | IT 2 | 98.03 |
| Electroconvulsive Therapy Studies | Lifetime | 154 | IT 8 | 97.48 |
| Attention Deficit Hyperactivity Disorder | Lifetime | 510 | IT 8 | 96.86 |
| Genetic Associations and Epidemiology | Lifetime | 618 | IT 3 | 96.94 |
| Suicide and Self-Harm Studies | Lifetime | 425 | IT 10 | 96.69 |
| Pharmacogenetics and Drug Metabolism | Lifetime | 851 | IT 7 | 95.83 |
| Nuclear Receptors and Signaling | Lifetime | 362 | IT 4 | 95.15 |
| Personality Disorders and Psychopathology | Lifetime | 505 | IT 14 | 94.52 |
| Obsessive-Compulsive Spectrum Disorders | Lifetime | 745 | IT 35 | 94.25 |
| Tryptophan and brain disorders | 2021-2025 | 20 | IT 2 | 99.15 |
| Treatment of Major Depression | 2021-2025 | 8 | IT 1 | 99.39 |
| Bipolar Disorder and Treatment | 2021-2025 | 17 | IT 1 | 98.79 |
| Mental Health Research Topics | 2021-2025 | 99 | IT 1 | 97.64 |
| Schizophrenia research and treatment | 2021-2025 | 252 | IT 28 | 95.17 |
| Stress Responses and Cortisol | 2021-2025 | 321 | IT 14 | 91.52 |
| Genetic Associations and Epidemiology | 2021-2025 | 540 | IT 4 | 90.62 |
| Suicide and Self-Harm Studies | 2021-2025 | 395 | IT 8 | 91.04 |
| Anxiety, Depression, Psychometrics, Treatment, Cognitive Processes | 2021-2025 | 408 | IT 22 | 89.27 |
| Electroconvulsive Therapy Studies | 2021-2025 | 147 | IT 9 | 85.91 |
| Cardiac Health and Mental Health | 2021-2025 | 967 | IT 56 | 80.91 |
| Obsessive-Compulsive Spectrum Disorders | 2021-2025 | 515 | IT 66 | 82.02 |
| Neurotransmitter Receptor Influence on Behavior | 2021-2025 | 617 | IT 27 | 79.95 |
| Attention Deficit Hyperactivity Disorder | 2021-2025 | 925 | IT 35 | 78.00 |
| Pharmacogenetics and Drug Metabolism | 2021-2025 | 851 | IT 14 | 69.51 |
| Psychedelics and Drug Studies | 2021-2025 | 585 | IT 25 | 67.88 |
