FOLLOW THE CONNECTIONS

The knowledge graph.

Explore substances, mechanisms, and effects. Select a node to read its article and inspect the evidence.

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Mapping connections…

SubstanceConceptRelationship

A diamond connects all members of one relationship. Type filters keep qualifying context visible.

3 substances · 1 concepts · 2 relationships

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Substances

Concepts

Attentionoutcome

Relationships

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
- Caffeineindexed substance
- L-theanineindexed substance
- Methylphenidateindexed substance
Source 1 ↗
A small randomized study tested the combination. Co-study is not a recommendation to combine substances.
- Attentionmeasured-outcome
- Caffeineco-exposure
- L-theanineco-exposure
Source 1 ↗

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.