行動的覚醒維持法によるマイクロスリープの実験的検討
広　重　佳　治
地域学論集（鳥取大学地域学部紀要）第１巻　第１号　抜刷
REGIONAL STUDIES (TOTTORI UNIVERSITY JOURNAL OF THE FACULTY OF REGIONAL SCIENCES) Vol. 1/No.1
平成 16 年 11 月 30 日発行　November 30, 2004
ⴕേ⊛ⷡ㉕⛽ᜬᴺߦࠃࠆࡑࠗࠢࡠࠬ࡝࡯ࡊߩታ㛎⊛ᬌ⸛
ᐢ㊀૫ᴦ
ࠠ࡯ࡢ࡯࠼㧦 ࡑࠗࠢࡠࠬ࡝࡯ࡊ㧘ⷡ㉕ߣ⌧⌁ߩ⒖ⴕ㧘੤ઍᑼ VCR ㆇേ㧘ᗵ࿶࠮ࡦࠨ
ߪߓ߼ߦ
ⷡ㉕ߣ⌧⌁ߩ⒖ⴕߪㅪ⛯⊛ߢ޽ࠆߣផ᷹ߐࠇߡ޿ࠆ߇㧔Kleitman, 1987㧕㧘ߘߩㅪ⛯ᕈࠍታ⸽ߒߚ
ߣߔࠆႎ๔ߪߥ޿‫ޕ‬⣖ᵄ࡮⌒⃿ㆇേ࡮╭㔚૏߆ࠄߥࠆ⌧⌁ࡐ࡝ࠣ࡜ࡈ⸥㍳㧔polysomnography㧕ߪ⏕
߆ߦᤨ‫ޘ‬ೞ‫ߣޘ‬ផ⒖ߔࠆⷡ㉕᳓Ḱߩ᭽⋧ࠍߺߖߡߊࠇࠆ߇㧘ߢߪੱ߇⌁ࠅߦߟߊ౉⌁㧔sleep onset㧕
ߪ޿ߟߢ޽ࠆߩ߆㧘޽ࠆ޿ߪⷡ㉕ߪߤߎߢ⚳ੌߒߚߩ߆㧘ߘ߁ߒߚᗧ⼂⁁ᘒߩᄌൻὐࠍ․ቯߔࠆߎ
ߣߪᱷᔨߥ߇ࠄߢ߈ߡ޿ߥ޿‫⃻ޕ‬ઍߩ⌧⌁⑼ቇ߇↪޿ࠆ⌧⌁Ბ㓏ߪ⌧⌁ࡐ࡝ࠣ࡜ࡈ⸥㍳ߦၮߠ޿ߡ
್ቯߐࠇࠆ⌁ࠅߩᷓߐߩ↢ℂቇ⊛ኻઙߢ޽ࠆ߇㧘Ყセ⊛㐳ߊ⛯ߊ቟ቯ⁁ᘒ㧔ㅢᏱ ⑽㨪 ⑽㧕ࠍ
೨ឭߣߒߡ޿ࠆ߆ࠄ㧘ߎࠇߢ߽ߞߡ౉⌁ߩ․ቯ޽ࠆ޿ߪ್ቯࠍⴕ߁ߎߣߪߘࠇ⥄૕ߦήℂ߇޽ࠆ‫ޕ‬
ട߃ߡ㧘౉⌁್ቯߦߪᲑ㓏㧝ၮḰ߿Ბ㓏㧞ၮḰߩ૬↪ߣ޿߁ቯ⟵ߩᄙ⟵ᕈߩ໧㗴߽޽ࠆ‫ߚߒ߁ߎޕ‬
੐ᖱࠍ⢛᥊ߦᰴߩࠃ߁ߥ৻ߟߩ╵߃߇ዉ߆ࠇߡ޿ࠆ‫ࠅ߹ߟޕ‬㧘౉⌁ߪߎࠇࠍታ૕ߣߒߡ․ቯߔࠆߎ
ߣߦߪᗧ๧߇ߥߊ㧘↢ℂߣⴕേߘࠇߙࠇߩ᳓Ḱߢᠲ૞⊛ߦቯ⟵ߐࠇߚ᭎ᔨߦߔ߉ߥ޿ߣߔࠆ⠨߃ߢ
޽ࠆ㧔Rechtschaffen, 1994㧕‫ߚߒ߁ߘޕ‬ᠲ૞ਥ⟵߇໧㗴ߩ⸃᳿ߦߤࠇ߶ߤ᦭ലߢ޽ࠆ߆ߪቯ߆ߢߥ޿‫ޕ‬
ઁᣇߢ㧘ⷡ㉕ߣ⌧⌁ߩ⒖ⴕ໧㗴ߦᣂߒ޿ⷞὐࠍᜬߜㄟ߻⹜ߺ߇޽ࠆ‫⎇ߩߘޕ‬ⓥ଀ߣߒߡߪ↢ℂ࡮ⴕ
േ࡮ᔃℂᄌᢙߦࠃࠆ౉⌁ᦼߩ෼᧤⊛ផቯ㧔Ogilvie, Wilkinson, & Allison, 1989㧕㧘౉⌁ᦼߩ⣖ᵄᲑ㓏ಽ㘃
㧔Hori, Hayashi, & Morikawa, 1994㧕޽ࠆ޿ߪ✭ᓢ⌒⃿ㆇേ㧔slow eye movements: SEMs㧕ߩᶖ㐳ࠍਥ
ᓽߣߔࠆ౉⌁⁁ᘒߩࡕ࠺࡞ൻ㧔ᐢ㊀㧕ߥߤ߇޽ࠆ‫ߪ࠴࡯ࡠࡊࠕߩࠄࠇߎޕ‬વ⛔⊛ߥ⌧⌁Ბ㓏
㧔․ߦ㧘Ბ㓏㧝㧕ߩ⷗⋥ߒߩᔅⷐᕈࠍ␜ໂߒߡ޿ࠆ‫ޕ‬
ⷡ㉕⁁ᘒߦ໊⓭߆ߟ⍍ᤨߦഀࠅㄟ߻ᓸዊߥ⌧⌁ߢ޽ࠆࡑࠗࠢࡠࠬ࡝࡯ࡊ㧔microsleep㧕ߪ㧘ⷡ㉕ߣ
⌧⌁ߩ⒖ⴕ㑐ଥࠍᬌ⸽ߔࠆ਄ߢ⥝๧ᷓ޿⃻⽎ߣᕁࠊࠇࠆ‫ᤨߩߘޕ‬㑆⊛ߥ⍴๮ߐߦ߽߆߆ࠊࠄߕ㧘ࡑ
ࠗࠢࡠࠬ࡝࡯ࡊߪᣣᏱ↢ᵴߩⴕേߦਈ߃ࠆᓇ㗀߇ᗧᄖߣᄢ߈޿ᗧ⼂⁁ᘒߢ޽ࠆߣ⠨߃ࠄࠇࠆ‫ߩߘޕ‬
ߎߣࠍ߽ߞߣ߽┵⊛ߦ␜ߔ⥃ᐥ௝ߪ‫⥄ޟ‬േⴕേ∝୥⟲(automatic behavior syndrome)‫ߣޠ‬๭߫ࠇࠆ∝
⁁ߢ޽ࠆ‫⥄ߪࠇߎޕ‬േゞߩㆇォ㧘㘩ེᵞ޿㧘ࠦࡦࡇࡘ࡯࠲ߩᠲ૞㧘ᢱℂߥߤߩᦨਛߦ⓭ᅤ㧘ⴕὑߩ
⥄ⷡ߇ᶖ߃ᄬߖߡᣇะ߿૏⟎ߩⓨ㑆ቯ૏޽ࠆ޿ߪᤨ㑆⊛ㅪ⛯ᕈߩᗧ⼂߇৻ᤨ⊛ߦᰳ⪭ߒ㧘ߘߩ⚿ᨐ㧘
ߒ ߊ ߓ ࠅ ⴕ ὑ ߣ ߆ ↢ ๮ ߦ 㑐 ࠊ ࠆ ෂ 㒾 ߥ ⴕ ὑ ࠍ ߊ ࠅ ㄰ ߔ ⴕ േ ⁁ ᘒ ߢ ޽ ࠆ 㧔Guilleminaut, Billard,
Montplaisir, & Dement, 1975㧧Horne & Reyner, 1995㧕‫⥄ޕ‬േⴕേ∝୥⟲ߪㆊᐲߩ⌁᳇ࠍ⸷߃ࠆㆊ⌁∝
ᖚ⠪㧔hypersominacs㧕ߢ․ߦ㗼⪺ߢ޽ࠆߣߐࠇߡ޿ࠆ߇㧘ஜᏱ⠪ߦ߅޿ߡ߽㐳〒㔌ᄛⴕ೉ゞߩㆇォ
㧔Åkerstedt,1988㧕㧘ㅪ⛯ 72 ᤨ㑆એ਄ߩోᢿ⌁⁁ᘒ㧔Johnson,1982㧕޽ࠆ޿ߪන⚐૞ᬺ੐ᘒ㧔Carskadon
& Dement,1979㧕ߢห᭽ߩⴕേ⁁ᘒ߇ߺࠄࠇߡ޿ࠆ‫ ޕ‬
࿾ၞᢎ⢒ቇ⑼㧔&GRCTVOGPV of Regional Education㧕
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地 域 学 論 集 第 １ 巻 第 １ 号（2004）
ࡑࠗࠢࡠࠬ࡝࡯ࡊߩ↢ℂ⊛․ᓽߦ㑐ߔࠆ⹦⚦ߥႎ๔ߪᄙߊߥ޿ࠃ߁ߢ޽ࠆ߇㧘৻⥸ߦǩᵄߩᰳᅤ
޽ࠆ޿ߪǰᵄ߿㗡㗂ㇱ㍈ᵄߩ಴⃻ߣ޿߁⣖ᵄ௝㧔Guilleminaut, Billard, Montplaisir, & Dement, 1975㧕㧘
5'/U ߩ಴⃻㧔Harrison & Horne,1996㧕߇⹺߼ࠄࠇߡ޿ࠆ‫․ߚߒ߁ߘޕ‬ᓽ߆ࠄࡑࠗࠢࡠࠬ࡝࡯ࡊࠍᲑ
㓏㧝ߩᧂᚑᾫߢᢿ ⊛ߥ಴⃻ߣห⟵ߣߺߥߔ㘃ផ߇↢߹ࠇ߿ߔ޿߇㧘ߘ߁ߒߚ⠨߃ᣇߪ⚻ㆊߩ㐳޿
቟ቯ⁁ᘒࠍᗐቯߒߚᲑ㓏᭎ᔨߣߪ᣿ࠄ߆ߦ⍦⋫ߔࠆ‫↢ޕ‬ℂᜰᮡߩߺߢࡑࠗࠢࡠࠬ࡝࡯ࡊࠍ․ᓽߠߌ
ࠆߎߣߪኈᤃߢߥ޿ߣᕁࠊࠇࠆ‫ⴕߩࡊ࡯࡝ࠬࡠࠢࠗࡑޕ‬േ⊛․ᓽߩ⸃᣿ߪ㧘ߘߩ↢ℂ⊛․ᓽ߳ߩࠕ
ࡊࡠ࡯࠴ߦ߅޿ߡၮᧄߣߥࠆᄖ⊛ᨒ⚵ߺࠍឭଏߔࠆ߽ߩߣ⠨߃ࠄࠇࠆ‫⥄ޟޕ‬േⴕേ∝୥⟲‫ࠇߘ߿ޠ‬
ߦ㘃ߒߚⴕേ߆ࠄផ᷹ߐࠇࠆࠃ߁ߦ㧘ߘߩⴕേ⊛․ᓽࠍታ㛎⊛ߦᬌ⸽ߔࠆ㓙ߦߪ㧘ᰴߩࠃ߁ߥⵍ㛎
⠪ࡍ࡯ࠬߩන⺞ߥ૞ᬺ႐㕙ࠍ↪ᗧߔࠆᔅⷐ߇޽ࠈ߁‫ߩߘޕ‬႐㕙ߣߪ㧘චಽߦ⋡ⷡ߼ߚ⁁ᘒ
㧔wakefulness㧕ࠍ⢛᥊ߦ⌧⌁ߦ㘃ߒߚ⁁ᘒ߳⍴ᤨ㑆ߩ⒖ⴕࠍ⸵ߔ߽ߩߢ޽ࠅ㧘߆ߟ⌁᳇ࠍᗵߓߡ߽
ߘࠇߦ⠴߃ߡⷡ㉕ࠍ⛽ᜬߒ૞ᬺࠍ⛮⛯ߔࠆ‫ᦨޟ‬ༀߩദജ‫ޠ‬㧔Kamiya, 1961㧕ࠍ᳞߼ࠆ߽ߩߢ޽ࠆ‫ޕ‬
ᚻరߩࠬࠗ࠶࠴ࠍ࡝࠭ࡒࠞ࡞ߦ➅ࠅ㄰ߒ᛼ߔ VCR ㆇേߩ૞ᬺ⺖㗴ߪ㧘ㆇേ೙ᓮߩ⛮⛯ദജ߇ⵍ㛎⠪
ࡍ࡯ࠬߢⴕࠊࠇࠆߎߣ㧘ⷡ㉕߆ࠄ⌧⌁߳ߩ⥄ὼߥ⒖ⴕࠍ៊ߥ߁ෂ㒾ᕈ߇ዊߐ޿ߎߣ߆ࠄ㧘ࡑࠗࠢࡠ
ࠬ࡝࡯ࡊ߳ߩⴕേ⊛ࠕࡊࡠ࡯࠴ᴺߣߒߡߩ᦭↪ᕈ߇ᦼᓙߢ߈ࠆߣᕁࠊࠇࠆ‫ޕ‬ೋᦼߩ VCR ㆇേ⎇ⓥ
㧔Anliker㧘1963㧕ߪ㧘ⵍ㛎⠪⥄り߇㤩໒ߢ⷗Ⓧߞߚਥⷰ⊛ߥ㧟⑽㑆㓒ߦวࠊߖߡ㔚㎛ࠠ࡯ࠍ➅ࠅ㄰
ߒ᛼ߔᚻ⛯߈ࠍ↪޿ߡ౉⌁ㆊ⒟ߦ߅ߌࠆᤨ㑆⍮ⷡߣǩᵄߩᶖ㐳ߣߩ㑐ଥࠍ⺞ߴߡ޿ࠆ‫ࠆࠃߦࠇߘޕ‬
ߣ VCR 㑆㓒ߪǩᵄߩᝄ᏷ᷫዋߣᲧ଀ߒߡᑧ㐳ߔࠆߣߐࠇߚ㧔㨪 ⑽㧕‫ߩߘޕ‬ᓟߩᢿ⌁⎇ⓥߦ߅޿
ߡ߽ VCR 㑆㓒ߩᑧ㐳ߦߪǩᵄᛥ೙޽ࠆ޿ߪᲑ㓏㧝ߩ⣖ᵄࡄ࠲ࡦ㧘ߐࠄߦߪ✭ᓢ⌒⃿ㆇേߥߤߩ↢ℂ
⊛ᄌൻߩ㓐઻ᕈ߇⏕⹺ߐࠇߡ߅ࠅ㧘VCR ㆇേߪ౉⌁௑ะ߿ࡑࠗࠢࡠࠬ࡝࡯ࡊ޽ࠆ޿ߪ⌁᳇ߥߤߩⴕ
േ⊛ᬌᩏᴺߣߒߡߩน⢻ᕈ߇߆ߥࠅ㜞޿ߎߣ߇␜ໂߐࠇߡ޿ࠆ㧔Carskadon & Kleitman, 1979㧧
Casagrande, Braibanti, Gennaro, Violanti, & Bertini,1991㧧Casagrande, Testa, Violani, Mastrantonio, &
Bertini, 1994㧧Casagrande, Testa, Violani, Gennaro, & Bertini, 1996 ߥߤ㧕‫ޕ‬
ߣߎࠈߢ㧘VCR ㆇേߩ㑆㓒ᑧ㐳ࠍᢥሼㅢࠅ㑆㓒ᑧ㐳ߣฃߌขߞߡࠃ޿ߩ߆ߤ߁߆ߪ㧘ᣇᴺ⺰⊛ߥ
ᬌ⸛߇ᔅⷐߢ޽ࠈ߁‫ࠄߥߗߥޕ‬਄ㅀߩ⎇ⓥߢߪኾࠄ᛼ߒࡏ࠲ࡦᑼࠬࠗ࠶࠴߿㔚㎛ࠠ࡯ߥߤ߇૶↪ߐ
ࠇߡ޿ࠆ߇㧘ߘ߁ߒߚᯏ᪾⊛ࠬࠗ࠶࠴ߪߘߩࡔࠞ࠾ࠞ࡞ߥ೙⚂߆ࠄోήᔕ╵ᒻᑼߩᖱႎ㧔৻ቯߩ㑣
୯ࠍ⿧߃ߚ⩄㊀࿶ߩߺߦࠗࡦࡄ࡞ࠬᒻᑼߩᔕ╵㧕ࠍឭଏߔࠆߦߣߤ߹ߞߡ޿ࠆ‫߼ߚߩߘޕ‬㧘㑣ㄭற
ߩᓸᒙߢ޽ࠆ߇᦭ᗧ๧ߥ⩄㊀࿶ߩ޿ߊߟ߆ߪᬌ಴ߐࠇߕ㧘⚿ᨐߣߒߡ⷗߆ߌ਄ߩ㑆㓒ᑧ㐳߇⸥㍳ߐ
ࠇߚน⢻ᕈ߇ዋߥߊߥ޿‫ߦࠄߐޕ‬㧘㑆㓒ᑧ㐳ߥߤߩ⺋෻ᔕߪ⹺⍮㧔ᤨ㑆⍮ⷡ㧘ㆇേ⛽ᜬ㧕ߩᄌኈߦ
ࠃࠆ߽ߩߢߪߥߊ㧘╭✕ᒛ᳓Ḱߩૐਅߣ޿߁㧞ᰴ⊛ലᨐߢ޽ࠆ߆߽ߒࠇߥ޿‫ߩᤨ⌁⌧ޕ‬ㆇേᔕ╵ࠍ
⺞ߴࠆ႐วߪ╭✕ᒛߩหᤨ⸘᷹߇ᔅⷐߢ޽ࠆߣߐࠇߡ޿ࠆ߇㧔Kamiya, 1961㧕㧘ߎࠇࠍታ⃻ߒߚ⎇
ⓥ଀ߪ߶ߣࠎߤߥ޿ࠃ߁ߢ޽ࠆ‫⪺ޕ‬⠪ࠄ㧔ᐢ㊀㨯Dorokhov㨯଻㊁㧕ߪ㧘VCR ㆇേߩࠬࠗ࠶࠴ߣ
ߒߡᗵ࿶࠮ࡦࠨࠪࠬ࠹ࡓࠍ↪޿ߡ࠮ࡦࠨߦ߆߆ࠆ⩄㊀࿶ߩㅪ⛯⊛ߥᄌേࡄ࠲ࡦ߆ࠄ╭✕ᒛࠍߣࠄ߃
ࠆⴕേ⊛⸘᷹ᴺࠍᬌ⸛ߒ㧘ߘߩน⢻ᕈࠍ⏕⹺ߒߡ޿ࠆ‫ޕ‬
ᧄ⎇ⓥߪⷡ㉕ߣ⌧⌁ߩ⒖ⴕ㑐ଥࠍℂ⸃ߔࠆࡕ࠺࡞ߣߒߡࡑࠗࠢࡠࠬ࡝࡯ࡊߦ⌕⋡ߒ㧘ߘߩⴕേ⊛
ߥ಴⃻᭽ᑼࠍ tap ㆇേߩᄌኈߩὐ߆ࠄ⸃᣿ߔࠆߎߣࠍ⋡⊛ߣߒߡⴕࠊࠇߚ‫ޕ‬VCR ㆇേߪ୘‫ ߩޘ‬VCR
߇੕޿ߦㅪ⛊ߥߒߦ⁛┙ߒߡㆀⴕߐࠇࠆߣߪ⠨߃㔍ߊ㧘߻ߒࠈ㧘వⴕ VCR ߩㆀⴕ⁁ᘒ߇ᖡ޿ߣߎࠇ
ࠍୃᱜߔࠆᒻߢᓟ⛯ VCR ߇ታⴕߐࠇࠆߣ޿߁ࠃ߁ߦవⴕ VCR ߩㆀⴕ⚿ᨐࠍฃߌߡᓟ⛯ VCR ߩ޽ࠅᣇ
߇ቯ߹ࠆߣ⠨߃ࠆߩ߇⚻㛎⊛ߥ੐ታߦㄭߊ㧘ߘ߁ߒߚㆇേᖱႎߩฃߌᷰߒࠍมࠆ਄૏ᯏ⢻ࠍᗐቯߔ
ࠆ߶߁߇ℂߦㆡߞߡ޿ࠆߣ⠨߃ࠄࠇࠆ‫⎇ᧄޕ‬ⓥߪᏀฝߩᚻࠍ੤ઍߐߖߟߟ৻ቯ࿁ᢙߩ VCR ࠍㆀⴕߔ
ࠆⵍ㛎⠪ࡍ࡯ࠬߩ੤ઍᑼ VCR ㆇേࠍ↪޿ࠆߎߣߢ㧘୘‫ ߩޘ‬VCR ߩㆀⴕᯏ⢻ߣㆇേᖱႎߩฃߌᷰߒߦ
広重佳治：行動的覚醒維持法によるマイクロスリープの実験的検討
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㑐ࠊࠆ⛽ᜬᯏ⢻ߩ඙೎ࠍᚻ⛯߈ߩὐ߆ࠄ᣿⏕ߦߒߚ‫ޕ‬
ᣇᴺ
ⵍ㛎⠪ ᔃりߣ߽ஜᐽߢ⌧⌁㓚ኂߩߥ޿ᄢቇ↢ ฬ㧔ᐕ㦂 㨪 ᱦ㧕߇ෳടߒ㧘ታ㛎ߩ⋡⊛ߣ
ᚻ⛯߈ߦߟ޿ߡหᗧࠍᓧߚ‫ޕ‬
⸥㍳ 㧤࠴ࡖࡀ࡞ߩ⌧⌁ࡐ࡝ࠣ࡜ࡈ⸥㍳㧔ᣣᧄశ㔚⵾4/㧕ࠍታᣉߒߚ‫ޕ‬⣖ᵄ㧔ᤨቯᢙ ⑽㧕ߪਛᔃㇱ㧔%%㧕ߣᓟ㗡ㇱ㧔11㧕ࠃࠅ㧘᳓ᐔ⌒⃿ㆇേ㧔ᤨቯᢙ㧢⑽㧕ߪᏀฝ⌒┃ᄖ஥✼ㇱ
ࠃࠅߘࠇߙࠇၮḰ㔚ᭂᴺ㧔Ꮐ੃᭽㗡⓭⿠ࠍၮḰ㔚ᭂㇱ㧕ߢዉ಴ߒ #% Ⴧ᏷ߒߚ‫ޕ‬หᤨߦ㧘Ꮐฝߩᚻߢ
ⴕ߁ VCR ㆇേࠍ &% Ⴧ᏷ߒߚ‫ޕ‬ട࿶ߦࠃࠅᛶ᛫୯߇ᄌൻߔࠆࡐ࡝ࡑ࡯ࠍዉ㔚૕ߢ᜽ࠎߛዊဳ࡮シ㊂࡮
ᨵ᭴ㅧߩᗵ࿶࠮ࡦࠨ㧔force sensing register㧕ࠍ VCR ㆇേߩࠬࠗ࠶࠴ߣߒߡណ↪ߒ㧘ᗵ࿶࠮ࡦࠨߩᛶ
᛫୯ࠍࠕ࠽ࡠࠣ㔚࿶ߦᄌ឵ߒߡ಴ജߒߚ㧔&-* ␠⵾㧕‫ߩࠨࡦ࠮ޕ‬ᔕ╵․ᕈߪ⩄㊀࿶ -IH ߹ߢߩ▸࿐
ߢ߶߷⋥✢⊛ߢ޽ߞߚ‫ޕ‬
ᚻ⛯߈ ⵍ㛎⠪ࡍ࡯ࠬߩ੤ઍᑼ VCR ㆇേࠍ⺖ߔⴕേ⊛ⷡ㉕⛽ᜬ㧔behavioral maintenance of
wakefulness㧕ߩᚻ⛯߈ࠍ↪޿ߚ‫ⵍޕ‬㛎⠪ߪᏀฝߩᚻߩ╙㧝ᜰߦਔ㕙࠹࡯ࡊߢ⾍ࠅߟߌߚᗵ࿶࠮ࡦࠨ
ࠬࠗ࠶࠴ࠍ㧘ห஥ᚻߩ╙㧞ᜰᄖ஥ߦ -I ೨ᓟߩ⩄㊀࿶ߢシߊ෻ᓳߒߡ᛼ߒߟߌࠆㆇേ㧔tap ㆇേ㧕ࠍ
ㆀⴕߒߚ‫✵ޕ‬⠌ᣣߦ㧘ⵍ㛎⠪ߪᗵ࿶࠮ࡦࠨࠬࠗ࠶࠴ߦട߃ࠆ⩄㊀࿶ߩ೙ᓮ㧘㤩໒ߢ㧝⑽㑆㓒ࠍ⷗Ⓧ
߽ࠅߥ߇ࠄࠬࠗ࠶࠴ࠍ᛼ߔㆇേ㧔ᤨ㑆⍮ⷡ㧕ߩⷐ㗔ࠍ૕ᓧߒߚ‫ޕ‬ታ㛎ᣣߪ⸠✵ᣣࠃࠅᢙᣣᓟߩඦᓟ
ߩᤨ㑆Ꮺ㧔 ᤨ㨪 ᤨ㧕ߦ⸳ቯߒߚ‫ⵍޕ‬㛎⠪ߪ㔚ᭂߣᗵ࿶࠮ࡦࠨࠬࠗ࠶࠴ߩⵝ⌕ᓟ㧘㔚᳇⊛ߦࠪ࡯
࡞࠼ߐࠇߚඨ㒐㖸࡮ᥧቶౝߩ቟ᭉ᫹ሶߦᐳߒߚ‫ ޕ‬ಽ㑆ߩ੤ઍᑼ VCR ㆇേߪᰴߩⷐ㗔ߢታᣉߐࠇߚ‫ޕ‬
቟㕒㐽⌒ߩ⸥㍳ࠍᢙಽ㑆ⴕߞߚᓟ㧘㐿ᆎ㖸㧔FD$㧘⢛᥊㛍㖸 FD#㧕ߣߣ߽ߦ㧘ⵍ㛎⠪ߪ㧝⑽㑆㓒
ࠍ㤩໒ߢ⷗Ⓧ߽ࠅߥ߇ࠄ߹ߕฝᚻߩࠬࠗ࠶࠴ࠍ ࿁ߊࠅ㄰ߒ᛼ߒ㧘⛯޿ߡᏀᚻߩࠬࠗ࠶࠴ࠍห᭽ߦ
࿁᛼ߒ㧘ౣ߮ฝᚻߦᚯࠆߣ޿߁ⷐ㗔ߢᏀฝߩᚻࠍಾࠅᦧ߃ߥ߇ࠄ VCR ㆇേࠍߢ߈ࠆ㒢ࠅ㐳ߊᜬ⛯
ߒߚ‫ޕ‬ਛㅜߢ⍴ᤨ㑆⌁ߞߡߒ߹߁ߥߤߩℂ↱ߢ ⑽㑆 VCR ㆇേ߇஗ᱛߔࠆߣ㧘ㆇേߩౣ㐿ࠍว࿑ߔ
ࠆೝỗ㖸߇⥄േ⊛ߦឭ␜ߐࠇߚ‫ޕ‬
࠺࡯࠲ಽᨆ ⌧⌁Ბ㓏ߪ㧡ߟߩ⣖ᵄ࡮⌒⃿ㆇേᲑ㓏ߦಽ㘃ߒߚ‫ߕ߹ޕ‬࿖㓙ၮḰ㧔Rechtschaffen
& Kales, 1968㧕ߦḰߓߡ ⑽඙↹Ფߦਛᔃㇱ⣖ᵄ㧔%㧕ࠍⷡ㉕㧘Ბ㓏㧝߅ࠃ߮Ბ㓏㧞ߦ್ቯߒ㧘ⷡ
㉕ࠍ✭ᓢ⌒⃿ㆇേ㧔5'/U㧕ࠍ઻߁Ბ㓏 95'/ ߣ 5'/U ࠍ઻ࠊߥ޿Ბ㓏 905'/ ߣߦੑಽߒߚ‫ߦࠄߐޕ‬㧘
Ბ㓏㧝ߩ߁ߜ㗡㗂ㇱ㍈ᵄࠍ઻߁඙↹ࠍᲑ㓏 5 ߣߒߡᲑ㓏㧝߆ࠄ඙೎ߒߚ‫⸥ޕ‬㍳࠺࡯࠲ߪᮡᧄൻ๟ᵄ
ᢙ *\ ߢ #& ᄌ឵ߒ㧘↹௝ࡈࠔࠗ࡞ਗ߮ߦ࠹ࠠࠬ࠻ࡈࠔࠗ࡞ߣߒߡ଻ሽߒߚ㧔BIOPAC Systems ␠
⵾ MP100WS㧕‫ޕ‬ਛᔃㇱߣᓟ㗡ㇱ⣖ᵄߩǩᵄ಴⃻㊂₸㧔%time alpha㧕ࠍ ⑽඙↹Ფߦ⥄േ⸘᷹ߒߚ
㧔ᐔ㊁㨯ᐢ㊀㧕‫⸘ᧄޕ‬᷹ᴺߪේ⣖ᵄߣ૏⋧ߩᱡߺ߇ߥ޿ỹㆊᵄࠍ಴ജߔࠆ᦭㒢ࠗࡦࡄ࡞ࠬᔕ╵
㧔finite impulse response㧦FIR㧕ࡈࠖ࡞࠲ߩᏪၞ᏷ࠍ *\ ߆ࠄ *\ ߦ⸳ቯߒ㧘㑣୯㧡Ǵ8 ࠍ⿥߃ࠆỹ
ㆊᵄߩ㗂ὐ㑆ᤨ㑆ߣ⍍ᤨ๟ᵄᢙࠍ⺒ߺขࠅ㧘⍍ᤨ๟ᵄᢙ߇ǩᏪၞౝߦ⪭ߜࠆỹㆊᵄߩ㗂ὐ㑆ᤨ㑆ߩ
ว⸘୯ࠍ ⑽ᒰߚࠅߩ⊖ಽ₸ߦ឵▚ߒߚ‫ޕ‬5'/U ߪ⌒⃿ㆇേߩ⥄േ⸘᷹ᴺࠍ↪޿ߡᬌ಴ߒ㧘ᵄᒻߩ
․ᓽ᛽಴ࡄ࡜ࡔ࡯࠲ࠍ᷹ቯߒߚ㧔ᐢ㊀㧕‫ޕ‬
VCR ㆇേߩ࠺࡯࠲ಣℂߪ㧘⌒⃿ㆇേߩ⥄േ⸘᷹ᴺ㧔4'/U ᬌ಴ࠕ࡞ࠧ࡝࠭ࡓ㧕ࠍ৻ㇱୃᱜߒߚ߽ߩ
ࠍ↪޿ߚ‫ޕ‬Fig.㧝ߦ VCR ㆇേߩ⸘᷹଀ࠍ␜ߒߚ‫ޕ‬#& ᄌ឵ߐࠇߚ VCR ⩄㊀࿶ߩᤨ♽೉ߦࠬ࠹࠶ࡊ OU
ߢ㗅ᰴ⒖േߔࠆ⓹㧔ᤨ㑆㐳 OU㧕ࠍㅢߒߡ⋥✢࿁Ꮻಽᨆࠍⴕ޿㧘┙ߜ਄߇ࠅᤨὐ㧔ㅦᐲᜰᢙ
8'.1%+6;^ǰ^҈ ᐲǍV ߣߥࠆᤨὐ㧕߆ࠄ஗⇐ᤨὐ㧔^ǰ^҇ ᐲǍV ߣߥࠆᤨὐ㧕߹ߢߩ⚻ㆊᤨ
36
地 域 学 論 集 第 １ 巻 第 １ 号（2004）
㑆߇ OU એਅߢ⩄㊀࿶Ꮕ㧔ᦨᄢ⩄㊀࿶㧕߇ 㨓એ਄ߣߥࠆ VCR ࠍᬌ಴ߒ㧘ᦨᄢ⩄㊀࿶㧔FSR㧕㧘
಴⃻ᤨೞ㧔TIME㧕߅ࠃ߮㓞ࠅวߞߚ VCR ߩᤨ㑆㑆㓒ࠍ⥄േ⸘᷹ߒߚ‫ޕ‬࿑ߦ␜ߔࠃ߁ߦ㧘VCR ㆇേߩ
಴⃻᭽ᘒߪ㧘
#㜞⩄㊀࿶ߩ VCR ߇቟ቯߒߚ㑆㓒ߢ⛮⛯ߔࠆ႐ว㧘޽ࠆ޿ߪ
$⩄㊀࿶߇ᕆỗߥૐᷫ
ࠍ␜ߔ႐ว㧘ߐࠄߦߪ㧔%㧕⩄㊀࿶ߣ㑆㓒߇ߣ߽ߦਇ቟ቯߢᄢ߈ߊേំߔࠆ႐วߥߤ㧘㕖Ᏹߦᄙ᭽ߢ
޽ࠆ‫⸘ᧄޕ‬᷹ᴺߪߘ߁ߒߚ੍᷹ߒ㔍޿ᄌേࠍߺߖࠆ୘‫ ߩޘ‬VCR ࠍ⊛⏕ߦᬌ಴ߒ㧘ߘߩ಴⃻ᤨὐߣ⩄
㊀࿶ߦߟ޿ߡ߆ߥࠅ㜞޿♖ᐲߩ⸘᷹୯ࠍਈ߃ߚ‫ޕ‬
Fig.㧝tap ㆇേߩ⥄േ⸘᷹଀
#
$
%ߦ␜ߔࠃ߁ߦ VCR ㆇേߩ⃻ࠇᣇߪᄙ᭽ߢ޽ࠆ߇㧘⩄㊀࿶㧔(54㧦I એ਄ࠍᬌ಴㧕ߣ
಴⃻ᤨὐ㧔6+/'㧦 ⑽ߩ♖ᐲߢ⴫␜㧕ࠍ⊛⏕ߦ⸘᷹ߒߚ‫ޕ‬8'.1%+6;
FGITGGǍVOU ߩᬌ಴⓹
ౝߢ▚಴ߒߚ⒖േᑼ࿁Ꮻ⋥✢ߩ௑߈㧔⛘ኻ୯㧕ߪ⩄㊀࿶ߩᕆỗߥ਄᣹࡮ਅ㒠ߦ㍈ᢅߦᔕ╵ߒߚ‫ޕ‬
広重佳治：行動的覚醒維持法によるマイクロスリープの実験的検討
37
⚿ᨐ
౉⌁ẜᤨ tap ㆇേߩ ⑽㑆஗ᱛߪ ฬߩⵍ㛎⠪ߢⷰኤߐࠇߚ‫ޕ‬ㆇേ஗ᱛߦ઻߁㖸ೝỗߩឭ␜
࿁ᢙߪᐔဋ 4.6 ࿁㧔▸࿐ 1㨪14㧕ߢ޽ߞߚ‫ޕ‬㖸ೝỗ߇ឭ␜ߐࠇࠆ߹ߢߩ⚻ㆊᤨ㑆ࠍឭ␜࿁ᢙ೎ߦ⺞
ߴߚߣߎࠈ㧘ೋ࿁ߩ㖸ೝỗߩ⚻ㆊᤨ㑆߇ᦨ߽㐳ߊ㧔r ⑽㧕㧘㧞࿁⋡એ㒠ߩ㖸ೝỗߦ߅
޿ߡߪᕆㅦߦ⚻ㆊᤨ㑆߇⍴❗ߒ㧘ⵍ㛎⠪ᢙ߽ඨᷫߒߚ㧔⚻ㆊᤨ㑆㧦㨪 ⑽㧘ⵍ㛎⠪ᢙ㧦㧝㨪㧣
ฬ㧕‫ߢߎߘޕ‬ೋ࿁ߩ㖸ೝỗឭ␜߹ߢߩ⚻ㆊᤨ㑆ࠍ tap ㆇേ஗ᱛẜᤨߣߒߡ⸘᷹ߒ㧘Ბ㓏㧝ẜᤨ߅ࠃ
߮Ბ㓏㧝5 ẜᤨ㧔ߘࠇߙࠇᶖἮ߆ࠄߩ⚻ㆊᤨ㑆㧕ߣᲧセߒߚ‫ޕ‬㧥ฬߩ࠺࡯࠲ߦ߅޿ߡ㧘Ბ㓏㧝߆ࠄ
Ბ㓏 1S ࠍ⚻ߡ tap ㆇേߩ஗ᱛߦ⥋ࠆߣ޿߁౉⌁ẜᤨߩ㗅ᐨᕈ߇⹺߼ࠄࠇߚߩߢ㧘ᧄⓂߪߘߩ߁ߜߩ
㧟ฬ㧔+J㧘6P㧘;O㧕ߩ࠺࡯࠲ࠍㆬ߮಴ߒಽᨆߒߚ‫ߩߘޕ‬㧟ฬߩ౉⌁ẜᤨ㧔⑽㧕ߩᐔဋߪᲑ㓏㧝㧔
r㧕㧨Ბ㓏 1S㧔1266.7±52.5㧕㧨tap ㆇേ஗ᱛ㧔r㧕ߩ㗅ߦᑧ㐳ߒ㧘⛔⸘⊛ߦ᦭ᗧߢ
޽ߞߚ㧔ǿ㧞=6.00, df=2, p0.01㧕㧦ߘࠇߙࠇ +J㧦 ⑽㧘6P㧦 ⑽㧘;O㧦
⑽‫ޕ‬
⸥㍳଀ (KI㧞ߦ㧘ೋ࿁ߩ㖸ೝỗឭ␜ߦ⥋ࠆ߹ߢߩ⣖ᵄ㧔'')㧕㧘⌒⃿ㆇേ㧔'1)㧕߅ࠃ߮੤ઍᑼ
VCR ㆇേ㧔6#24KIJV ߣ 6CR.GHV㧕ߩࡐ࡝ࠣ࡜ࡈ⸥㍳ߩ৻଀ࠍ࿶❗ߒߡ࿑␜ߒߚ‫ᧄޕ‬࿑ࠃࠅ㧘Ꮐฝ
ߩᚻߦࠃࠆ VCR ㆇേ߇߹ࠆߢᰏߩᱤ߇ᛮߌࠆࠃ߁ߦᄌൻߒߡࠁߊ᭽ሶࠍ᭎ⷰߔࠆߎߣ߇ߢ߈ࠆ‫⸥ޕ‬
㍳㐿ᆎᒰೋ㧡㨪㧢ಽ㑆ߩ VCR ㆇേߪᚻ⛯߈ߦ߶߷ᔘታߦታⴕߐࠇߡ߅ࠅ㧘ㆇേࡄ࡜ࡔ࡯࠲ߩ⩄㊀࿶
ߪ㜞ߊ߶߷቟ቯߒߡ⛽ᜬߐࠇ㧘Ꮐฝߩᚻߩಾࠅᦧ߃߽ⷙೣ⊛ߦⴕࠊࠇߚ‫ᧄޕ‬࿑ߪ࿶❗ߐࠇߡ޿ࠆߚ
߼୘‫ ߩޘ‬VCR ߩ್⺒ߪߢ߈ߥ޿߇㧘Ꮐฝߩ VCR ㆇേ࠴ࡖࡀ࡞ߦߪ㤥޿᧤⁁ߩ࿕߹ࠅߣߒߡ৻ቯᢙߩ
VCR ߩਗ߮߇੤੕ߦ⸥㍳ߐࠇߚ‫ߒ߆ߒޕ‬㧘⣖ᵄ਄ߦ૕േ߇⸥㍳ߐࠇߚ ಽ೨ᓟ߆ࠄ '1) ᦛ✢਄ߦߪ
ᄢ߈ߊ✭߿߆ߥ਄ਅᄌേߣߒ⸥㍳ߐࠇࠆ✭ᓢ⌒⃿ㆇേ㧔5'/U㧕ߩ಴⃻߇㗼⪺ߣߥࠅ㧘ߎࠇߣኻᔕߒ
ߡ VCR ㆇേߪ࿁ᢙ㧘⩄㊀࿶㧘㑆㓒ߥߤߩࡄ࡜ࡔ࡯࠲ߩ೙ᓮ߇࿎㔍ߣߥࠅᆎ߼ߚ㧔࿁ᢙߩᷫዋ㧘⩄㊀
࿶ߩૐਅ㧘㑆㓒ᑧ㐳㧕‫ޕ‬ᰏߩᱤߩᛮߌ⪭ߜ⃻⽎߇㗼࿷ൻߒߚ‫ޕ‬ታ㛎㐿ᆎࠃࠅ ಽ૛ࠅ߇ㆊ߉ࠆߣ㧘
ᚻߩಾࠅᦧ߃߽ਇቢోߣߥߞߡฝᚻఝ૏ߩㆇേ߳ߣᄌൻߒ㧘ߟ޿ߦㆇേߩ஗ᱛߦ⥋ߞߚ‫ޕ‬㖸ೝỗ
㧔VQPG㧕߇ឭ␜ߐࠇࠆ⋥೨ᢙಽ㑆ߪਛᔃㇱ⣖ᵄ㧔'')%㧕߇㜞ᝄ᏷ᓢᵄൻߒ㧘Ბ㓏㧝5 ߅ࠃ߮Ბ㓏
㧞ߣ್ቯߐࠇࠆ⌧⌁ߩೋᦼ⁁ᘒߦ޽ߞߚ‫ޕ‬
࿶❗⸥㍳ߩᤨὐ㧭㧘㧮㧘㧯ߦ߅ߌࠆ VCR ㆇേߣ⣖ᵄ߅ࠃ߮⌒⃿ㆇേߩ⸥㍳ࠍ (KI㧟ߦ᜛ᄢ⴫␜ߒ㧘
ߘߩ․ᓽࠍ⹦⚦ߦⷰኤߒߚ‫ᤨޕ‬ὐ㧭ߢߪ⢛᥊⣖ᵄ㧔․ߦᓟ㗡ㇱ㧕ߦǩᵴേߩᜬ⛯⊛ߥ಴⃻߇ߺࠄࠇ㧘
Ყセ⊛㜞޿⩄㊀࿶ߩ VCR ߇቟ቯߒߚ㑆㓒ߢㆀⴕߐࠇߚ‫ߩߎޕ‬႐ว㧘ㆃ޿⌒⃿ㆇേߢ޽ࠆ 5'/U ߩ಴⃻
ߣᤨ㑆⊛ߦኻᔕߒߡ㧔ᤨ㑆ゲߩ ⑽೨ᓟ㧕㧘⩄㊀࿶߇৻ᤨ⊛ߦᢙ⊖ࠣ࡜ࡓૐਅߔࠆ᭽ሶ߇ߺࠄࠇ
ߚ‫ᤨޕ‬ὐ㧮ߢߪ⢛᥊⣖ᵄߦǰᵄ᭽ᓢᵄ߇⍴ᤨ㑆੺౉ߒߡǩᵴേߩᢿ⛯ൻ߇↢ߓ㧘หᤨߦ᣿⍎ߥ 5'/U
߇ㅪ⛯⊛ߦ಴⃻ߒߚ‫ ߩ߈ߣߩߎޕ‬VCR ㆇേߪᚻߩಾࠅᦧ߃ߪ⛽ᜬߐࠇߡ޿ࠆ߽ߩߩ㧘ฝᚻ VCR ߩㇱ
ಽ⊛ᰳ⪭޽ࠆ޿ߪ㑆㓒ᑧ㐳㧘߅ࠃ߮৻ᤨ⊛ߥ⩄㊀࿶ૐਅߥߤ㧘ㆇേࡄ࡜ࡔ࡯࠲ߦ৻ㅪߩᄌൻ߇ߺࠄ
ࠇߚ‫ߚߒ߁ߎޕ‬ᄌኈߪߘߩᜬ⛯ᕈߩὐ߆ࠄࡑࠗࠢࡠࠬ࡝࡯ࡊߩⴕേ⊛⴫಴ࠍ␜ໂߔࠆ߽ߩߣ⠨߃ࠄ
ࠇߚ‫ᤨޕ‬ὐ㧯ߢߪǩᵄߩᶖᄬߣ⣖ᵄߩᓢᵄൻ㧔․ߦ㧘ਛᔃㇱߦ߅ߌࠆ㗡㗂ㇱ㍈ᵄߣ⚜㍝ᵄߩ಴⃻㧕
߅ࠃ߮ㆇേ⚻ㆊ߇৻ጀ✭߿߆ߣߥߞߚ 5'/U ߩ಴⃻ߣ޿߁౉⌁⁁ᘒߩ․ᓽ߇⃻ࠇߚ‫ ߩ߈ߣߩߎޕ‬VCR
ㆇേߪᚻߩಾࠅᦧ߃ᤨ㑆ߩᄢ᏷ߥᑧ㐳㧘ᚻߩಾࠅᦧ߃ᄬᢌ㧘ฝᚻఝ૏ߩૐ㗫ᐲ VCR ߩᢿ⛯⊛ߥ⃻ࠇ
߇㗼⪺ߣߥࠅ㧘ㆇേߩ፣უࠍශ⽎ߠߌߚ‫ޕ‬
地 域 学 論 集 第 １ 巻 第 １ 号（2004）
߇ឭ␜ߐࠇߚ
38
広重佳治：行動的覚醒維持法によるマイクロスリープの実験的検討
A)
B)
C)
(KI㧟 ⣖ᵄ㧘⌒⃿ㆇേ߅ࠃ߮੤ઍᑼ VCR ㆇേߩ⸥㍳㧔᜛ᄢ࿑㧕
࿑ #㧘$㧘% ߪߘࠇߙࠇ (KI㧞ߩᤨὐ #㧘$㧘% ߩ⸥㍳ߦኻᔕߔࠆ‫ޕ‬
39
40
地 域 学 論 集 第 １ 巻 第 １ 号（2004）
ࡑࠗࠢࡠࠬ࡝࡯ࡊߩⴕേ⊛⴫಴ ೋ࿁ߩ㖸ೝỗឭ␜߹ߢߩᦼ㑆ߦ߅ߌࠆ tCR ㆇേߩᄌኈࠍ VCR
೉㧔VCRVTCKP㧕ߩὐ߆ࠄ⺞ߴߚ‫ ߢߎߎޕ‬VCR ೉ߣߪ㧝⑽೨ᓟߩ㑆㓒ߢㆀⴕߐࠇߚࠬࠗ࠶࠴᛼ߒߩਗ
߮ࠍᜰߒ㧘ታ㛎ᚻ⛯߈ߦᓥ߃߫Ꮐฝߩᚻߩಾࠅᦧ߃ߩߚ߮ߦ ࿁ߩࠬࠗ࠶࠴᛼ߒ߇৻೉ߦਗ߱
㧔(KI㧞ߣ (KI㧟#㧕‫ޕ‬VCR ೉ߩ⼂೎ߪᚻߩಾࠅᦧ߃ߦၮߠ޿ߡⴕ߁ߎߣ߇ߢ߈ࠆ߇㧘ᤨߦߪᚻߩಾ
ࠅᦧ߃߇ߥ޿߹߹Ყセ⊛㐳޿㑆㓒ࠍ߅޿ߡห஥ߩᚻߢ VCR ㆇേ߇ౣ㐿ߐࠇࠆߣ޿߁੐ᘒ߽↢ߓߚ‫ޕ‬
ߘߎߢ㧘ㆇേౣ㐿߹ߢߩ⚻ㆊᤨ㑆߇㧢⑽એ਄ߩ߽ߩࠍᚻߩಾࠅᦧ߃ᄬᢌߦࠃࠆ VCR ೉ߣߒߡ೎ㅜ್
ቯߒߚ‫ޕ‬Fig.㧠a, b, c ߦ㧘ฦ tap ೉ߦ߅޿ߡ⸘᷹ߒߚㆇേࡄ࡜ࡔ࡯࠲ߩᤨ㑆ᄌേࠍⵍ㛎⠪೎ߦ␜ߒߚ‫ޕ‬
࿑ߩᦨ਄Ბ߆ࠄᚻߩಾࠅᦧ߃ᤨ㑆㧔alternation gap㧕㧘tap ᢙ㧔taps㧕㧘tap 㑆㓒㧔interval㧕㧘tap ⩄㊀
࿶㧔tap force㧕㧘✭ᓢ⌒⃿ㆇേߩ಴⃻ᢙ㧔SEMs㧕߅ࠃ߮ਛᔃㇱ⣖ᵄߩǩ಴⃻₸㧔EEG Alpha㧕ࠍ VCR
೉ߩ಴⃻㗅ߦࡊࡠ࠶࠻ߒߚ‫ޕ‬tap ೉ߦ߅ߌࠆ SEMs ಴⃻ᢙߣǩ಴⃻₸ߪᰴߩࠃ߁ߦ▚಴ߒߚ‫ޕ‬tap ೉
߇ⶄᢙߩ඙↹ߦࠊߚߞߡ⚻ㆊߒ߿ߔ޿ߎߣࠍ⠨ᘦߒ㧘છᗧߩ tap ೉߇෸߱ߘࠇߙࠇߩ඙↹ߢᓧࠄࠇ
ߚ SEMs ᢙߣǩ಴⃻₸ߦฦ඙↹ߢ tap ೉߇භ߼ࠆᤨ㑆₸ࠍ㊀ߺߣߒߡដߌ㧘ߘߩว⸘୯ࠍណ↪ߒߚ‫ޕ‬
࿑ߩⷞኤ߆ࠄ㧘VCR ೉ߩᄌኈߪᄢ߹߆ߦ㧟ߟߩ⁁ᘒߦಽߌࠆߎߣ߇ߢ߈ࠆߣ޿߁ශ⽎ࠍᓧߚ‫ߕ߹ޕ‬
⋡ߦߟߊߩߪታ㛎㐿ᆎᒰೋߩ⁁ᘒ㧔࿑ਛߩ UVCVG㧭㧕ߢ޽ࠅ㧘ߘߩ․ᓽߪᚻ⛯߈ߦ߶߷ᔘታߥㆇേ
ㆀⴕߢ޽ߞߚ‫ߡ޿⛯ޕ‬㧘㖸ೝỗ㧔VQPG㧕ߩឭ␜⋥೨ߩ⁁ᘒ߇ᵈᗧࠍᒁ߈㧘ߘࠇߪᚻߩಾࠅᦧ߃ਇ⢻
ࠍ․ᓽߣߔࠆㆇേߩ፣უ⁁ᘒ㧔UVCVG㧯㧕ߢ޽ߞߚ‫ᦨޕ‬ᓟߦ㧘ߎࠇࠄਔ⁁ᘒߩ․ᓽࠍㇱಽ⊛ߦ␜ߒ
ߡ޿ࠆߣᕁࠊࠇࠆ╙㧟ߩ⁁ᘒ㧔UVCVG㧮㧕ࠍߘߩਛ㑆ߦ⷗޿ߛߒߚ‫⁁ߩࠄࠇߎޕ‬ᘒࠍ඙೎ߔࠆၮḰ
ࠍᬌ⸛ߒߚߣߎࠈ㧘
tap ߩ৻ㇱᰳ៊ࠍೋ߼ߡ઻߁ tap ೉㧔VCRU㧕ߩ಴⃻ࠍ⁁ᘒ㧮ߩ㐿ᆎߣߒ㧘
ᚻߩಾࠅᦧ߃ᤨ㑆߇㧢⑽એ਄޽ࠆ޿ߪಾࠅᦧ߃ᄬᢌߩ VCR ೉߇㧟࿁ㅪ⛯಴⃻ߔࠆ႐วࠍ⁁ᘒ㧯
ߩ㐿ᆎߣߔࠆߎߣߢ㧘⁁ᘒߩ඙೎߇᭎ߨน⢻ߢ޽ࠆߎߣ߇ಽ߆ߞߚ‫ޕ‬
6CDNG㧝VCR ㆇേߩ㧟⁁ᘒ 㩷㩷㩷㫋㪸㫇೉
㫋㪸㫇ㆇേ䋯೉
↢ℂᜰᮡ
೉䈱ㅢ䈚⇟ภ
᷹ⷰᢙ
㩿㫅㪀
࿁ᢙ
㩿㫅㪀
⩄㊀࿶
㩿㪾㪀
㑆㓒 ಾ䉍ᦧ䈋
㩿㫊㪼㪺㪀
㩿㫊㪼㪺㪀
㱍ᵴേ 㪪㪜㪤㫊
㩿㩼㪀
㩿㫅㪀
⁁ᘒ㩷㪘
㩿㩷㪈㪄㪋㪎䋩䇭㩷
⁁ᘒ㩷㪙
㩷㩷㩷㩷㩿㪋㪏㪄㪎㪊䋩㩷㩷
㪋㪎
㪈㪇
㪈㪍
㪈㪇㪅㪇
㪈㪇㪅㪇
㪎㪅㪊
㪈㪉㪋㪎㪅㪍
㪈㪇㪋㪍㪅㪉
㪎㪌㪋㪅㪇
㪈㪅㪎㪇
㪈㪅㪎㪊
㪈㪅㪎㪏
㪈㪅㪐㪇
㪈㪅㪐㪍
㪋㪅㪋㪐
㪌㪍㪅㪉㪊 㪉㪅㪊㪏
㪌㪉㪅㪉㪌 㪊㪅㪍㪇
㪋㪊㪅㪉㪉 㪋㪅㪇㪍
⁁ᘒ㩷㪚
㩿㪎㪋㪄㪏㪇䋩䇭㩷
㩷㪎
㪉㪅㪐
㪍㪎㪊㪅㪋㪋
㪈㪅㪉㪎
㪉㪉㪅㪍㪋
㪉㪍㪅㪉㪊
㪉㪅㪏㪍
⁁ᘒ㩷㪘
㩿㩷㪈㪄㪊㪊䋩㩷㩷㩷
⁁ᘒ㩷㪙
㩷㩷㩷㩿㪊㪋㪄㪈㪇㪉䋩㩷㩷
㪊㪊
㪊㪎
㪊㪉
㪈㪇㪅㪇 㪋㪐㪐㪅㪊㪍
㪈㪇㪅㪇 㪋㪏㪊㪅㪊㪊
㪏㪅㪋 㪊㪍㪉㪅㪎㪊
㪇㪅㪎㪐
㪇㪅㪎㪉
㪇㪅㪎㪊
㪇㪅㪐㪎
㪈㪅㪇㪈
㪉㪅㪊㪐
㪌㪋㪅㪐㪉
㪋㪍㪅㪍㪌
㪊㪐㪅㪋㪉
㪊㪅㪊㪈
㪉㪅㪎㪐
㪉㪅㪊㪎
⁁ᘒ㩷㪚
㩿㪈㪇㪊㪄㪈㪉㪋䋩㩷
㪉㪉
㪌㪅㪌 㪉㪏㪏㪅㪏㪇
㪇㪅㪌㪊
㪈㪊㪅㪍㪉
㪊㪊㪅㪉㪐
㪈㪅㪌㪍
⁁ᘒ㩷㪘
㩿㩷㪈㪄㪈㪐䋩㩷㩷㩷
⁁ᘒ㩷㪙
㩷㩷㩷㩷㩿㪉㪇㪄㪍㪇䋩㩷㩷
⁁ᘒ㩷㪚
㩿㪍㪈㪄㪎㪋䋩㩷
㪈㪐
㪈㪍
㪉㪌
㪈㪋
㪈㪅㪌㪉
㪈㪅㪌㪍
㪈㪅㪍㪊
㪈㪅㪌㪏
㪈㪅㪏㪐
㪉㪅㪉㪋
㪋㪅㪋㪋
㪈㪍㪅㪍㪉
㪍㪉㪅㪏㪎
㪋㪏㪋㪐
㪋㪇㪅㪌㪊
㪉㪊㪅㪎㪍
㪈㪅㪍㪉
㪈㪅㪋㪍
㪋㪅㪋㪋
㪈㪅㪍㪌
ⵍ㛎⠪㪰㫄
䌻
ⵍ㛎⠪㪠㪿
䌻
ⵍ㛎⠪㪫㫅
䌻
㪈㪇㪅㪇
㪈㪇㪅㪇
㪍㪅㪍
㪌㪅㪏
㪌㪇㪍㪅㪉㪈
㪉㪈㪐㪅㪏㪏
㪈㪋㪋㪅㪍㪎
㪈㪈㪐㪅㪎㪊
広重佳治：行動的覚醒維持法によるマイクロスリープの実験的検討
䌴䌯䌮䌥
㪪㫌㪹㫁㪼㪺㫋㪑㩷㪰㫄
㪘㫃㫋㪼㫉㫅㪸㫋㫀㫆㫅㩷㪞㪸㫇㩷㩿㫊㪀
㩷㪪㫋㪸㫋㪼㩷㪘
㪫㪸㫇㫊㩷㩿㫅㪀
41
䇭㩷㩷㪙
䇭㪚
㪈㪉
㪩㫀㪾㪿㫋㩷㪟㪸㫅㪻
㪍
㪇
㪄㪍
㪣㪼㪽㫋㩷㪟㪸㫅㪻
㪄㪈㪉
㪈㪇
㪌
㪠㫅㫋㪼㫉㫍㪸㫃㩷㩿㫊㪀
㪇
㪉
㪈
㪫㪸㫇㩷㪽㫆㫉㪺㪼㩷㩿㪾㪀
㪇
㪈㪉㪇㪇
㪐㪇㪇
㪍㪇㪇
㪊㪇㪇
㪪㪜㪤㫊㩷㩿㫅㪀
㪇
㪍
㪋
㪉
㪜㪜㪞㩷㪘㫃㫇㪿㪸㩷㩿㩼㪀
㪇
㪎㪌
㪌㪇
㪉㪌
㪇
㪇
㪈㪇
㪉㪇
㪊㪇
㪋㪇
㪌㪇
㪍㪇
㪎㪇
㪏㪇
㪫㪸㫇㩷㪫㫉㪸㫀㫅㫊㩷㫀㫅㩷㫆㫉㪻㪼㫉㩷㫆㪽㩷㪘㫇㫇㪼㪸㫉㪸㫅㪺㪼
㩷㪇
㩷㩷㩷㩷㩷㩷㩷㩷㪌
㩷㪈㪇
㩷㩷㩷㩷㩷㩷㩷㪈㪌
㪉㪇
㩷㩷㩷㩷㩷㪉㪌㩷㫄㫀㫅
(KI㧠C VCR ㆇേ஗ᱛẜᤨਛߩ VCR ೉ߩᄌኈߣࡑࠗࠢࡠࠬ࡝࡯ࡊߩⴕേ⊛⴫಴㧔ⵍ㛎⠪ ;O㧕
VCR ೉ߩ಴⃻ᤨೞߦᴪߞߡ↢ℂ࡮ⴕേ⊛ᄌᢙࠍࡊࡠ࠶࠻ߒߚ‫ᦨޕ‬਄Ბ߆ࠄ㧘#NVGTPCVKQP)CR㧦
Ꮐฝߩᚻߩಾࠅᦧ߃ᤨ㑆㧔⑽㧕6CRU㧦VCR ᢙ㧘+PVGTXCN㧦VCR 㑆㓒㧔⑽㧕㧘6CRHQTEG㧦VCR ⩄㊀
࿶㧔I㧕㧘5'/U㧦✭ᓢ⌒⃿ㆇേߩ಴⃻ᢙ
P㧘'')#NRJC㧦ਛᔃㇱ⣖ᵄǩᵴേߩ಴⃻₸
‫ޕ‬
42
地 域 学 論 集 第 １ 巻 第 １ 号（2004）
㪪㫌㪹㫁㪼㪺㫋㪑㩷㪠㪿
䌴䌯䌮䌥
㪫㪸㫇㫊㩷㩿㫅㪀
㪘㫃㫋㪼㫉㫅㪸㫋㫀㫆㫅㩷㪞㪸㫇㩷㩿㫊㪀
䇭㩷㪪㫋㪸㫋㪼㩷㪘
䇭㩷㩷㪙
䇭㩷㩷㪚
㪈㪉
㪩㫀㪾㪿㫋㩷㪟㪸㫅㪻
㪍
㪇
㪣㪼㪽㫋㩷㪟㪸㫅㪻
㪄㪍
㪄㪈㪉
㪈㪌
㪈㪇
㪌
㪠㫅㫋㪼㫉㫍㪸㫃㩷㩿㫊㪀
㪇
㪈
㪇㪅㪌
㪫㪸㫇㩷㪝㫆㫉㪺㪼㩷㩿㪾㪀
㪇
㪈㪉㪇㪇
㪐㪇㪇
㪍㪇㪇
㪊㪇㪇
㪪㪜㪤㫊㩷㩿㫅㪀
㪇
㪍
㪋
㪉
㪜㪜㪞㩷㪘㫃㫇㪿㪸㩷㩿㩼㪀
㪇
㪎㪌
㪌㪇
㪉㪌
㪇
㪇
㪈㪇
㪉㪇
㪊㪇
㪋㪇
㪌㪇
㪍㪇
㪎㪇
㪏㪇
㪐㪇
㪈㪇㪇
㪈㪈㪇
㪈㪉㪇
㪫㪸㫇㩷㪫㫉㪸㫀㫅㫊㩷㫀㫅㩷㫆㫉㪻㪼㫉㩷㫆㪽㩷㪘㫇㫇㪼㪸㫉㪸㫅㪺㪼
㩷㪇
㪌
㪈㪇
㩷㩷㩷㩷㩷㩷㩷㩷 㪈㪌
㩷㩷㪉㪇㩷㫄㫀㫅
㩷 (KI㧠D tap ㆇേ஗ᱛẜᤨਛߩ tap ೉ߩᄌኈߣࡑࠗࠢࡠࠬ࡝࡯ࡊߩⴕേ⊛⴫಴㧔ⵍ㛎⠪ +J㧕
࿑ߩ⺑᣿ߪ೨࿑ߣห᭽‫ޕ‬
広重佳治：行動的覚醒維持法によるマイクロスリープの実験的検討
43
㪪㫌㪹㫁㪼㪺㫋㪑㩷㪫㫅
䌴䌯䌮䌥
㪫㪸㫇㫊㩷㩿㫅㪀
㪘㫃㫋㪼㫉㫅㪸㫋㫀㫆㫅㩷㪞㪸㫇㩷㩿㫊㪀
䇭㩷㪪㫋㪸㫋㪼㩷㪘
䇭㩷㩷㪙
䇭㩷㩷㪚
㪈㪉
㪩㫀㪾㪿㫋䇭㪟㪸㫅㪻
㪍
㪇
㪄㪍
㪣㪼㪽㫋䇭㪟㪸㫅㪻
㪄㪈㪉
㪈㪇
㪌
㪠㫅㫋㪼㫉㫍㪸㫃㩷㩿㫊㪀
㪇
㪉
㪈
㪇
㪫㪸㫇㩷㪝㫆㫉㪺㪼㩷㩿㪾㪀
㪈㪉㪇㪇
㪐㪇㪇
㪍㪇㪇
㪊㪇㪇
㪪㪜㪤㫊㩷㩿㫅㪀
㪇
㪍
㪋
㪉
㪜㪜㪞㩷㪘㫃㫇㪿㪸㩷㩿㩼㪀
㪇
㪎㪌
㪌㪇
㪉㪌
㪇
㪇
㪈㪇
㪉㪇
㪊㪇
㪋㪇
㪌㪇
㪍㪇
㪎㪇
㪫㪸㫇㩷㪫㫉㪸㫀㫅㫊㩷㫀㫅㩷㫆㫉㪻㪼㫉㩷㫆㪽㩷㪘㫇㫇㪼㪸㫉㪸㫅㪺㪼
㩷㪇
㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㪌
㩷㩷㩷㩷㩷㪈㪇
㩷㩷㩷㩷㪈㪌
㩷㩷㩷㩷㪉㪇㩷㫄㫀㫅
㩷
(KI㧠E tap ㆇേ஗ᱛẜᤨਛߩ tap ೉ߩᄌኈߣࡑࠗࠢࡠࠬ࡝࡯ࡊߩⴕേ⊛⴫಴㧔ⵍ㛎⠪ 6P㧕
࿑ߩ⺑᣿ߪ೨࿑ߣห᭽‫ޕ‬
44
地 域 学 論 集 第 １ 巻 第 １ 号（2004）
਄ㅀߩၮḰߦࠃߞߡ඙೎ߒߚ㧟ߟߩ⁁ᘒ㧭㧘㧮㧘㧯ߦߟ޿ߡ VCR ೉ߩ᭽⋧ࠍ 6CDNG㧝ߦᢛℂߒߚ‫ޕ‬
⴫߆ࠄࠊ߆ࠆࠃ߁ߦ㧘⁁ᘒ㧭ߪ VCR ߩ࿁ᢙ㧘⩄㊀࿶߅ࠃ߮㑆㓒ਗ߮ߦᚻߩಾࠅᦧ߃ᤨ㑆ߩὐ߆ࠄߺ
ߡᱜᏱߥㆇേ߇⛽ᜬߐࠇߚ⁁ᘒߢ޽ࠅ㧘↢ℂ⊛ߦ߽㜞޿ⷡ㉕᳓Ḱߦ޽ߞߚ㧔಴⃻₸ એ਄ߩǩᵴ
േ㧕‫⁁ޕ‬ᘒ㧮ߪ↢ℂ⊛ߦߪ౉⌁⁁ᘒߦ㘃ߒߚૐ޿ⷡ㉕᳓Ḱߦ޽ࠅ㧘ㆇേߩ⺋േ૞ߣୃᓳߩ➅ࠅ㄰ߒ
ࠍ․ᓽߣߒߚ‫ࠅ߹ߟޕ‬㧘಴⃻₸ 50%ᧂḩߩǩᵴേߣ㜞㗫ᐲߩ 5'/U ࠍ⢛᥊ߦ㧘tap ᢙߣ⩄㊀࿶ߩࠊߕ
߆ߥᷫᒙ㧔⁁ᘒ㧭ߩ ⒟ᐲ㧕㧘ᚻߩಾࠅᦧ߃ᤨ㑆ߩᑧ㐳௑ะ㧔⁁ᘒ㧭ߩ㧞㨪㧟୚㧕ߥߤߩ⺋േ૞
ࠍ઻߁ VCR ೉߇⃻ࠇࠆ৻ᣇߢ㧘ઁᣇߢߪᚻ⛯߈ߦᔘታߥ VCR ೉߇࿁ᓳߔࠆߣ޿߁ᱜ⺋ㆇേߩᜟ᛫⁁
ᘒߦ޽ߞߚ㧔⺋േ૞₸ߪⵍ㛎⠪ +J ߇ 㧑6P ߇ 㧑㧘;O ߇ 61.5%㧕‫⁁ޕ‬ᘒ㧯ߢߪ⺋േ૞ߩୃ
ᓳജ߇ᄢ߈ߊᷫᒙߒ㧘㧢⑽ࠍ⿧߃ࠆᚻߩಾࠅᦧ߃ᤨ㑆߇㗼⪺ߣߥߞߚ‫↢ߩߘޕ‬ℂ⊛ߥⷡ㉕᳓Ḱߪߐ
ࠄߦૐਅߒߚ㧔ǩᵴേߩᶖᄬ㧘5'/U ߩᷫዋ㧕‫ޕ‬VCR 㑆㓒ߩᐔဋߦߪ⁁ᘒᏅߪߺࠄࠇߥ޿߇㧘ߘߩᄌ
േଥᢙߪ⁁ᘒ㧭㧔㧑㧕㧨⁁ᘒ㧮㧔㧑㧕㧨⁁ᘒ㧯㧔㧑㧕ߩ㗅ߦჇᄢߒߚ‫ޕ‬
VCR ೉ဳߩ಴⃻₸ ౉⌁ㆊ⒟ߩ⣖ᵄ࡮⌒⃿ㆇേᲑ㓏ߣߩኻᔕ㑐ଥ߇⏕⹺ߐࠇߡ޿ࠆ tap ೉ߩဳߩ
ὐ߆ࠄ㧘⁁ᘒ㧮ߩ᭽⋧ߦߟ޿ߡߐࠄߦᬌ⸛ࠍട߃ߚ‫ޕ‬tap ೉ߩၮᧄဳߪታ㛎ᚻ⛯߈ߦᔘታߥᮡḰဳ
normal type㧘ㆇേ߇ਛㅜߢᛂߜಾࠄࠇߡ tap ᢙ߇ 10 ᧂḩߣߥࠆਛᢿဳ
interrupted type㧘tap ᢙ߇
10 ࠍ⿧߃ࠆㆊ೾ဳ
overproduced typeߩ㧟㘃ဳߦಽ߆ࠇࠆ‫ޕ‬వߩႎ๔㧔ᐢ㊀, 2001㧕ߢߪ㧘ਛㅜߢ tap
߇ᛮߌ⪭ߜࠆ⇣ဳࠍၮᧄဳࠃࠅ⚦ಽߒߚ߇㧘ᧄⓂߢߪߘࠇࠄࠍ৻᜝ߒߡ⣕⪭ဳ㧔missed type㧕ߣߒ
ߚ‫ߢߎߎޕ‬⣕⪭ߣߪ tap 㑆㓒߇ೋ⊒ tap ೉ߢ᳞߼ߚᐔဋ㑆㓒㧗㧝ᮡḰ஍Ꮕ㧔⑽㧕ࠍ⿧߃㧘㧢⑽ᧂḩߣ
ቯ⟵ߒߚ‫ޕ‬Table㧞ߦ㧘㧠ߟߩ tap ೉ဳߩ಴⃻₸ࠍ਄ㅀߩ⁁ᘒ㧭, 㧮, 㧯೎ߦᢛℂߒߚ‫⁁ޕ‬ᘒ㧭ߪ
ᮡḰဳ tap ೉ߩߺߢභ߼ࠄࠇߚ‫⁁ޕ‬ᘒ㧮ߢߪᮡḰဳ߇߶߷ඨᷫߒ㧘ઍࠊߞߡਛᢿဳ㧘⣕⪭ဳ㧘ㆊ೾
6CDNG㧞 VCR ೉಴⃻₸㧔㧑㧕ߩ⁁ᘒ㑆Ყセ
㫋㪸㫇೉ဳ
㩷㩷ⵍ㛎⠪㩷㪰㫄
⁁ᘒ㩷㪘
ᮡḰဳ
ਛᢿဳ
⣕⪭ဳ
ㆊ೾ဳ
⸘
㪈㪇㪇㪅㪇
㪇㪅㪇
㪇㪅㪇
㪇㪅㪇
㪈㪇㪇㪅㪇
㪋㪍㪅㪉
㪈㪌㪅㪋
㪇㪅㪇
㪈㪇㪇㪅㪇
⁁ᘒ㩷㪙
㪊㪏㪅㪋
⁁ᘒ㩷㪚
㪇㪅㪇
㪏㪌㪅㪎
㪈㪋㪅㪊
㪇㪅㪇
㪈㪇㪇㪅㪇
㩷㩷ⵍ㛎⠪㩷㪠㪿
⁁ᘒ㩷㪘
㪈㪇㪇㪅㪇
㪇㪅㪇
㪇㪅㪇
㪇㪅㪇
㪈㪇㪇㪅㪇
⁁ᘒ㩷㪙
㪌㪊㪅㪍
㪊㪊㪅㪊
㪎㪅㪊
㪌㪅㪏
㪈㪇㪇㪅㪇
⁁ᘒ㩷㪚
㪇㪅㪇
㪏㪏㪅㪌
㪊㪅㪏
㪎㪅㪎
㪈㪇㪇㪅㪇
㩷㩷ⵍ㛎⠪㩷㪫㫅
⁁ᘒ㩷㪘
㪈㪇㪇㪅㪇
㪇㪅㪇
㪇㪅㪇
⁁ᘒ㩷㪙
㪊㪐㪅㪇
㪊㪋㪅㪉
㪉㪋㪅㪋
⁁ᘒ㩷㪚
㪈㪋㪅㪉
㪋㪉㪅㪐
㪋㪉㪅㪐
㪇㪅㪇
㪉㪅㪋
㪇㪅㪇
㪈㪇㪇㪅㪇
㪈㪇㪇㪅㪇
㪈㪇㪇㪅㪇
広重佳治：行動的覚醒維持法によるマイクロスリープの実験的検討
45
ဳߥߤߩ⺋േ૞ߩභ߼ࠆഀว߇ 60㧑એ਄㧔Tn㧘Ym㧕޽ࠆ޿ߪ 50㧑ㄭߊ㧔Ih㧕ߣჇ߃㧘ᄙ᭽ߥㆇേ
ࡄ࠲ࡦ߇ᷙ࿷ߔࠆᒻߢㆇേߩ⛽ᜬ߇࿑ࠄࠇߡ޿ࠆߎߣ߇᣿ࠄ߆ߣߥߞߚ‫⁁ޕ‬ᘒ㧯ߢߪᮡḰဳ߇ᶖᄬ
ߒߡਛᢿဳ߇ఝ൓ߣߥࠅ㧘⁁ᘒ㧭ߣߪ㆑ߞߚᗧ๧ߢߩㆇേࡄ࠲ࡦߩන⚐ൻ߇↢ߓߚ‫⁁ߦ߁ࠃߩߎޕ‬
ᘒߩ㆑޿ߦᔕߓߡ tap ೉ဳߩ಴⃻₸ߦᏅ⇣߇↢ߓࠆ௑ะߪ㧟ฬߩⵍ㛎⠪ߢ߶߷ห᭽ߢ޽ߞߚ‫ޕ‬
એ਄ߩࠃ߁ߦ㧘⁁ᘒ㧭ߪⴕേ⊛ߦ߽↢ℂ⊛ߦචಽߦ⋡ⷡ߼ߚ⁁ᘒߢ޽ࠅ‫⁁ޔ‬ᘒ㧯ߪㆇേ஗ᱛࠍ઻
޿㧘౉⌁㧔sleep onset㧕ߦ㘃ߒߚ⁁ᘒߦ޽ߞߚ‫ߦࠇߎޕ‬ኻߒ㧘⁁ᘒ㧮ߪࡑࠗࠢࡠࠬ࡝࡯ࡊߩ⊒⃻ࠍ␜
ໂߔࠆ․ᓽ߇޽ߞߚ‫ࠅ߹ߟޕ‬㧘ਇᢿߦ⺋േ૞߇ଚ౉ߒߟߟ߽ߘߩୃᓳࠍⴕ߁ߎߣߢ tap ㆇേߩㆀⴕ
߇⛽ᜬߐࠇߚ‫↢ߩߘޕ‬ℂ⊛ߥⷡ㉕᳓Ḱߪⷡ㉕ߣ⌧⌁ߩ⒖ⴕ⁁ᘒߦ޽ࠆ․ᓽࠍ␜ߒߚ‫ޕ‬
⠨ኤ
ࡑࠗࠢࡠࠬ࡝࡯ࡊߪⷡ㉕⁁ᘒߦ⓭ᅤଚ౉ߔࠆ⍴ᤨ㑆ߩ⃻⽎ߣߐࠇࠆ߇㧘ߎࠇࠍ⌧⌁ߣߺߥߒߡࠃ
޿߆ߤ߁߆ߪቇⴚ⊛ߥ⺰⼏߇ᔅⷐߢ޽ࠆߣߐࠇࠆ㧔Harrison & Horne, 1996㧕‫⎇ᧄޕ‬ⓥߪⷡ㉕ߣ⌧⌁
ߩ⒖ⴕߩㅪ⛯ᕈࠍ⠨ኤߔࠆߚ߼ߩࡕ࠺࡞ߣߒߡࡑࠗࠢࡠࠬ࡝࡯ࡊߦ⌕⋡ߒ㧘ߘߩⴕേ⊛ߥ⃻ࠇࠍ↢
ℂ⊛ߥ․ᓽ⸥ㅀߩᔅⷐ᧦ઙߣߒߡታ㛎⊛ߦᬌ⸛ߒߚ‫ⴕߩࡊ࡯࡝ࠬࡠࠢࠗࡑޕ‬േ⊛ࠕࡊࡠ࡯࠴ߣߒߡ㧘
ᧄ⎇ⓥߪⷡ㉕⛽ᜬߩദജࠍ᳞߼ࠆ৻ᣇߢ㧘⥄ὼߥ౉⌁⚻ㆊߩ⎕უ߇ዊߐ޿ⵍ㛎⠪ࡍ࡯ࠬߩ੤ઍᑼ
VCR ㆇേࠍ↪޿㧘หᤨߦᗵ࿶࠮ࡦࠨࠍࠬࠗ࠶࠴ߣߒߡ↪޿ߡ୘‫ ߩޘ‬VCR ㆇേࡄ࡜ࡔ࡯࠲ߩቯ㊂⊛⸘
᷹ࠍⴕߞߚ㧔ᐢ㊀㨯Dorokhov㨯଻㊁㧕‫ޕ‬
ᧄ⎇ⓥ⚿ᨐߪ㧘ࡑࠗࠢࡠࠬ࡝࡯ࡊߩⴕേ⊛ߥ⃻ࠇࠍ␜ໂߔࠆ tap ㆇേߩ⁁ᘒࠍ᣿ࠄ߆ߦߒߚ‫ߘޕ‬
ࠇߪ⁁ᘒ㧮ߣ๮ฬߒߚ߽ߩߢ㧘ᄙ᭽ߥㆇേࡄ࠲ࡦߩ⺋േ૞߇ਇᢿߦଚ౉ߒ㧘߆ߟߘߩୃᓳࠍ⹜ߺߥ
߇ࠄㆇേㆀⴕ⥄૕ࠍ⛽ᜬߔࠆ․ᓽ߇޽ߞߚ‫⁁ߩߎޕ‬ᘒ㧮ߩ಴⃻ߪ㧘ⴕേ⊛ߦ߽↢ℂ⊛ߦ߽⋡ⷡ߼ߚ
⁁ᘒ㧭ߦᓟ⛯ߒ‫ޔ‬ㆇേ஗ᱛߩ⋥೨ߢ⌧⌁ߩ೔᧪߇ㄭ޿⁁ᘒ㧯ߦవⴕߔࠆߣ޿߁⒖ⴕ㑐ଥࠍ␜ߒߚ‫ޕ‬
ࡑ ࠗ ࠢ ࡠ ࠬ ࡝ ࡯ ࡊ ߩ ⴕ േ ⊛ ߥ ⥃ ᐥ ᚲ ⷗ ߣ ߒ ߡᓥ᧪⍮ࠄࠇߡ޿ࠆ⥄േⴕേ∝୥⟲㧔 automatic
behavior syndrome㧕ߪ㧘ᣣᏱ↢ᵴߩ૞ᬺ႐㕙㧔ゞߩㆇォ㧘㘩ེᵞ޿㧘ࠦࡦࡇࡘ࡯࠲ᠲ૞㧘ᢱℂߥߤ㧕
ߩਛߢⴕὑߩ⥄ⷡ߇⓭ᅤᶖ߃ᄬߖ㧘ᣇะ߿૏⟎ߩⓨ㑆ቯ૏޽ࠆ޿ߪᤨ㑆⊛ㅪ⛯ᕈߦߟ޿ߡߩᗧ⼂߇
৻ᤨ⊛ߦᰳ⪭ߒߡᒰੱߦߪ⥄ⷡߐࠇߥ޿ⴕേ਄ߩ⺋ࠅߣ߆↢๮ߦ㑐ࠊࠆෂ㒾ߥⴕὑࠍߊࠅ㄰ߔ∝⁁
ߢ޽ࠆ(Guilleminaut, Billard, Montplaisir, & Dement, 1975㧧 Horne & Reyner, 1995)‫ޕ‬Guilleminaut ࠄ⥄
േⴕേ∝୥⟲ߦߟ޿ߡታ㛎⊛ߥᬌ⸛ࠍട߃㧘ᰴߩࠃ߁ߥ⚿ᨐࠍ⚫੺ߒߡ޿ࠆ‫ޕ‬ᣣਛߩ⌁᳇ࠍ⸷߃ࠆ
⌧⌁㓚ኂ⠪ߪ૞ᬺⴕὑߩ⥄ⷡ߇⓭ᅤᒙ߹ߞߡㆀⴕ⢻ജ߇፣უߒ㧘ߘߩ㓙ߩ⋡ⷡ߼ߩታᗵߪਲߒߊ㧘
߻ߒࠈ⌁᳇ߣߩᩰ㑵⁁ᘒߦ޽ߞߚߣߒߡ޿ࠆ‫ߦࠄߐޕ‬㧘ߘߩࡐ࡝ࠣ࡜ࡈ⊛ᚲ⷗ߦࠃࠆߣ㧘ౖဳ⊛ߥ
Ბ㓏㧝⸥㍳߇⍴޿ᤨ㑆㑆㓒ߢ໊⓭ߦ⟲⊒ߒ㧘ਛᔃㇱߣᓟ㗡ㇱߩ⣖ᵄߦหᦼᕈǰᵄ߇⟲⊒ߔࠆߣႎ๔
ߒߡ޿ࠆ‫ޕ‬
ห᭽ߦ㧘ࡑࠗࠢࡠࠬ࡝࡯ࡊߩⴕേ⊛⃻ࠇߣ⠨߃ࠄࠇࠆ߽ߩߣߒߡ㧘VCR ㆇേߩ㑆㓒ᑧ㐳߇޽ࠆ‫ޕ‬
%CTUMCFQP ߣ &GOGPV㧔㧕߇ታᣉߒߚ 5#6 ⺖㗴㧔a serial alternation task㧕ߪ㧞୘ߩࡑࠗࠢࡠࠬࠗ࠶
࠴ࠍ੤੕ߦⷙೣ⊛ߦ᛼ߒ⛯ߌࠆ߽ߩߢ㧘ၮḰᤨ㑆ߩ㧞⑽ࠃࠅ㐳޿ࠬࠗ࠶࠴᛼ߒ㑆㓒
ICRࠍᏅߒᒁ޿
ߚᱷࠅߩㆇേ⛮⛯ᤨ㑆ߩഀว㧔VCR ᤨ㑆₸㧕ࠍⷡ㉕᳓Ḱߩⴕേ⊛᷹ᐲߣߒߡ޿ࠆ‫ޕ‬VCR ᤨ㑆₸ߪ㧘ⷡ
㉕⁁ᘒ߇㜞ߊᜬ⛯ߔࠆߣ߈ߪ㑆㓒㧔ICR㧕ߩᑧ㐳߇ዋߥ޿ߩߢ ㄭ޿୯ࠍߣࠅ㧘෻ኻߦⷡ㉕᳓Ḱ
߇ૐਅߔࠆߣ㑆㓒ߩᑧ㐳ࠍ઻߁ߩߢ VCR ᤨ㑆₸ߩૐਅ߇↢ߓࠆߣ઒ቯߢ߈ࠆ‫ޕ‬੐ታ㧘ᓐࠄߩႎ๔ߦ
ࠃࠆߣ㧘VCR ᤨ㑆₸ߪⷡ㉕ᤨߩ૞ᬺߢ㜞ߊ㧔㧕㧘ᢿ⌁ਛߩ߁ߣ߁ߣ⁁ᘒߢ⺖ߒߚ૞ᬺᤨߦૐਅ
㧔㧕ߒߚߣ޿߁‫ޕ‬VCR ૞ᬺ⺖㗴㧔a finger tap task㧕ߩᚑ❣ࠍၮḰᄛߣᢿ⌁ᓟߩ࿁ᓳᄛߣߢᲧセ
46
地 域 学 論 集 第 １ 巻 第 １ 号（2004）
ߒߚ %CUCITCPFG ࠄ㧔㧕ߦࠃࠆߣ㧘VCR ㆇേߩ㑆㓒㧔+6+㧕߇㧡⑽߅ࠃ߮ ⑽ߣ⍴޿߽ߩߪⷡ
㉕ߣ⌧⌁ߩ⒖ⴕㆊ⒟ߢ↢ߓࠆߎߣ߆ࠄࡑࠗࠢࡠࠬ࡝࡯ࡊߩⴕേ⊛ࠛࡇ࠰࡯࠼ߣߐࠇ㧘ᦨ㐳 ⑽ߩ
+6+㧔౉⌁ẜᤨ㧕߆ࠄ඙೎ߐࠇࠆߣߒߚ‫ޕ‬
ㆇേߩታⴕᯏ⢻ߣ⛽ᜬᯏ⢻㧔వⴕ VCR ߆ࠄᓟ⛯ VCR ߳ߩㆇേᖱႎߩฃߌᷰߒᯏ⢻㧕ߩ඙೎ߪ VCR
ㆇേߩℂ⸃ߦߣߞߡ㊀ⷐߢ޽ࠆ‫ޕ‬ᯏ᪾⊛ࠬࠗ࠶࠴ࠍ ᚻ㧔ਥߦ㧘೑߈ᚻ㧕ߢ➅ࠅ㄰ߒ᛼ߐߖࠆᓥ᧪
ߩ⎇ⓥߦ߅޿ߡߪ㧘VCR ㆇേߩ㑆㓒ᑧ㐳߇᛹ᶖߩ╭✕ᒛߩૐਅ㧘ᤨ㑆⍮ⷡᯏ⢻޽ࠆ޿ߪㆇേᖱႎߩ
ฃߌᷰߒࠍมࠆ਄૏ᯏ⢻ߩᓟㅌ㧘ߐࠄߦߪⷡ㉕⛽ᜬദജߩᷫᒙߩ޿ߕࠇߢ޽ࠆߩ߆㧘ߘߩ⼂೎߇ᚻ
⛯߈਄࿎㔍ߣᕁࠊࠇࠆ‫߫߃଀ޕ‬㧘VCR ᤨ㑆₸㧔Carskadon & Kleitman, 1979㧕ߦߟ޿ߡߺࠆߣ㧘ⷡ㉕
᳓Ḱߩૐਅࠍᛠីߔࠆᜰᮡߣߒߡߩታ↪ᕈߪ޽ࠆ߽ߩߩ㧘ㆇേ೙ᓮߩߤ߁޿ߞߚ㕙ߩᄌኈࠍߣࠄ߃
ߚᜰᮡߢ޽ࠆߩ߆ߪᦌᤒߢ޽ࠆ‫⎇ᧄޕ‬ⓥߩ੤ઍᑼ VCR ㆇേߩᚻ⛯߈ߪ VCR ࿁ᢙߣᚻߩಾࠅᦧ߃ߩᠲ
૞ࠍ฽ߺ㧘߹ߚ⩄㊀࿶ߩࠕ࠽ࡠࠣ㊂ࠍㅪ⛯⸘᷹ߔࠆߎߣߢ㧘ㆇേㅪ㎮㧔VCR ೉ߩᒻᚑ㧕ࠍ⛽ᜬߔࠆ
਄૏ᯏ⢻ߣ୘‫ ߩޘ‬VCR ࠍታⴕߔࠆ᛹ᶖᯏ⢻ߣߩ඙೎ࠍ⹜ߺߚ‫⚿ߩߘޕ‬ᨐ㧘ㆇേㅪ㎮ߩ⛽ᜬᯏ⢻ߩᄌ
ኈߪᏀฝߘࠇߙࠇߩᚻߢㆀⴕߐࠇࠆ VCR ೉ဳ㧔⣕⪭ဳ㧘ਛᢿဳ㧘ᤨߦㆊ೾ဳ㧕ߣᚻߩಾࠅᦧ߃ᤨ㑆
ߩᑧ㐳ߣߒߡ⃻ࠇ㧘୘‫ ߩޘ‬VCR ㆀⴕᯏ⢻ߩᄌኈߪ VCR ߩ⩄㊀࿶ᷫዋߣ㑆㓒ᑧ㐳ߣߒߡ⃻ࠇߚ‫ޕ‬ਔᄌ
ኈߩ㑆ߦߪ৻ቯߩ㑐ㅪࠍ⹺߼ߚ‫ޕ‬
⌧⌁ࡐ࡝ࠣ࡜ࡈ߇⌧⌁⚻ㆊߩቴⷰ⊛ߥࠕࡊࡠ࡯࠴ߣߒߡ᦭ജߥᣇᴺߢ޽ࠆߎߣߦ⇼޿ߪߥ޿߇㧘
ࡑࠗࠢࡠࠬ࡝࡯ࡊߩ․ᓽ⸥ㅀߦᲑ㓏㧝᭎ᔨࠍេ↪ߔࠆὐߦߪ໧㗴߇޽ࠈ߁‫⌁⌧ޕ‬Ბ㓏ߪ㧘⣖ᵄߩၮ
␆ᓞേᵄ޽ࠆ޿ߪ․ᓽᵄ߇৻ቯߩ቟ቯᕈࠍ଻ᜬߒߡ⚻ㆊߔࠆߣ޿߁೨ឭߦၮߠ޿ߚ᭎ᔨߢ޽ࠆ‫ߘޕ‬
߁ߒߚ೨ឭ߇ᚑ┙ߒ㔍޿⁁ᘒࠍ✚⒓ߒߡᲑ㓏㧝ߣߒߡ޿ࠆߩ߇ታᖱߢ޽ࠆ‫ߡߞ߇ߚߒޕ‬㧘ᦌᤒ੐⽎
ߩነߖ㓸߼ߢ޽ࠆᲑ㓏㧝᭎ᔨߦࠃࠆࡑࠗࠢࡠࠬ࡝࡯ࡊߩ⸥ㅀߪᦌᤒߐࠍഥ㐳ߔࠆෂ㒾߇ዊߐߊߥ
޿‫ޕ‬੐ታ㧘ஜᏱ⠪ߩࡑࠗࠢࡠࠬ࡝࡯ࡊࠍ⺞ߴߚ⎇ⓥ㧔Harrison & Horne,1996㧕ߦࠃࠆߣ㧘Ბ㓏㧝ߣ
ߒߚ⣖ᵄࡄ࠲ࡦߪᄙ᭽߆ߟᦌᤒߢ್ቯ⠪㑆ߩ৻⥌₸߇߈ࠊ߼ߡᖡ޿ߎߣ߆ࠄ㧘⍍⋡߿✭ᓢ⌒⃿ㆇേ
ߩ⵬ቢᜰᮡߩㅊടࠍᔅⷐߣߒߡ޿ࠆ‫ޕ‬Harrison ࠄߪ㧡⑽඙↹Ფߦ⣖ᵄࡄ࠲ࡦ㧔ǰᵄ㧘ǩᵄߩᰳᅤ㧘
㗡㗂ㇱ㍈ᵄ㧕ߣ⌒⃿ㆇേ㧔✭ᓢ⌒⃿ㆇേ㧕ࠍ್⺒ߒ㧘㧡⑽એ਄ᜬ⛯ߔࠆ 4-7Hz ᵄ㧘ǩᵴേ㧔8-11Hz㧕
ߩᰳᅤ㧘⍍⋡ᰳᅤ㧘✭ᓢ⌒⃿ㆇേ޽ࠆ޿ߪ᣿⏕ߥ㗡㗂ㇱ㍈ᵄߩ಴⃻ߥߤߩ↢ℂᜰᮡߩⶄว⊛ߥ⚵ߺ
วࠊߖ߆ࠄࡑࠗࠢࡠࠬ࡝࡯ࡊߩ․ᓽ߇⸥ㅀߢ߈ࠆߣߒߡ޿ࠆ‫ޕ‬
ࡑࠗࠢࡠࠬ࡝࡯ࡊߩ್ቯᤨ㑆ߦߟ޿ߡ㧘Harrison ࠄߩ⸳ቯ୯ߩ㧡⑽ߪ⌁᳇ߩቴⷰ⊛ᬌᩏᴺ㧔౉⌁
ẜᤨ෻ᓳ᷹ቯᬌᩏ㧦MSLT㧕ߢ↪޿ࠄࠇࠆ 30 ⑽ၮḰߣߩᲧセࠍ⋡⊛ߣߒߚ߽ߩߢ޽ߞߡ㧘ࡑࠗࠢࡠ
ࠬ࡝࡯ࡊߩ↢ℂቇ⊛․ᓽࠍ⺞ߴࠆ਄ߢߩᦨㆡ㐳ߣߒߡㆬቯߐࠇߚ߽ߩߢߪߥ޿‫⎇ᧄޕ‬ⓥ⚿ᨐ߆ࠄ㧘
ࡑࠗࠢࡠࠬ࡝࡯ࡊߩⴕേ⊛ߥ⃻ࠇ߇␜ໂߐࠇߚ⁁ᘒ㧮ߦ߅޿ߡ⷗಴ߐࠇߚ VCR 㑆㓒ߩᑧ㐳㧔 ଀㧕
ߪ VCR ߇㧝ߟߥ޿ߒ㧞ߟᰳ⪭ߒߚᤨ㑆㐳㧔㧟㨪㧠⑽㧕߇ᄢඨߢ޽ߞߚ‫ޕ‬ട߃ߡ㧘ᚻߩಾࠅᦧ߃ᤨ㑆
ߩᑧ㐳㧔 ଀㧕ߪ⚂㧥ഀ߇㧤⑽ᧂḩ㧔ᐔဋ r ⑽㧕ߢ޽ߞߚ‫ᤨޕ‬㑆⍮ⷡ㧔ਥⷰ⊛ߥ㧝⑽㑆㓒㧕
߇ߘࠇߦട๧ߐࠇߡ޿ࠆὐࠍ⠨ᘦߔࠆߣ㧘ࡑࠗࠢࡠࠬ࡝࡯ࡊߪ߅߅ࠃߘ㧞⑽߆ࠄ㧣⑽ߩᤨ㑆⚻ㆊࠍ
ߣࠆ߽ߩߣផ᷹ߐࠇࠆ‫ޕ‬
広重佳治：行動的覚醒維持法によるマイクロスリープの実験的検討
47
ᒁ↪ᢥ₂
Åkerstedt, T. 1988 Sleepiness as a consequence of shift work. Sleep, 11, 17-34.
Anliker, J. 1963 Variations in alpha voltage of the electroencephalogram and time perception. Science, 140, 1307-1309.
Carskadon,M A. Dement, W C. 1979 Effects of total sleep loss on sleep tendency. Perceptual and Motor Skills, 48,
495-506 .
Casagrande M., Braibanti,P., Gennaro, De., Violani, C., & Bertini, M. 1991 A tapping task as a behavioral index of sleep
onset. Journal od Sleep Research, 20A, 230.
Casagrande, M.,Testa, P., Violani, C., Mastrantonio, N., & Bertini, M. 1994 A tapping task as measure of sleepiness in
a behavioral multiple sleep latency test. Journal of Sleep Research, 3, Supplement 1, 39.
Casagrande, M.,Testa, P., Violani, C., Gennaro, De., & Bertini, M. 1996 Sleep onset latency and sleep-wake alternating
pattern during sleep onset period:Effects of sleep deprivation evaluated by a finger tapping task FTT. 10th Annual
Meeting of APSS, Wasington, D.C.
Guilleminaut, C. Billard, M. , Montplaisir, J., & Dement, W C. 1975 Altered States of consciousness in disorders of
daytime leepiness. Journal of the neurological Sciences, 26, 377-393.
Harrison, Y. & Horne, J.A. 1996 Occurrence of 'microsleep' during daytime sleep onset in normal subjects.
Electroencephalography and Clinical Neurophysiology, 98, 411-416.
ᐢ㊀૫ᴦ㨯Dorokhov,V.B.㨯଻㊁ቁᒄ 1994 ౉⌁ᦼߩ㓐ᗧㆇേߦ㑐ߔࠆⴕേ↢ℂቇ⊛⎇ⓥ. ᣣᧄᔃℂቇળ╙ 58 ࿁
ᄢળ⊒⴫⺰ᢥ㓸, 509.
ᐢ㊀૫ᴦ 1999 ౉⌁ᦼ⌒⃿ㆇേߩ⥄േᬌ಴. ⣖ᵄߣ╭㔚࿑, 27, 421-432.
ᐢ㊀૫ᴦ 2001 ౉⌁⁁ᘒߦ߅ߌࠆ tap ㆇേߩᄌኈߣ EEG㨯EOG Ბ㓏. ᣣᧄᔃℂቇળ╙ 65 ࿁ᄢળ⊒⴫⺰ᢥ㓸, 41.
ᐔ㊁᤯๋㨯ᐢ㊀૫ᴦ 2001 ౉⌁ㆊ⒟ߦ߅ߌࠆ⣖ᵄǩᵴേߩᤨ㑆ᄌേߣߘߩ⥄േ⸘᷹. 㠽ขᄢቇᢎ⢒࿾ၞ⑼ቇㇱ♿
ⷐ㧔ᢎ⢒㨯ੱᢥ⑼ቇ㧕, 2, 25-33.
ᐢ㊀૫ᴦ 2002 ౉⌁⁁ᘒߦ㑐ߔࠆ↢ℂᔃℂቇ⊛⎇ⓥ.
ඳ჻⺰ᢥ㧔╳ᵄᄢቇ㧕.
Hori, T., Hayashi, M., & Morikawa, T. 1994 Topographical EEG changes and the hypnagogic experience. In R.D. Ogilvie
& J.R. Harsh Eds., Sleep onset-Normal and abnormal processes. Washington, D.C: American Psychological
Association. Pp.237-253.
Horne, J A. Reyner, L.A. 1995 Sleep-related vehicle accidents. British Medical Journal, 310, 565-567.
Johnson, L.C. 1982 Sleep deprivation and performance. In W. Webb
Ed., Biological Rhythms, Sleep and Performance,
Pp.111-141.
Kamiya, J. 1961 Behavioral, subjective, and physiological aspects of drowsiness and sleep. In D.W. Fishe, & S.R. Maddi
Eds, Functions of varied experience. Homewood Illinois: Dorsey Press, Pp. 145-174.
Kleitman, N. 1987 Sleep and Wakefulness. Chicago: The University of Chicago Press.
Ogilvie, R D. Wilkinson, R T. Allison, S. 1989 The detection of sleep onset: Behavioral, physiological, and subjective
convergence. Sleep, 12, 458-474. Rechtschaffen, A. 1994 Sleep onset: Conceptual issues. In R.D. Ogilvie & J.R. Harsh Eds., Sleep onset-Normal and
abnormal processes. Washington, D.C:American Psychological Association, Pp.3-17.
Rechtshcaffen, A. & Kales, A. 1968 A manual of standardized terminology, techniques and scoring system for sleep
stages of human subjects. Washington, D.C.: Public Health Service, U.S. Government Printing Office.
48
地 域 学 論 集 第 １ 巻 第 １ 号（2004）
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Departmernt of Regional Education, Faculty of Regional Sciences, Tottori University
Microsleep is usually defined as a sudden, short-lasting burst of stage 1 sleep although it is still left open
whether the phenomenon should be considered as sleep. With all clinical observations, such as automatic
behavior syndrome in hypersomniacs and mood and cognitive psychomotor performance in depressed
patients, few basic experimental researches have been attempted on microsleep. The present study was aimed
at examining the appearance of microsleep by using a behavioral maintenance of wakefulness test where
subjects were instructed to perform a dual alternation task of finger tappings for 40 minutes: Right-hand
tapping was performed successively 10 times and then switched into left-hand tapping, which in turn was
followed by right-hand one and so on. The results indicated the specific state to microsleep was present,
behaviorally characterized as the repeated occurrence of mistakes and corrections of tapping movements
against the physiological background of intermitted EEG alpha activity and frequent slow eye movements.
Microsleep seems to last roughly from 2 to 7 seconds, judging from delays of inter-tap intervals and
alternation gaps between both hands.