日心第77回大会 （2013） 9. 認知 3EV-086 ᚰⓗᩘ┤⥺ࡀ✵㛫ⓗὀពཬࡰࡍᙳ㡪 ⏣℈ۑబ ࣭㛵ཱྀ⌮ஂᏊ 㸦 㛵すᏛᏛ㝔ᚰ⌮Ꮫ◊✲⛉࣭ 㛵すᏛ♫Ꮫ㒊㸧 ࣮࣮࢟࣡ࢻ㸸ᚰⓗᩘ┤⥺࣭✵㛫ⓗὀព Influence of mental number line to spatial attention. Daisuke Hamada1, Rikuko Sekiguti2,# 1 ( Graduate School of Psychology, Kansai University., 2Faculty of Sociology, Kansai University) Key Words: Mental number line, spatial attention ┠ ⓗ Dehaena㸦1993㸧ࡣ㸪ᕥྑࡢᡭࡼࡿወഅุ᩿ࡼࡾᕥᡭࡣ ᑠࡉ࠸ᩘ㸦㸸1,2㸧㸪ྑᡭࡣࡁ࠸ᩘ㸦㸸8,9㸧㏿ࡃ ᛂࡍࡿ SNARC ຠᯝࢆ♧ࡋ࡚࠸ࡿࠋࡇࡢຠᯝࡽᩘᴫᛕ✵ 㛫⾲㇟ࡀᑐᛂ࡙ࡅࡽࢀࡓᚰⓗᩘ┤⥺㸦mental number line㸧ࡀ Ꮡᅾࡍࡿᙇࡉࢀ࡚࠸ࡿࠋFischer et al.㸦2003㸧ࡣ㸪ᚰⓗᩘ ┤⥺ࡢ✵㛫ⓗὀពࡢᙳ㡪ࢆ᳨ウࡋ㸪1 ࡸ 2 ࡣᕥࡢὀពࢆ ಁ㐍ࡋ㸪8 ࡸ 9 ࡣྑࡢὀពࢆಁࡍࡇࢆ♧ࡋ࡚࠸ࡿࠋCohen et al.㸦2007㸧ࡣ㸪すὒே࠾࠸࡚ࡣᕥࡽྑࡢ SNARC ຠ ᯝࡀࡳࡽࢀࡿࡢࡣ⣙ 65㸣࡛࠶ࡿሗ࿌ࡋ࡚࠸ࡿࠋࡋࡋ㸪ࡇ ࡢࡼ࠺࡞ᚰⓗᩘ┤⥺ࡢ᪉ྥࡢഴྥᕪࡣ㸪ᚰⓗᩘ┤⥺ࡢ✵㛫ⓗ ὀពࡢᙳ㡪࠺᫂ࡽࡉࢀ࡚࠸࡞࠸ࠋᮏ◊✲࡛ࡣ㸪 ᚰⓗᩘ┤⥺ࡢ✵㛫ⓗὀពࡢᙳ㡪ࢆ᳨ウࡋ㸪ࡉࡽࡑࡢᙳ㡪 ࡣᚰⓗᩘ┤⥺ࡢ᪉ྥࡀᕥࡽྑࡲࡓࡣྑࡽᕥ࡛࠶ࡿ࠸࠺ ಶேᕪ㛵㐃ࡍࡿࢆ᳨ウࡋࡓࠋ ᪉ ἲ ᐇ㦂ཧຍ⪅ Ꮫ⏕࣭Ꮫ㝔⏕ 27 ྡ㸦⏨ 9 ྡ㸪ዪ 18 ྡ㸪ᖹ ᆒᖺ㱋 26 ṓ㸪SD=10.6㸧 ᐇ㦂ㄢ㢟 4 ࡘࡢᩘᏐ㸦1,2,8,9㸧ࡢෆࡢ୍ࡘࢆࣉ่࣒⃭ࣛ ࡋ࡚ᥦ♧ࡋ㸪ḟ≉ᐃࡢ㐜ᘏ㛫㸦250, 500, 750ms㸧ࢆタࡅ㸪 ࡑࡢᚋ⏬㠃ୖࡢᕥྑࡢࡕࡽ୍᪉ࢱ࣮ࢤࢵࢺ่⃭ࢆᥦ♧ ࡋࡓࠋཧຍ⪅ࡣࢱ࣮ࢤࢵࢺ่⃭ᑐࡋ࡚࣮࢟ᢲࡋ࡛ᛂࢆ ồࡵࡓࠋ∦ᡭ࡛ࡢᛂࡀ 240 ヨ⾜࡛㸪ྜィ 480 ヨ⾜࡛࠶ࡗࡓࠋ ⤫ィศᯒ 㸦1㸧⊂❧ኚᩘࡣᩘࡢࡁࡉ㸦௨ୗ digit㸸low 㸦1,2㸧,high㸦8,9㸧㸧×ࢱ࣮ࢤࢵࢺ่⃭ࡢ⨨㸦௨ୗ target㸸 left,right) ×㐜ᘏ㛫㸦௨ୗ delay㸸250,500,750)࡛㸪ࡍ࡚ཧຍ ⪅ෆኚᩘ࡛࠶ࡗࡓࠋᚑᒓኚᩘࡣᖹᆒᛂ㛫㸦msec㸧࡛࠶ࡗ ࡓࠋྛᡭࡢ⦎⩦ヨ⾜㸦4 ヨ⾜㸧➨ 1block㸦30 ヨ⾜㸧ࡢྜィ 68 ヨ⾜ࢆศᯒࢹ࣮ࢱࡽ㝖እࡋ㸪ྛᡭࡢศᕸࢆࡳ࡚እࢀ್ࢆ ๐㝖ࡋࡓࠋ㸦2㸧ྛ᮲௳ࡢᖹᆒ್ࢆࡶ㸪ྑࢱ࣮ࢤࢵࢺᛂ ࡽᕥࢱ࣮ࢤࢵࢺᛂࢆᘬ࠸࡚ dRT㸦differences in RT㸧ࢆಶࠎ ⟬ฟࡋ㸪negative bias ⩌㸦௨ୗ NB ⩌㸧 positive bias㸦௨ ୗ PB ⩌㸧ศࡅ㸪ྛ⩌࡛ྠᵝࡢ 3 せᅉࡢศᩓศᯒࢆ⾜ࡗࡓࠋ ⤖ ᯝ 㸦1㸧యࡢศᩓศᯒࡢ⤖ᯝ㸪digit×target ࡢస⏝ࡀ᭷ព ࡛࠶ࡗࡓ㸦F(1,26)=4.31 p<.05㸧 ࠋ༢⣧ຠᯝࡢ᳨ᐃࡢ⤖ᯝ㸪Low ᩘᏐ࠾࠸࡚㸪 left ࡀ right ࡼࡾࡶ᭷ព㏿ࡗࡓ㸦F(1,52)=4.82, p<.05㸧ࠋ 㸦2㸧NB ⩌ 66.7㸣㸦18 ே㸧࡛ PB ⩌ࡀ 33.3㸣㸦9 ே㸧 ࡛࠶ࡗࡓࠋNB ⩌࠾ࡅࡿศᩓศᯒࡢ⤖ᯝ㸪digit×target ࡢ స⏝ࡀ᭷ព࡛࠶ࡗࡓ㸦F(1,17)=11.20 p<.05㸧 㸦ᅗ 1㸧 ࠋ༢⣧ຠ ᯝࡢ᳨ᐃࡢ⤖ᯝ㸪Left ᛂ࠾࠸࡚㸪low ࡀ high ࡼࡾࡶ᭷ព ㏿ࡃ㸦F(1,34)=6.15, p<.05 㸧 㸪Right ᛂ࠾࠸࡚㸪high ࡀ low ࡼࡾࡶ᭷ព㏿ࡗࡓ㸦F(1,34)=10.67, p<.05㸧 㸦ᅗ 3:NB ⩌㸧ࠋ ୍ ᪉ PB ⩌ ࡣ digit×target ࡢ స ⏝ ࡀ ᭷ ព ࡛ ࠶ ࡗ ࡓ 㸦F(1,8)=8.89 p<.05㸧 㸦ᅗ 2㸧 ࠋ༢⣧ຠᯝࡢ᳨ᐃࡢ⤖ᯝ㸪right ᛂ࠾࠸࡚ low ࡀ high ࡼࡾࡶ᭷ព㏿ࡃ㸦F(1,16)=7.38, p<.05㸧 㸪High ᩘᏐ࠾࠸࡚㸪left ࡀ right ࡼࡾࡶ᭷ព㏿ࡗ ࡓ㸦F(1,16)=5.06, p<.05 㸧 㸦ᅗ 3:PB ⩌㸧 ࠋ ᅗ 1 NB ⩌ࡢྛ delay ࠾ࡅࡿ low high ࡢᖹᆒᛂ㛫 ᅗ 2 PB ⩌ࡢྛ delay ࠾ࡅࡿ ࠾ࡅࡿ low high ࡢᖹᆒᛂ㛫 ᖹᆒᛂ㛫 ᅗ 3 3 NB ⩌ PB ⩌࠾ࡅࡿ ⩌ ࠾ࡅࡿ digittarget ࠾ࡅࡿ digit ࡢ⤖ᯝ㸦* p<.05㸧 ⪃ ᐹ యࡢ⤖ᯝ㸪ᑠࡉ࠸ᩘࡀᕥࡢὀពࢆಁ㐍ࡉࡏࡓࡀ㸪ࡁ ࠸ᩘࡣ᭷ពྑࡢὀពࢆಁࡉ࡞ࡗࡓࠋࡇࢀࡣඛ⾜◊✲ ୍⮴ࡋ࡞࠸⤖ᯝ࡛࠶ࡿࠋ⩌ศࡅࡢ⤖ᯝ㸪SNARC ຠᯝࡢഴྥᕪ ሗ࿌㢮ఝࡢ್ࡀࡳࡽࢀࡓࠋࡉࡽ㸪NB ⩌࡛ࡣᑠࡉ࠸ᩘࡀᕥ ࡢὀព㸪ࡁ࠸ᩘࡀྑࡢὀពࢆಁ㐍ࡉࡏ㸪యࡼࡾࡶヲ ⣽࡞✵㛫ⓗὀពࡢᙳ㡪ࢆ♧ࡋࡓࠋ୍᪉ PB ⩌࡛ࡣᑠࡉ࠸ᩘ ࡀྑࡢὀពࢆಁ㐍ࡉࡏ㸪NB ⩌㏫ࡢഴྥࢆ♧ࡋࡓࠋࡇࢀࡽ ࡢ⤖ᯝࡣ㸪ᚰⓗᩘ┤⥺ࡢ᪉ྥࡀᕥࡽྑࡲࡓࡣྑࡽᕥ࡛࠶ ࡿ࠸࠺ಶேᕪ㛵㐃ࡋ࡚✵㛫ⓗὀពᙳ㡪ࡍࡿࡇࢆ♧ࡍࠋ ᘬ⏝ᩥ⊩ Dehaena, S., Bossini, S., & Giraux, P. (1993) Journal of Experimental Psychology: General, 122, 371-396. Fischer, M. H., Castel ,D. A., Dodd, M. D., & Pratt, J. (2003) Nature Neuroscience, 6, 555-556. Cohen Kadosh, R., & Henik, A. (2007). Trends in Cognition Sciences, 11, 177-184. ― 683 ―
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