ㄆ▱㻌 㻟㻭㻹㻜㻣㻢㻌 ᪥ᚰ➨ 㻣㻡 ᅇ䠄㻞㻜㻝㻝䠅㻌 ⬻ᦆയᝈ⪅࠾ࡅࡿὀពࡢ▐ࡁ࢚࣮ࣛࣃࢱࣥࡘ࠸࡚ ۑගᡞዉ 1࣭⃝⏣ ᲈ 1࣭ᶫᮏඃⰼ㔛 2࣭ྜྷ⏣ᘯྖ 3 (ᗈᓥ┴㧗ḟ⬻ᶵ⬟ࢭࣥࢱ࣮1࣭⚟ᒣᏛே㛫ᩥᏛ㒊 2࣭ẚᒣᏛ⌧ᙺᩥᏛ㒊 3) ࣮࣮࢟࣡ࢻ㸸RSVP㸪ὀពࡢ▐ࡁ㸪࢚࣮ࣛࣃࢱࣥ Attentional blink and error patterns in brain injury. 1 Rina MITSUTO , Kozue SAWADA1 , Yukari HASHIMOTO2 and Hiroshi YOSHIDA3 (Hiroshima Higher Brain Function Center1,Fukuyama University2,Hijiyama University3) Key words: RSVP, attentional blink, error patterns ᧓ ƾ Ƶ lj T1 Nj LJ OU ǜ ƞ T2 ⤖ᯝ Ꮫ⏕⩌㸪ᝈ⪅⩌࠾ࡅࡿT2ࡢ᳨ฟ⋡ࢆᅗ2♧ࡍࠋT2ࡢ ᳨ฟ⋡ࡘ࠸࡚㸪⩌(Ꮫ⏕㸪ᝈ⪅)×ㄢ㢟(༢୍ㄢ㢟㸪㔜ㄢ 㢟) ×Lag (Lag0㸪Lag2㸪Lag4㸪Lag6㸪Lag8)ࡢ3せᅉࡢศᩓศᯒ ࢆ⾜ࡗࡓ⤖ᯝ㸪⩌㸪ㄢ㢟㸪Lagࡢຠᯝࡀࡍ࡚ㄆࡵࡽࢀࡓ (p<.001)ࠋࡲࡓ㸪⩌×ㄢ㢟×Lagࡢస⏝ࡀㄆࡵࡽࢀ (p<.05)㸪 ⩌ู༢⣧࣭༢⣧ຠᯝ᳨ᐃࢆ⾜ࡗࡓ⤖ᯝ㸪༢୍ㄢ㢟࡛ࡣ㸪 ᝈ⪅⩌ࡣᏛ⏕⩌ࡼࡾࡶ㸪Lag0㸪2㸪4㸪6࡛T2ࡢ᳨ฟ⋡ࡀప ࡃ㸪㔜ㄢ㢟࡛ࡣ㸪ᝈ⪅⩌ࡣᏛ⏕⩌ࡼࡾࡶ㸪Lag0㸪4㸪6㸪 8࡛పࡗࡓ(p<.05)ࠋㄢ㢟ู࡛ࡣ㸪ᝈ⪅⩌࡛ࡣ㸪༢୍ㄢ㢟ࡢ᪉ ࡀ㔜ㄢ㢟ࡼࡾ㸪ࡍ࡚ࡢLag࡛T2ࡢ᳨ฟ⋡ࡀ㧗ࡃ㸪Ꮫ⏕ ⩌࡛ࡣ㸪༢୍ㄢ㢟ࡀ㔜ㄢ㢟ࡼࡾࡶ Lag2㸪4㸪6㸪8࡛㧗࠸ࡇ ࡀ♧ࡉࢀࡓ(p<.05)ࠋLagู࡛ࡣ㸪ᝈ⪅⩌࡛ࡣ㸪༢୍ㄢ㢟 㔜ㄢ㢟ࡢ୧᪉࠾࠸࡚Lag2㸪4㸪6࡛᭱ࡶపୗࡀࡳࡽࢀ㸪 Ꮫ⏕⩌࡛ࡣ㸪T2ࡢ᳨ฟ⋡ࡀ༢୍ㄢ㢟࡛ࡣᕪࡀ࡞ࡃ㸪㔜ㄢ㢟 ࡛ࡣ㸪Lag2㸪4࡛᭱ࡶపୗࡀࡳࡽࢀࡓ (p<.05)ࠋ 㔜ㄢ㢟ࡢT1ࡢṇ⟅⋡ࡘ࠸࡚㸪Ꮫ⏕⩌ᝈ⪅⩌࡛t᳨ᐃ ࢆ⾜ࡗࡓࡇࢁ㸪ᝈ⪅⩌ࡣᏛ⏕⩌ẚ࡚T1ࡢṇ⟅⋡ࡀప ࠸ࡇࡀ♧ࡉࢀࡓ(p<.01)ࠋࡲࡓ㸪T1ࢆࡢࡼ࠺ㄗࡗࡓ ࠸࠺࢚࣮ࣛࣃࢱࣥࡘ࠸࡚ศᯒࡋࡓࠋศᯒ࡛ࡣ㸪ࢱ࣮ࢤࢵࢺ ࡼࡾࡶ1ಶ๓(ࡲࡓࡣᚋ)ࡢᩥᏐࢆ⟅࠼ࡓሙྜࡣ㸪ࡑࢀࡒࢀ-1(ࡲ ࡓࡣ+1)⾲♧ࡋ㸪ࡑࢀࡒࢀࡢಶᩘࢆᩘ࠼㸪ヨ⾜ᩘ࡛ࡗ࡚ ᛂ⋡ࢆồࡵࡓࠋᏛ⏕⩌ᝈ⪅⩌ࡢྛ࢚࣮ࣛࣃࢱࣥ࠾ࡅ ࡿᖹᆒᛂ⋡ࢆᅗ3♧ࡍࠋ⩌(Ꮫ⏕࣭ᝈ⪅)࢚࣮ࣛࣃࢱࣥ (-1㸪+1㸪+2㸪+3㸪ࣜࢫࢺእ)ࡢ2せᅉศᩓศᯒࡢ⤖ᯝ㸪⩌࠾ࡼ ࡧ࢚࣮ࣛࣃࢱࣥࡢຠᯝࡀࡳࡽࢀࡓ(p<.01)ࠋࡲࡓ㸪⩌×࢚ࣛ ࣮ࣃࢱࣥࡢస⏝ࡀㄆࡵࡽࢀ (p<.05)㸪⩌ู༢⣧ຠᯝ᳨ ᐃࢆ⾜ࡗࡓࡇࢁ㸪ᝈ⪅⩌ࡢ᪉ࡀᏛ⏕⩌ࡼࡾࡶ+1㸪+2㸪ࣜ ࢫࢺእ࠾࠸࡚㸪ㄗ⟅ᩘࡀከ࠸ࡇࡀ♧ࡉࢀࡓ(p<.01)ࠋ࢚ࣛ ࣮ࣃࢱู࡛ࣥࡣ㸪Ꮫ⏕⩌࡛ࡣ㸪+1ࡢㄗࡾࡀ᭱ࡶከࡃ㸪ᝈ⪅ ⩌࡛ࡣ㸪+1ࣜࢫࢺእࡢㄗࡾࡀከ࠸ࡇࡀ♧ࡉࢀࡓ(p<.01)ࠋ 㻝㻜㻜㻌 Ꮫ⏕⩌ ༢୍ㄢ㢟 㻤㻜㻌 Ꮫ⏕⩌ 㔜ㄢ㢟 㻢㻜㻌 ᝈ⪅⩌ ༢୍ㄢ㢟 㻠㻜㻌 ᝈ⪅⩌ 㔜ㄢ㢟 㻞㻜㻌 㻞㻜㻌 Ꮫ⏕⩌ 㻝㻤㻌 ᝈ⪅⩌ 㻝㻢㻌 ᖹᆒᛂ⋡㻔䠂㻕 㼀㻞䛾᳨ฟ⋡㻔䠂㻕 㻝㻠㻌 㻝㻞㻌 㻝㻜㻌 㻤㻌 㻢㻌 㻠㻌 㻞㻌 㻞 㻠 㻢 㼀㻝䛸㼀㻞䛾ᶆⓗ㛫㝸㻔㻸㼍㼓㻕 㻤 㻟 㻞 䝸䝇䝖እ 㻜 㻝 㻜㻌 㻜㻌 㻙㻝 ┠ⓗ 㧗 ㏿ ㏲ ḟ ど ぬ ᥦ ♧ (rapid serial visual presentation 㸹 ௨ ୗ RSVP) ㄢ㢟࡛ࡣ㸪ඛ⾜ᥦ♧ࡉࢀࡿࢱ࣮ࢤࢵࢺ(T1)ࡢฎ⌮ࢆồ ࡵࡿ㸪ࡑࡢᚋ 200㹼500ms ௨ෆᥦ♧ࡉࢀࡿᚋ⥆ࢱ࣮ࢤࢵ ࢺ (T2) ࡢ ฎ ⌮ ᡂ ⦼ ࡀ ప ୗ ࡍ ࡿ ࠋ ࡇ ࡢ ⌧ ㇟ ࢆ ὀ ព ࡢ ▐ ࡁ (Attentional Blink 㸹 ௨ ୗ AB) ࡪ (Reymond, Shapiro, & Arnell,1992) ࠋ ගᡞ࣭⃝⏣࣭ᶫᮏ࣭ྜྷ⏣(2010)ࡣ㸪⡆᫆∧ RSVP ㄢ㢟(50 ヨ ⾜)ࢆᖖᏛ⏕ᐇࡋ㸪ඛ⾜◊✲ྠᵝࡢ⤖ᯝ࡞ࡿࡇ ࢆ☜ㄆࡋࡓࠋࡑࡋ࡚㸪ὀពᶵ⬟ࡢపୗࡀࡳࡽࢀࡿ⬻ᦆയᝈ⪅ 3 ྡࢆᑐ㇟⡆᫆∧ RSVP ㄢ㢟ࢆᐇࡋ㸪ྛࠎࡢ㞀ᐖᵝ┦ AB ࡢ≉ᚩࡢ㛵㐃ᛶࡘ࠸᳨࡚ウࡋࡓࠋࡑࡢ⤖ᯝ㸪⬻ᦆയ㒊 ࡸὀព㞀ᐖࡢ⛬ᗘࡼࡗ࡚㸪AB ࡢ⌧ࢀ᪉ࡀ␗࡞ࡿࡇࡀ ♧ࡉࢀࡓࠋ ᮏ◊✲࡛ࡣ㸪ගᡞࡽ(2010)ᘬࡁ⥆ࡁ㸪⬻ᦆയࡼࡿㄆ▱ ᶵ⬟ࡢపୗ AB ࡢ㛵㐃ᛶࡘ࠸᳨࡚ウࡍࡿࡇࢆ┠ⓗࡋ㸪 ␗࡞ࡿ㒊ᦆയࢆᣢࡘ㸪17 ṓࡽ 70 ṓࡲ࡛ࡢ⬻ᦆയᝈ⪅ ⡆᫆∧ RSVP ㄢ㢟ࢆᐇࡋࡓࠋ ᪉ἲ ཧຍ⪅ ⏬ീୖ⬻ᦆയ㒊ࡀ᫂ࡽ࡛࠶ࡗࡓ㧗ḟ⬻ᶵ⬟ 㞀ᐖ⪅ 21 ྡ(m㸻48.4 ṓ㸪SD=11.64)㸪࠾ࡼࡧᖖᏛ⏕ 48 ྡ (m㸻21.5 ṓ㸪SD=1.70)ࠋ ᐇ㦂⨨ ࣀ࣮ࢺࣃࢯࢥࣥ(NEC㸪VersaPro VY)㸪࣐࢘ࢫ (NEC M-UAE55)㸪่⃭ࡣ㸪⅊Ⰽࡢ⫼ᬒ㯮࠶ࡿ࠸ࡣⓑ࡛ᥥ ࠸ࡓࡦࡽࡀ࡞ 46 ᩥᏐࢆ⏝࠸ࡓࠋ ᡭ⥆ࡁ ᐇ㦂ࡣ༢୍ㄢ㢟㔜ㄢ㢟ࡽ࡞ࡾ㸪ྛㄢ㢟ࡢᐇ 㡰ᗎࡘ࠸࡚ࡣ㸪ཧຍ⪅㛫࡛࢝࢘ࣥࢱ࣮ࣂࣛࣥࢫࢆࡗࡓࠋ ྛヨ⾜࡛ࡣ㸪7-15 ಶࡢ㯮ᩥᏐ⥆࠸࡚㸪➨ 1 ᶆⓗ(T1)࡛࠶ࡿ ⓑᩥᏐࡀ 1 ࡘᥦ♧ࡉࢀ㸪ࡑࡢᚋࡉࡽ 8 ࡘࡢ㯮ᩥᏐࡀᥦ♧ࡋ ࡓ(ᅗ 1)ࠋྛᩥᏐࡢᥦ♧㛫ࡣ 16.7ms ࡛࠶ࡾ㸪1 ࡘࡢᩥᏐࡀ ᥦ♧ࡉࢀ࡚ࡽḟࡢᩥᏐࡀᥦ♧ࡉࢀࡿࡲ࡛㛫࡛࠶ࡿ SOA(Stimulus Onset Asynchrony)ࡣ 100ms ࡋࡓࠋࡲࡓ㸪T1 ࡀᥦ♧ࡉࢀ࡚ࡽ T2 ࡀᥦ♧ࡉࢀࡿᶆⓗ㛫㝸ࡣ㸪ࡑࢀࡒࢀ㸪 0ms(Lag0) 㸪 200ms(Lag2) 㸪 400ms(Lag4) 㸪 600ms(Lag6) 㸪 800ms(Lag8)ࡢ 5 ᮲௳ࢆタࡅࡓࠋ➨ 2 ᶆⓗ(T2)ࡣ༑㡢ࡢ᭱ᚋ ࡢ͆ࢇ͇ࡢᩥᏐ࡛࠶ࡾ㸪50㸣ࡢ☜⋡࡛㸪T1 ࡑࢀ௨㝆ࡢ 8 ᩥ Ꮠࡢ࠸ࡎࢀᥦ♧ࡋࡓࠋྛࢭࢵࢩࣙࣥࡢヨ⾜ᩘࡣ㸪T2 ࢆྵࡴ ヨ⾜ࡀ SOA ᮲௳ࡈ 5 ヨ⾜ࡢィ 25 ヨ⾜㸪T2 ࢆྵࡲ࡞࠸ヨ ⾜ࡀ 25 ヨ⾜㸪ྜィ 50 ヨ⾜࡛࠶ࡗࡓࠋ㔜ㄢ㢟࡛ࡣ㸪ཧຍ⪅ ࡣ T1 ࡢⓑᩥᏐࢆㄞࡳྲྀࡿࡶ㸪͆ࢇ͇ ࡀᩥᏐิ୰ྵ ࡲࢀ࡚࠸ࡿྰࢆุ᩿ࡋࡓࠋ༢୍ㄢ㢟࡛ࡣ㸪ཧຍ⪅ࡣ T1 ࡢⓑᩥᏐࡣ↓どࡋ࡚ T2 ࡢ᭷↓ࡔࡅࢆุ᩿ࡋࡓࠋࡲࡓ㸪⦎⩦ ຠᯝࢆ㑊ࡅࡿࡓࡵ㸪ࡇࢀࡽ 2 ࡘࡢㄢ㢟ࡣࡑࢀࡒࢀูࡢ᪥ ⾜ࡗࡓࠋᐇ᪥ࡢ㛫㝸ࡣᖹᆒ 7.5 ᪥࡛࠶ࡗࡓࠋ 䜶䝷䞊䝟䝍䞁 ᅗ 2 Ꮫ⏕⩌ᝈ⪅⩌࠾ࡅࡿ T2 ࡢ᳨ฟ⋡ ᅗ 3 Ꮫ⏕⩌ᝈ⪅⩌ࡢ T1 ࡢᖹᆒㄗ⟅ᩘ ⪃ᐹ Ꮫ⏕⩌ࡢ㔜ㄢ㢟ࡢ T2 ࡢ᳨ฟ⋡ࡣ㸪ඛ⾜◊✲ྠᵝ T2 ࡀ 200㸪400ms ᥦ♧ࡉࢀࡓࡁపୗࡀࡳࡽࢀࡓࡀ㸪ᝈ⪅ ⩌࡛ࡣ㸪200㸪400ms ࡢࡳ࡞ࡽࡎ㸪600ms ࡛ࡢపୗࡀࡳࡽࢀࡓࠋ ࡇࡢࡇࡽ㸪⬻ᦆയᝈ⪅ࡣὀពࡢ▐ࡁࡢ㛫㝸ࡀ㛗࠸ࡇࡀ ⪃࠼ࡽࢀࡿࠋࡲࡓ㸪ᝈ⪅⩌࡛ࡣ㸪༢୍ㄢ㢟ࡢ᳨ฟ⋡ࡢࡤࡽࡘ ࡁࡸ㸪T1 ࡢぢⴠࡋࡀከ࠸࡞ࡢ≉ᚩࡀ࠶ࡗࡓࠋRSVP ㄢ㢟 ࡛ࡣὀពࡢ㞟୰ࡀጉࡆࡽࢀࡓࡾ㸪༑ศ࡛࠶ࡿࡁࢱ࣮ࢤ ࢵࢺࡢྠᐃࢆㄗࡿࡇ(⤖ྜ㘒ㄗ)ࡀ⏕ࡌࡿ⪃࠼ࡽࢀ࡚࠸ࡿ ࡓࡵ㸪⬻ᦆയᝈ⪅ࡢὀពຊࡢపୗࡀఛ࠼ࡿࠋᚋࡣ⬻ᦆയ㒊 㸪⚄⤒ᚰ⌮Ꮫⓗ≉ᚩ㸪ཧຍ⪅ࡢᖺ㱋ࡢ㐪࠸࡞ࡀὀពࡢ▐ ࡁࡢࡼ࠺ᙳ㡪ࡋ࡚࠸ࡿࡢ᭦࡞ࡿศᯒࢆࡋ࡚࠸ࡁࡓ࠸ࠋ ᅗ 1 RSVP ㄢ㢟ᥦ♧(SOA600ms ࡢ) ̿ 730 ̿
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