{"id":"https://openalex.org/W784396307","doi":null,"title":"Evening dietary tryptophan improves post-sleep behavioral and brain measures of memory function in healthy subjects","display_name":"Evening dietary tryptophan improves post-sleep behavioral and brain measures of memory function in healthy subjects","publication_year":2006,"publication_date":"2006-01-01","ids":{"openalex":"https://openalex.org/W784396307","mag":"784396307"},"language":"en","primary_location":{"id":"pmh:oai:cris.maastrichtuniversity.nl:openaire_cris_publications/ae1de59c-aad2-4a99-b5c0-c86623cb857e","doi":null,"is_oa":false,"landing_page_url":"https://cris.maastrichtuniversity.nl/en/publications/ae1de59c-aad2-4a99-b5c0-c86623cb857e","pdf_url":null,"source":{"id":"https://openalex.org/S4306402616","display_name":"Research Publications (Maastricht University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I34352273","host_organization_name":"Maastricht University","host_organization_lineage":["https://openalex.org/I34352273"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Markus, C R, Jonkman, L M, Lammers, J H C M & Deutz, N E P 2006, 'Evening dietary tryptophan improves post-sleep behavioral and brain measures of memory function in healthy subjects', Current Topics in Nutraceutical Research, vol. 4, no. 2, pp. 79-87.","raw_type":"info:eu-repo/semantics/article"},"volume":null,"type":"article","indexed_in":[],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5113859673","display_name":"C. Rob Markus","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Markus, C.R.","raw_affiliation_strings":["Clinical Psychological Science"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Clinical Psychological Science","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5032547465","display_name":"Lisa M. Jonkman","orcid":"https://orcid.org/0000-0003-4057-6066","observed_orcids":["https://orcid.org/0000-0003-4057-6066"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Jonkman, L.M.","raw_affiliation_strings":["Cognitive Neuroscience"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Cognitive Neuroscience","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5113533048","display_name":"Jan H.C.M. Lammers","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Lammers, J.H.C.M.","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5073459667","display_name":"Nicolaas E.P. Deutz","orcid":"https://orcid.org/0000-0001-5845-6447","observed_orcids":["https://orcid.org/0000-0001-5845-6447"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Deutz, N.E.P.","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.1611,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":{"value":0.51451725,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10985","display_name":"Sleep and Wakefulness Research","score":0.9657999873161316,"subfield":{"id":"https://openalex.org/subfields/2805","display_name":"Cognitive Neuroscience"},"field":{"id":"https://openalex.org/fields/28","display_name":"Neuroscience"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},"topics":[{"id":"https://openalex.org/T10985","display_name":"Sleep and Wakefulness Research","score":0.9657999873161316,"subfield":{"id":"https://openalex.org/subfields/2805","display_name":"Cognitive Neuroscience"},"field":{"id":"https://openalex.org/fields/28","display_name":"Neuroscience"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T11337","display_name":"Tryptophan and brain disorders","score":0.027499999850988388,"subfield":{"id":"https://openalex.org/subfields/2803","display_name":"Biological Psychiatry"},"field":{"id":"https://openalex.org/fields/28","display_name":"Neuroscience"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T10316","display_name":"Sleep and related disorders","score":0.0027000000700354576,"subfield":{"id":"https://openalex.org/subfields/3205","display_name":"Experimental and Cognitive Psychology"},"field":{"id":"https://openalex.org/fields/32","display_name":"Psychology"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/tryptophan","display_name":"tryptophan","score":0.8450000286102295},{"id":"https://openalex.org/keywords/dietary-tryptophan","display_name":"dietary tryptophan","score":0.7760000228881836},{"id":"https://openalex.org/keywords/sleep","display_name":"sleep","score":0.48500001430511475},{"id":"https://openalex.org/keywords/memory-consolidation","display_name":"memory consolidation","score":0.6710000038146973},{"id":"https://openalex.org/keywords/serotonin","display_name":"serotonin","score":0.8519999980926514},{"id":"https://openalex.org/keywords/large-neutral-amino-acids","display_name":"large neutral amino acids","score":0.7490000128746033},{"id":"https://openalex.org/keywords/plasma-amino-acids","display_name":"plasma amino acids","score":0.7350000143051147},{"id":"https://openalex.org/keywords/event-related-potentials","display_name":"event-related potentials","score":0.7440000176429749},{"id":"https://openalex.org/keywords/sleep-complaints","display_name":"sleep complaints","score":0.628000020980835}],"concepts":[{"id":"https://openalex.org/C2775864247","wikidata":"https://www.wikidata.org/wiki/Q167934","display_name":"Serotonin","level":3,"score":0.709160566329956},{"id":"https://openalex.org/C2776476923","wikidata":"https://www.wikidata.org/wiki/Q7725","display_name":"Evening","level":2,"score":0.6975475549697876},{"id":"https://openalex.org/C134018914","wikidata":"https://www.wikidata.org/wiki/Q162606","display_name":"Endocrinology","level":1,"score":0.6880391240119934},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.6759227514266968},{"id":"https://openalex.org/C2775841894","wikidata":"https://www.wikidata.org/wiki/Q4683692","display_name":"Sleep (system call)","level":2,"score":0.6561329960823059},{"id":"https://openalex.org/C19720800","wikidata":"https://www.wikidata.org/wiki/Q7722","display_name":"Morning","level":2,"score":0.6242512464523315},{"id":"https://openalex.org/C2776706248","wikidata":"https://www.wikidata.org/wiki/Q181003","display_name":"Tryptophan","level":3,"score":0.5725589394569397},{"id":"https://openalex.org/C15744967","wikidata":"https://www.wikidata.org/wiki/Q9418","display_name":"Psychology","level":0,"score":0.4591173529624939},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.36317431926727295},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.1737549602985382},{"id":"https://openalex.org/C515207424","wikidata":"https://www.wikidata.org/wiki/Q8066","display_name":"Amino acid","level":2,"score":0.09575986862182617},{"id":"https://openalex.org/C55493867","wikidata":"https://www.wikidata.org/wiki/Q7094","display_name":"Biochemistry","level":1,"score":0.09558331966400146},{"id":"https://openalex.org/C170493617","wikidata":"https://www.wikidata.org/wiki/Q208467","display_name":"Receptor","level":2,"score":0.0},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","level":1,"score":0.0},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.0}],"mesh":[],"locations_count":5,"locations":[{"id":"pmh:oai:cris.maastrichtuniversity.nl:openaire_cris_publications/ae1de59c-aad2-4a99-b5c0-c86623cb857e","doi":null,"is_oa":false,"landing_page_url":"https://cris.maastrichtuniversity.nl/en/publications/ae1de59c-aad2-4a99-b5c0-c86623cb857e","pdf_url":null,"source":{"id":"https://openalex.org/S4306402616","display_name":"Research Publications (Maastricht University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I34352273","host_organization_name":"Maastricht University","host_organization_lineage":["https://openalex.org/I34352273"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Markus, C R, Jonkman, L M, Lammers, J H C M & Deutz, N E P 2006, 'Evening dietary tryptophan improves post-sleep behavioral and brain measures of memory function in healthy subjects', Current Topics in Nutraceutical Research, vol. 4, no. 2, pp. 79-87.","raw_type":"info:eu-repo/semantics/article"},{"id":"pmh:oai:oai-pmh.tno.nl:21972","doi":null,"is_oa":false,"landing_page_url":"https://resolver.tno.nl/uuid:4fbf9763-c742-4cf7-a9e3-2dec2cc28640","pdf_url":null,"source":{"id":"https://openalex.org/S7407055233","display_name":"TNO Repository","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Current Topics in Nutraceutical Research, 4(2), pp. 79-88.","raw_type":"info:eu-repo/semantics/article"},{"id":"pmh:oai:tudelft.nl:uuid:4fbf9763-c742-4cf7-a9e3-2dec2cc28640","doi":null,"is_oa":false,"landing_page_url":"http://resolver.tudelft.nl/uuid:4fbf9763-c742-4cf7-a9e3-2dec2cc28640","pdf_url":null,"source":{"id":"https://openalex.org/S4306402238","display_name":"Repository hosted by TU Delft Library (TU Delft)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I98358874","host_organization_name":"Delft University of Technology","host_organization_lineage":["https://openalex.org/I98358874"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Current Topics in Nutraceutical Research, 2, 4, 79-88","raw_type":"article"},{"id":"pmh:tno:oai:tudelft.nl:uuid:4fbf9763-c742-4cf7-a9e3-2dec2cc28640","doi":null,"is_oa":false,"landing_page_url":"http://resolver.tudelft.nl/uuid:4fbf9763-c742-4cf7-a9e3-2dec2cc28640","pdf_url":null,"source":{"id":"https://openalex.org/S4306401843","display_name":"Data Archiving and Networked Services (DANS)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I1322597698","host_organization_name":"Royal Netherlands Academy of Arts and Sciences","host_organization_lineage":["https://openalex.org/I1322597698"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"info:eu-repo/semantics/article"},{"id":"pmh:um:oai:cris.maastrichtuniversity.nl:publications/ae1de59c-aad2-4a99-b5c0-c86623cb857e","doi":null,"is_oa":false,"landing_page_url":"https://cris.maastrichtuniversity.nl/en/publications/ae1de59c-aad2-4a99-b5c0-c86623cb857e","pdf_url":null,"source":{"id":"https://openalex.org/S4306402616","display_name":"Research Publications (Maastricht University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I34352273","host_organization_name":"Maastricht University","host_organization_lineage":["https://openalex.org/I34352273"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Current Topics in Nutraceutical Research, 4(2), 79 - 87. New Century Health Publishers","raw_type":"info:eu-repo/semantics/article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.9537000060081482,"display_name":"Good health and well-being","id":"https://metadata.un.org/sdg/3"}],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W1942982649","https://openalex.org/W2415206602","https://openalex.org/W2124402458","https://openalex.org/W2017109244","https://openalex.org/W2417410264","https://openalex.org/W7065603444","https://openalex.org/W2185306395","https://openalex.org/W4414600583","https://openalex.org/W2076857188","https://openalex.org/W2000621877"],"abstract_inverted_index":{"Brain":[0],"serotonin":[1,21,26,31],"function":[2,32,109,220],"has":[3],"been":[4],"implicated":[5],"in":[6,55,77,110,128,162,187,197,205,226],"the":[7,25,56,62,65,93,136,163,198],"control":[8,126],"of":[9,24,58,64,88,107,184,215],"sleep":[10,12,38,81,98,114,122,141],"and":[11,33,40,99,104,116,124,204,210],"related":[13],"memory":[14,74,108,146,188,216,219],"dysfunctions":[15],"are":[16],"attributed":[17],"to":[18,36,61,142],"deficient":[19],"brain":[20,30,48,105,176,213],"activity.":[22],"Depletion":[23],"precuisor":[27],"tryptophan":[28,49,60],"reduces":[29],"is":[34],"found":[35],"cause":[37],"abnormalities":[39],"cognitive":[41],"decline":[42],"We":[43],"hypothesized":[44],"that":[45],"enhancing":[46],"pre-sleep":[47,223],"availability":[50],"via":[51],"a":[52,89,129,194],"dietary":[53,224],"increase":[54,196],"ratio":[57,96,166,201],"plasma":[59,94,164,199,227],"sum":[63],"other":[66],"large":[67],"neutral":[68],"amino":[69],"acids":[70],"(Trpl/LNAA)":[71],"improves":[72,100,221],"post-sleep":[73,145],"functioning":[75],"particularly":[76],"subjects":[78,111,119,207],"with":[79,112,120],"mild":[80,113,121],"complaints.":[82],"To":[83],"test":[84],"whether":[85],"evening":[86,151],"intake":[87],"tryptophan-rich":[90,154,191],"diet":[91,152,192],"increases":[92,225],"Trp/LNAA":[95,165,200],"before":[97],"early":[101],"morning":[102],"behavioral":[103,171],"measures":[106,214],"complaints":[115,123],"control.":[117],"Twenty-eight":[118],"28":[125],"participated":[127],"double-blind":[130],"placebo-controlled":[131],"study.":[132],"They":[133],"stayed":[134],"at":[135],"laboratory":[137],"for":[138],"an":[139,150,182],"overnight":[140],"monitor":[143],"their":[144],"performance":[147],"following":[148],"either":[149],"containing":[153],"protein":[155],"or":[156],"placebo":[157],"protein.":[158],"Evening":[159],"dietary-induced":[160],"changes":[161,186],"were":[167],"measured":[168,180],"Besides":[169],"measuring":[170],"changes,":[172],"also":[173],"task-related":[174],"electroencephalographic":[175],"activity":[177],"(ERP)":[178],"was":[179],"as":[181],"index":[183],"cerebral":[185],"function.":[189,217],"The":[190],"caused":[193],"130%":[195],"(P=":[202],"0.0001)":[203],"all":[206],"improved":[208,231],"behavioral(P=0.001)":[209],"ERP":[211],"(P=0.05)":[212],"Post-sleep":[218],"after":[222],"TRP/LNAA":[228],"probably":[229],"by":[230],"sleep.":[232]},"counts_by_year":[],"updated_date":"2026-10-19T09:35:57.686232","created_date":"2016-06-24T00:00:00"}
