The knowledge graph.
Explore substances, mechanisms, and effects. Select a node to read its article and inspect the evidence.
Mapping connections…
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Substances
Concepts
- Stimulantclass
- Attentionoutcome
- Dopamine transportertarget
- Dopamineneurotransmitter
Relationships
Editorial index: substances classified under stimulant. This index does not assert a combined effect. Compounds associated with increased arousal; mechanisms and risks differ.
- Stimulantindex concept
- Methylphenidateindexed substance
Editorial index: substances classified under attention. This index does not assert a combined effect. Performance on tasks that test selecting or switching attention. A task result does not measure general intelligence or subjective focus.
- Attentionindex concept
- Methylphenidateindexed substance
Editorial index: substances classified under dopamine transporter. This index does not assert a combined effect. A membrane transporter involved in dopamine reuptake. Human PET studies can measure occupancy without establishing general cognitive benefit.
- Dopamine transporterindex concept
- Methylphenidateindexed substance
Editorial index: substances classified under dopamine. This index does not assert a combined effect. A neurotransmitter whose extracellular availability is influenced by dopamine transporters. Increased signaling is not a universal benefit.
- Dopamineindex concept
- Methylphenidateindexed substance
Oral administration produced transporter occupancy in a human PET study.
- Dopamine transportertarget
- Dopaminetransmitter
- Methylphenidatesubstance
Relationship nodes connect multiple concepts in one sourced statement. Member roles identify the substance, biological target, measured outcome, or exposure context. Editorial index relationships group classifications. Connections are not recommendations to combine substances.