| Cow milk allergen | Cow milk allergen | Biological | 6 | Yes |
| ACC-INACT | Anterior cingulate cortex inactivation | Biological | 1 | No |
| Advanced paternal age | Advanced paternal age | Biological | 5 | No |
| As | Arsenic | Chemical | 1 | No |
| BDE-47 | 2,2',4,4'-Tetrabromodiphenyl ether | Chemical | 1 | No |
| BPA | Bisphenol A | Chemical | 1 | No |
| Cerebellum inactivation | Cerebellum inactivation | Biological | 1 | No |
| Cntnap2Ab | Cntnap2 antibody | Biological | 2 | No |
| CPF | Chlorpyrifos | Chemical | 2 | No |
| CPO | Chlorpyrifos oxon | Chemical | 1 | No |
| CYP | Cypermethrin | Chemical | 3 | No |
| Diesel exhaust particles | Diesel exhaust particles | Chemical | 1 | No |
| DMS-ACT | Dorsomedial striatum activation | Biological | 1 | No |
| DRN-ACT | Dorsal raphe nucleus activation | Biological | 3 | No |
| DRN-INACT | Dorsal raphe nucleus inactivation | Biological | 1 | No |
| FD | Folate deficiency | Biological | 1 | No |
| FEN | Fenvalerate | Chemical | 2 | No |
| Fluoxetine | Fluoxetine | Chemical | 4 | Yes |
| Germ-free environment | Germ-free environment | Biological | 7 | Yes |
| LPS | Lipopolysaccharide | Biological | 3 | Yes |
| Maternal high-fat diet | Maternal high-fat diet | Biological | 6 | Yes |
| Imiquimod | Imiquimod | Chemical | 1 | No |
| Influenza | Human influenza virus | Biological | 3 | No |
| ISOLATION | Isolation | Biological | 2 | No |
| Maternal antibodies | Maternal antibodies | Biological | 2 | No |
| MPEP | 2-Methyl-6-(phenylethynyl)-pyridine | Chemical | 2 | No |
| PolyI:C | Polyinosinic:polycytidylic acid | Biological | 71 | Yes |
| n6PUFA | Omega-6 Polyunsaturated fatty acids | Biological | 1 | No |
| NA-ACT | Nucleus accumbens activation | Biological | 2 | No |
| NA-INACT | Nucleus accumbens inactivation | Biological | 1 | No |
| PAK-inhibitor | p21 protein activated kinase 1 inhibitor | Biological | 1 | No |
| rIL-17a | Recombinant interleukin 17a | Biological | 2 | Yes |
| rIL-6 | Recombinant interleukin 6 | Biological | 6 | Yes |
| SFB | Segmented filamentous bacteria | Biological | 5 | Yes |
| STRESS | Stress | Biological | 4 | Yes |
| Prenatal-Stress | Prenatal stress | Biological | 3 | No |
| SSCX-ACT | Somatosensory cortex activation | Biological | 13 | No |
| SSCX-INACT | Somatosensory cortex inactivation | Biological | 6 | No |
| Thiamine deficiency | Thiamine deficiency | Biological | 2 | No |
| Thm | Thimerosal | Chemical | 3 | No |
| VPA | Valproic acid | Chemical | 36 | Yes |
| VTA-ACT | Ventral tegmental area activation | Biological | 1 | No |
| VTA-INACT | Ventral tegmental area inactivation | Biological | 2 | No |
| DN Rac1 | Dominant negative Rac1 | Biological | 0 | No |
| Thalidomide | Thalidomide | Chemical | 0 | No |