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Alpha direction varies with task and recording context; it is not a universal marker of relaxation.","comparator":null,"unit":null,"notes":"","entity":null},{"dimension":"nutrient_topic","value_text":"L-Theanine research collection; topical membership is not evidence of a direct dietary effect.","comparator":null,"unit":null,"notes":"","entity":{"slug":"theanine","display_name":"L-Theanine","entity_type_key":"small_molecule"}},{"dimension":"organism","value_text":"13 healthy humans","comparator":null,"unit":null,"notes":"","entity":null},{"dimension":"plain_language","value_text":"Background and task-evoked EEG activity are different endpoints.","comparator":null,"unit":null,"notes":"","entity":null},{"dimension":"primary_references","value_text":"[theanine-p18841456] The effects of L-theanine on alpha-band oscillatory brain activity during a visuo-spatial attention task. 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Alpha direction varies with task and recording context; it is not a universal marker of relaxation.\nexposure: 250 mg theanine\nevidence_span: {\"source_cache\": \"artifacts/theanine-research/18841456.abstract.txt\", \"locator\": \"Primary indexed abstract; zero-based, end-exclusive Unicode character offsets\", \"file_sha256\": \"ce2d441698792fe97dc093de2cd5758a3ccf088d3333151f302f06aea776f911\", \"start_char\": 0, \"end_char\": 2224, \"text_sha256\": \"ce2d441698792fe97dc093de2cd5758a3ccf088d3333151f302f06aea776f911\"}\n[theanine-p18841456] The effects of L-theanine on alpha-band oscillatory brain activity during a visuo-spatial attention task. (2009). https://pubmed.ncbi.nlm.nih.gov/18841456/ DOI: 10.1007/s10548-008-0068-z","model_system":"Counterbalanced visuospatial attention and EEG experiment","directness":"author_interpretation","verification_status":"source_derived_draft","notes":"Exact curation-document quotation, not publisher quotation. 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