{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,16]],"date-time":"2026-10-16T19:19:27Z","timestamp":1792178367187,"version":"4.4.0"},"reference-count":0,"publisher":"S. Karger AG","issue":"4","license":[{"start":{"date-parts":[[1999,1,1]],"date-time":"1999-01-01T00:00:00Z","timestamp":915148800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/www.karger.com\/Services\/SiteLicenses"},{"start":{"date-parts":[[1999,1,1]],"date-time":"1999-01-01T00:00:00Z","timestamp":915148800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.karger.com\/Services\/SiteLicenses"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Neuropsychobiology"],"published-print":{"date-parts":[[1999]]},"abstract":"<jats:p>To search for a possible relationship between brain energy metabolism and mental fatiguability, 10 normal volunteers were examined by &lt;sup&gt;31&lt;\/sup&gt;P-MRS (phosphorus-31 magnetic resonance spectroscopy) in the occipital cortex during photic stimulation (PS), and Uchida-Kraepelin test (UKT), a standardized serial calculation task, was used for measurement of intraindividual characteristics of mental fatigue in these subjects. More decrease of phosphocreatine measured by &lt;sup&gt;31&lt;\/sup&gt;P-MRS during the PS was significantly associated with more effects of rest assessed by UKT (r = \u20130.86, p &lt;0.005). More decrease in pH after PS was associated with steeper decline of performance (r = 0.78, p &lt;0.01). These findings suggest that characteristics of brain energy metabolism in an individual may relate to intrinsic patterns of mental fatigability.<\/jats:p>","DOI":"10.1159\/000026587","type":"journal-article","created":{"date-parts":[[2003,4,15]],"date-time":"2003-04-15T09:24:25Z","timestamp":1050398665000},"page":"214-218","source":"Crossref","is-referenced-by-count":22,"title":["Relationship of Energy Metabolism Detected by &lt;sup&gt;31&lt;\/sup&gt;P-MRS in the Human Brain with Mental Fatigue"],"prefix":"10.1159","volume":"39","author":[{"given":"Tadafumi","family":"Kato","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jun","family":"Murashita","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Toshiki","family":"Shioiri","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Toshiro","family":"Inubushi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nobumasa","family":"Kato","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"127","published-online":{"date-parts":[[1999,5,14]]},"container-title":["Neuropsychobiology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.karger.com\/Article\/Pdf\/26587","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/www.karger.com\/Article\/Pdf\/26587","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,4,24]],"date-time":"2025-04-24T03:59:27Z","timestamp":1745467167000},"score":1,"resource":{"primary":{"URL":"https:\/\/karger.com\/article\/doi\/10.1159\/000026587"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1999]]},"references-count":0,"journal-issue":{"issue":"4","published-online":{"date-parts":[[1999,5,1]]}},"URL":"https:\/\/doi.org\/10.1159\/000026587","archive":["Portico"],"relation":{},"ISSN":["0302-282X","1423-0224"],"issn-type":[{"value":"0302-282X","type":"print"},{"value":"1423-0224","type":"electronic"}],"subject":[],"published":{"date-parts":[[1999]]}}}