To approach or to avoid : neurobiological mechanisms in social anxiety Peer, J.M. van
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(2) Chapter 5. Psychophysiological evidence for cortisol-induced reduction in early bias for implicit social threat in social phobia. ǡ ǡ ǣͳͲǤͳͲͳȀǤǤʹͲͲͻǤͲͻǤͲͳʹ ǤǤǡǤƬǤ.
(3) Chapter5. Abstract Ǥ ǡ ȋȌǡ Ǥ ǡ Ǥ
(4) Ǧ ȋȌ Ǧ ȋ Ȍ ǡ Ǥ ǦǡǦ ȋͷͲȌ ǡ Ǥ ʹ ǡ Ǥ ǡ ʹ Ǥ ǡ Ǥ ǡ ǡ ȋǦǦ Ȍ Ǥ . ͺͺ.
(5) Cortisolreducesearlythreatbiasinsocialphobia. Introduction ȋǡ Ȍ Ǥ ǦǡǦ ȋǤǤǡƬǡͳͻͻͷǢƬ ǡʹͲͲǢƬ ǡͳͻͻǢ Ƭ ǡʹͲͲͺȌǤǡǡ Ǥ
(6) ǡǦ ȋȌ Ǥ
(7) ǡ ȋǤǤǡ Ǥǡ ʹͲͲʹǢ Ƭ ǡ ʹͲͲǢ Ǥǡ ʹͲͲͻȌǤ ǡ Ǥǡ Ǥ ȋǤǤǡǦ ǤǡʹͲͲǢƬ ǡʹͲͲȌǡ Ǥ towards ȋ Ȍ ǡ ȋȌ Ǧ Ǥ ȋǤǤǡ ǡ ǡ Ƭ ǡ ʹͲͲʹǢ ǡ ǡ Ƭ ǡ ͳͻͻ͵Ǣ ǡ ǡƬǡʹͲͲ͵Ȍ Ǧ ȋǤǤǡƬǡ ͳͻͻͶǢ Ǧ ǡ ǡƬǡͳͻͻͻǢƬǡʹͲͲʹǢǤǡʹͲͲͶǢ ǡ ǡ ǡ ǡ Ƭ ǡ ʹͲͲ͵ȌǤ ǡ ǡ awayȋ Ȍ ǡ Ǥȋǡ ǡƬ ǡ ʹͲͲͶȌ Ǧ ȋǤǤǡ ǡ ǡ ǡƬǡʹͲͲʹǢǤǡͳͻͻͻȌǤ . ͺͻ.
(8) Chapter5. ȋǤǤǡ Ǥ ǦȌ ȋǤ ȌȋǦ ǤǡʹͲͲǢƬ ǡ ʹͲͲȌǡ ǡ Ǥ Ǧ ȋ Ǥǡ ͳͻͻǢ Ƭ ʹͲͲʹȌǡ ǡ Ǥ ȋ Ǥǡ ͳͻͻͺǢ Ǥǡ ʹͲͲͶȌǡ Ǥ
(9) ǡǦȋȌ ȋȌ ȋ Ȍ ǡ Ǥ ǡ Ǥ ȋǤǤǡ δ ʹͷͲ Ǧ Ȍ Ǧ ȋ Ǥǡ ʹͲͲͶǢ Ǧ Ǥǡ ʹͲͲͷǢ Ǥǡ ʹͲͲ͵Ǣ Ƭ ǡ ʹͲͲʹǢ ǤǡʹͲͲȌǡ ȋƬ ǡʹͲͲʹǢ ǤǡʹͲͲͶǢǤǡʹͲͲȌǤ ǡ Ǥ
(10) ǤȋƬǡʹͲͲǢǤǡʹͲͲǡʹͲͲͻȌ Ǥ ȋǤǡʹͲͲǡʹͲͲͻȌ Ǥ ȋ Ƭ ǡ ʹͲͲȌ ǡ Ǧ ͳͲǡ ȋǤǤǡ ȌǤǦ ǤȋʹͲͲȌǡ . ͻͲ.
(11) Cortisolreducesearlythreatbiasinsocialphobia. Ǧǡ Ǥ ǡ ȋ Ƭ ǡ ʹͲͲǢ Ǥǡ ʹͲͲȌ Ǧ ȋ ǤǡʹͲͲͺȌǡ ȋǦ ǤǡʹͲͲͷȌǤǡ Ǧ Ǥ ǡ Ǥ Ǥ ȋǤǤǡ Ǥǡ ͳͻͻͺǢ Ǥǡ ʹͲͲͷǡʹͲͲͻǢǤǡʹͲͲͲǢ ǤǡͳͻͻͺǡʹͲͲͲǢǤǡʹͲͲȌǡ Ǧ ȋ Ǥǡ ʹͲͲͻȌǤ ǡ ǡ Ǧ Ǧ ȋǤǤǡ De Quervain & Margraf, 2008; ǤǡʹͲͲȌǤ ǡ Ǧ Ǥ ǡ ǡ ǡ ȋ Ǥǡ ʹͲͲǢ Ǥǡ ʹͲͲǢǡ ǡ ǡ Ƭ ǡ ʹͲͲͻȌǤ
(12) ǡ implicitȋǦȌ Ǥ .
(13) Ǧ. ǡ ȋȌ ȋȌ Ǥ ǡǦ Ǥ Ǧ ȋǤǤǡ Ǥǡ ͳͻͻȌ ȋǤǤǡǦ ǤǡʹͲͲͷǢ ǤǡʹͲͲͺȌ . ͻͳ.
(14) Chapter5. Ǥ Ǧ ǡ ȋ Ǥǡ ʹͲͲͶȌǤ ǡ ǡ ǡ Ǥ. Methods Participants Ǥ ͷǤͳǤ Ǥ
(15) ǣ ȋ Ǧ
(16) Ȍ εͲ ȋǡ ͳͻͺȌǡ Ǧǡ ǦǦ ǡͳͺǦͷͷǤ ǡ Ǧǡ ǡ εͷǡ ǡ ǡ ǡ ʹͲ Ǥ ǡ ǡ ǡǡ ǡ Ǥ ǡ Ǥ ͳͺ ǡ ǡͳ ȋǡͳͲȌǤ
(17) Ǧ
(18)
(19) ȋ
(20) Ǧ
(21) ǣ Ǥǡ ͳͻͻȌ Ǥ . ͻʹ.
(22) Cortisolreducesearlythreatbiasinsocialphobia. Table5.1. ȋαͳȌ. ȋȌ
(23)
(24)
(25)
(26) Ǧͳ . M ͵ͳǤͶ ͳʹǤ Ͷ͵Ǥʹ ͵Ǥͷ ͻǤ ͳ͵ʹǤͶ ʹǤͶ ͳͲǤͲ . SD ͳͲǤͲ Ǥͳ Ǥͳ ͳͲǤͺ ͳͷǤͻ ʹͲǤͻ ͳͲǤͲ ʹͳǤ͵ . nαͲ nαͲ. . Note: ȋ ȌǤ
(27) α
(28) ȋͲǦ͵ȌǢ α ȋ ͲǦʹǡ ͲǦʹǡͲǦͳͶͶȌǢ
(29) α
(30) ȋ ͲǦͳͻʹǡͲǦͺǡαǦȌǤ
(31) Ǧ
(32) Ǧ
(33) ȋ
(34) Ǧ
(35) ȌǤ
(36) ǡ ǡ ǡ ǡ Ǧ Ǥ
(37) ǡ ǡ ǡ ǡ Ǥ. .
(38) ȋ
(39) ǣ Ǥǡ ͳͻͺͻȌǡ
(40) ȋ ǤǡͳͻͻȌǤͷǤͳǤ Materialsandprocedure Ǧ ǡǦ Ǥ ȋͷͲ Ȍ ȋ Ȍ Ǥ Ǥǡ ͳʹͳͷǤ ǡ ͳʹ͵Ͳǡͳ Ǥ ǡ ǡ Ǥ ȋ Ȍǡ ȋǤǤǡ ǤǡʹͲͲͻȌǤȋ̱ͳͷȌ ǡ ʹǤͷ Ǥ ǡ Ǧ Ǧ . ͻ͵.
(41) Chapter5. ǡ Ǥ Cortisolandsubjectivemeasures ȋǡ ǡ ȌǤͳͷ ǡ ǦͷȋͲȌǡΪͲȋͳȌǡΪͳʹͲȋʹȌǡΪͳͲȋ͵Ȍ Ǥ ȋ
(42) ǡ ʹͲͳͲǡ Ȍǡ ȋǤǡʹͲͲ͵ȌǤ Ǧ ȋǡ ǡ ǡ ǡ Ȍ ͳͲͲ ȋȌ Ͳǡ ͳǡ ͵Ǥ
(43) ǡ ȋ
(44) Ǧǣǡͳͻͺ͵ȌͲ͵Ǥ EmotionalStrooptask ȋȌǡ ǡ ȋ Ƭ ǡ ͳͻǢ Ǥǡ ͳͻͻͺȌǤ Ǧ Ǥ ǡ ǡ Ǥ ȋ Ǥǡ ͳͻͻͺȌ Ǥ ʹ ȋͺ ͵͵ Ȍȋʹ ͵ ȌǤ Ǧ ȋ ǡ ǤȌǤ Ǥ Ǥ ǡ ʹǤ ͷͲ ǡ ȋͳǤ ǡ ʹ ͳʹͲ Ȍ ǡ Ǥ ǡ ǤǦʹǦͶ Ǥǡ Ǥ ǡ . ͻͶ.
(45) Cortisolreducesearlythreatbiasinsocialphobia. Ǥ ǡ Ͷͺ ȋ Ȍ Ǥ ȋ Ȍ ǡǡ Ǥ Ǧ ǡ ȋͳǤ͵ΨȌ Ǥ δʹͲͲεͳ͵ͲͲ Ǧ ǡ ʹǤͷ ǯ ȋ ȌǤ Ǥ ȋͺͻǤΨȌ Ǥ ǡ ȋ ǡ Ȍ ȋǡ ǡ Ȍ Ǧ Ǥ Electrophysiologicalrecordingandanalyses ȋ Ȍ ͳͻ ͳͲȂʹͲ Ǧ ͵ȀͶǤ ǦǤ Ǧ ȋ Ȍ ǡ Ǥ Ǥ ͷȳǤ ͷͲͲ Ǧ ȋ ǡ ͳǤͲͷǡ ǡͳͻͻͺȂʹͲͲͶȌͳͲͲͲ ǡʹͲͲͺͲͲ Ǥ Ǥ ȋ Ǥǡ ͳͻͺ͵ȌǤ ͲǤͳ ǦȋʹͶȀ ǦȌ͵ͷ ǦȋʹͶ Ȁ ȌǤ ͲǤͷͲ ɊεͳͲͲǡ ±ͷɊǡεͷͲ. ͻͷ.
(46) Chapter5. ρǡ εͳͲͲρǤ ͵Ȁ Ͷ ǦȋȌ ǡ ȋ ǡǡȌ ȋͳǡʹǡͷǡȌ Ǥ ǡ ȋǡ ȌǤ ȋʹǡ ʹ ͵ ǡͳͲǡͳǡʹ Ȍ ǯ Ǥ ʹͲͲǦ ǡ Ǥ ʹ ȋͳͲͲǦʹͷͲ Ȍ ʹȋͳͷǦ͵ͲͲȌǦ ǡ͵ȋʹͷǦͷͲͲ ȌǦ ȋ ǤǡʹͲͲͲȌǤ ͳͲȋͳͳͲǦ ͳͻͲ Ȍ ͷ ǡ ͳ ȋͲ ǦͳͶͲ Ȍ ʹ ȋͳͺͲǦʹͲ Ȍ ͳʹǤ ǡ ǡ ǡ ȋȌ ȋͳͶǤͲǡ
(47) ǤǡͳͻͺͻȂʹͲͲͷȌǤͳ ǡ Ǥ Ǧ ǤͲͷǤ ȋ ȏ²ȐȌǤ Ǧ ȋȏȐȌǤ. Results Cortisolandsubjectivemeasures ȋȀȌ ȋ ͷǤʹȌ Ǥ ǤʹuͶ . ͳ
(48) ǡ . ȋ Ȍ Ǥ ǡ Ǧ Ǥ ǡ Ǥ. ͻ.
(49) Cortisolreducesearlythreatbiasinsocialphobia. Table5.2. ȋȀȌ ȋtαͲȌ. ȋȌ Ǧͷ ΪͲȗȗȗ ΪͳʹͲȗȗȗ Ϊͳͷȗȗȗ. . M ͻǤͻ ͺǤ͵ ǤͶ Ǥ. SD ͵Ǥͷ ʹǤͺ ʹǤ ʹǤͶ. . . M ͻǤͻ ʹͲǤ ʹͲǤͷ ͳͶʹǤ. SD ͵Ǥ ʹͳͳǤͲ ͳͺͻǤ ͳͷǤ. Note:ȗȗȗpδǤͲͲͳ Ǥ Ǥ. ȋ ǡ ȌȋͲǡͳǡʹǡ͵Ȍ ǡFȋͳǡͳͷȌαͳͺǤͶͳǡpαǤͲͲͲǡ²αͲǤͻʹǡ ǡFȋ͵ǡͶͷȌαͶͷǤͲͺǡpαǤͲͲͲǡ²αͲǤͶͷǡ uǡFȋ͵ǡͶͷȌα͵ǤʹǡpαǤͲͲͲǡ²αͲǤͺͳǤ ǦFǦǡ ǡ ȋͲȌǡ FȋͳǡͳͷȌ α ǤͲʹʹǡ p α ǤͺͺȌǡ ȋͳǣFȋͳǡͳͷȌαͳͳǤͷ͵ǡpαǤͲͲͲǡ²αͲǤͺͻǢʹǣFȋͳǡͳͷȌαͳͶͻǤͺǡpαǤͲͲͲǡ²αͲǤͻͳǢ͵ǣ FȋͳǡͳͷȌ α ͳͲǤͶǡ p α ǤͲͲͲǡ ² α ͲǤͺͺȌǤ ʹ͵ȋǤǤǡʹʹǤͷ ȌǤ ȋ Ȍ ȋ ǡ Ȍ u
(50) Ǧ ȋͲǡ ͵Ȍǡ ǡ ǡ ǡ ǡ ȋͲǡͳǡ͵ȌǤ ǡ ȋFȋͳǡͳαͶǤͶʹǡpαǤͲͷʹǡ²αͲǤʹͳǢFδͳǤ͵ǡpεǤʹͳǡ²<ͲǤͳͲȌǤ ȋͲǣFȋͳǡͳȌαͷǤ͵͵ǡpαǤͲ͵ͷǡ² αͲǤʹͷǢ ǣMαͷʹǤͺǡSDαͳǤͶǢ ǣMαͶͲǤǡSDαͳͶǤʹȌǡ ȋͳǣ FȋͳǡͳȌ α ʹǤͷǡ p α Ǥͳ͵ǡ ² α ͲǤͳͶǢ ͵ǣ FȋͳǡͳȌ α ͲǤ͵ͻǡ p α ǤͷͶǡ ² α ͲǤͲʹȌǡ Ǥ Behavioralresults Awarenesscheck tǦ ȋ Ǥ ȌǤ ͻ.
(51) Chapter5. Table5.3.ȋȌ ȋȌǤ. Placebo Cortisol . ͳȋͳʹ͵Ȍ ͷȋͳͲȌ ͲȋͳͳͻȌ Ͷͻȋͳ͵ͳȌ ͵ͻȋͳʹͺȌ ͶͳȋͳͳͻȌ. Ͳʹȋͳ͵ͶȌ ͻͺȋͳͲͷȌ ͲͶȋͳͶ͵Ȍ ͻȋͳͶͲȌ ͶȋͳͶͶȌ ȋͳ͵ͺȌ. ȋǤǡ ʹͲͲȌǤ nαͻαǤ͵͵ǡ Ǧ ȋpδǤͲͷȌ Ͷͳ Ǥͳ ǡ ͶͶ ǡ Ǥ ͳʹ ͵͵ǤͻȋSDαʹǤͻȌǤ Reactiontimes ȋ ǡ Ȍ ȋǡǡȌ Ǧ ǡFδͳǤʹͷǡpεǤʹͺȋ ǡFδͳǤͻǡpεǤͳͻȌǡ ǡFδ͵ǤͳǡpεǤͲͻͲǤͷǤ͵Ǥ ERPresultsmaskedtask:Midlineelectrodes(Fz,Cz,Pz) ͷǤͳ ǡǡǤ P2amplitude ȋ ǡ Ȍǡ ȋǡ ǡ Ȍ ȋ ǡ ǡ Ȍ uʹǡFȋʹǡ͵ʹȌα͵Ǥͻͻǡp αǤͲʹͺǡ²αͲǤʹͲǤ Ǧ ǡFȋʹǡ͵ʹȌαͶǤͺͳǡpαǤͲͳͷǡ² αͲǤʹ͵ǡ ǡFȋʹǡ͵ʹȌαͲǤͺǡpαǤͷʹǤ
(52) ǡ ͻͺ.
(53) Cortisolreducesearlythreatbiasinsocialphobia. a) Masked placebo Fz. b) Masked cortisol. N2. -4. -4. 0. 0. 4. 4. 8 -100. 0. 100. 8. P3. P2 200. 300. 400. 500 -100. 0. 100. 200. 300. 400. 500. Cz Cz -8. -8. -4. -4. 0. 0. 4. 4. 8. 8. -100. 0. 100. 200. 300. 400. 500. Pz. -100. 0. 100. 200. 300. 400. 500. 0. 100. 200. 300. 400. 500 [ms]. [PV]. -4. -4. 0. 0. 4. 4. 8. 8. 12. 12. 16 -100. Angry Neutral Happy. 0. 100. 200. 300. 400. 500. 16 -100. . Figure5.1. ȋ ǡǡȌ ȋȌ ȋȌ Ǥ ʹ ʹ ǡ Ǥ Ǥ. . ʹ ȋȌ ǡFȋͳǡͳȌαǤͻ͵ǡpαǤͲͳʹǡ²αͲǤ͵͵ǡ FȋͳǡͳȌαͶǤͲǡpαǤͲͶͺǡ ² α ͲǤʹʹǡ ǡ FȋͳǡͳȌ α ͲǤͷͻǡpαǤͶȌǤ ʹ ǡFȋͳǡͳȌα͵ǤͺͺǡpαǤͲǡ²αͲǤʹͲǡ . ͻͻ.
(54) Chapter5. ʹǡFȋͳǡͳȌαͳǤͻͳǡpαǤͳͻǡ ǡFȋͳǡͳȌαͲǤͳͷǡpα ǤͳǤ ǡFδʹǤʹǡpεǤͳʹǤu ȋnαͷȌ ǡFȋʹǡʹʹȌα͵ǤͷͳǡpαǤͲͶͺǡ² α ͲǤʹͶǤ ʹ ǡFȋͳǡͳͳȌαͷǤͶʹǡpαǤͲͶͲǡ² αͲǤ͵͵ǡ ǡ FȋͳǡͳͳȌ α ͷǤͳͳǡ p α ǤͲͶͷǡ ² α ͲǤ͵ʹǤ
(55) ǡ ʹ ǡFȋͳǡͳͳȌαǤ͵ͳǡpαǤͲʹͳǡ²αͲǤͶͲǤ N2amplitude ʹ ǡ Fȋʹǡ͵ʹȌα͵ǤͺͳǡpαǤͲͶͺǡ=ͲǤͶǡ² αͲǤͳͻǡ u ǡFȋʹǡ͵ʹȌα͵ǤͻǡpαǤͲʹͻǡ²α ͲǤʹͲǤ
(56) ʹǡ ǡ Fȋʹǡ͵ʹȌ α Ǥͻʹǡ p α ǤͲͲ͵ǡ ² α ͲǤ͵Ͳǡ ǡFȋʹǡ͵ʹȌαͲǤ͵ͶǡpαǤͳǤ
(57) ǡʹ ȋǤǤǡȌ ǡ FȋͳǡͳȌαͺǤͺͷǡpαǤͲͲͻǡ²αͲǤ͵ǡ ǡFȋͳǡͳȌαͳͲǤͳǡpαǤͲͲǡ²αͲǤ͵ͻǤ ʹ ǡ FȋͳǡͳȌαͲǤͲ͵ǡpαǤͺǤ ʹ ǡFȋͳǡͳȌαͳͶǤ͵ͺǡpαǤͲͲʹǡ²αͲǤͶǡ ʹ ǡ FȋͳǡͳȌ α ͲǤͳͶǡ p α ǤͳȌ ǡ FȋͳǡͳȌ α ͲǤͳǡ p α ǤͻǤ ǡ F δ ͵Ǥͳǡ p ε ǤͲǤ u ȋn αͷȌ ǡ FȋʹǡʹʹȌ α ͷǤͳʹǡ p α ǤͲͳͷǡ ² α ͲǤ͵ʹǤ ʹ ȋǤǤǡȌ ǡFȋͳǡͳͳȌαͻǤʹʹǡpαǤͲͳͳǡ²αͲǤͶǡ ǡFȋͳǡͳͳȌαͳͲǤͲͺǡpαǤͲͲͻǡ²αͲǤͶͺǡ ʹ ǡFȋͳǡͳͳȌαͳͷǤǡpαǤͲͲʹǡ²α ͲǤͷͻǤ ͳͲͲ.
(58) Cortisolreducesearlythreatbiasinsocialphobia Table 5.4. ȋ Ȍ ȋɊȌ ǡǤ Midline ʹ ͳͲǤͳȋͳǤͶȌ ͺǤͲȋͳǤͶȌ ͺǤͶȋͳǤ͵Ȍ ͳͶǤͳȋͳǤͳȌ ͳͳǤ͵ȋͳʹǤ͵Ȍ ͳʹǤ͵ȋͳǤ͵Ȍ ͺǤʹȋͳǤʹȌ ͻǤͲȋͳǤ͵Ȍ ͺǤͺȋͳǤ͵Ȍ ͳ͵ǤʹȋͳǤʹȌ ͳʹǤͷȋͳǤͶȌ ͳʹǤͷȋͳǤͶȌ ʹ ǦͲǤͻȋͳǤ͵Ȍ Ǧ͵ǤͷȋͳǤ͵Ȍ Ǧ͵ǤͶȋͳǤͷȌ ʹǤȋͳǤͷȌ ͲǤͺȋͳǤȌ ͲǤͳȋͳǤȌ Ǧ͵ǤȋͳǤ͵Ȍ Ǧ͵ǤʹȋͳǤʹȌ Ǧ͵ǤͺȋͳǤʹȌ ͳǤʹȋͳǤͷȌ ͲǤͳȋͳǤͶȌ ͲǤͺȋͳǤͶȌ ͵ ͳͳǤͺȋͳǤȌ ͳͲǤͷȋͳǤͷȌ ͳͲǤȋͳǤ͵Ȍ ͳͶǤʹȋͳǤͺȌ ͳʹǤͷȋͳǤͶȌ ͳͶǤ͵ȋͳǤȌ ͺǤͻȋͳǤͲȌ ͳͲǤ͵ȋͳǤͶȌ ͳͲǤʹȋͳǤ͵Ȍ ͳʹǤͲȋͳǤͶȌ ͳͳǤȋͳǤͷȌ ͳʹǤͲȋͳǤͶȌ Occipitotemporal ͳͲ Ǧ͵ǤͲȋͳǤͲȌ ǦͶǤͲȋͳǤͲȌ Ǧ͵ǤͷȋͲǤͻȌ ǦͺǤͷȋͳǤȌ ǦͺǤȋͳǤͳȌ ǦͻǤͳȋͳǤͶȌ Ǧ͵Ǥ͵ȋͳǤͲȌ ǦʹǤͻȋͳǤͳȌ Ǧ͵ǤȋͳǤͲȌ ǦͺǤͳȋͳǤ͵Ȍ ǦǤȋͳǤʹȌ ǦͺǤʹȋͳǤʹȌ ͳ ǤͶȋͳǤȌ ǤͲȋͳǤȌ ǤȋͳǤͺȌ ǤͶȋͳǤͷȌ ǤͶȋͳǤȌ ǤͻȋͳǤȌ ͺǤͳȋͳǤͻȌ ͺǤͳȋͳǤȌ ͺǤͻȋͳǤȌ ǤȋͳǤͷȌ ǤͷȋͳǤͺȌ ǤͶȋͳǤȌ ʹ ͳǤȋʹǤͳȌ ͳͷǤȋͳǤͺȌ ͳǤͲȋͳǤͻȌ ͳ͵ǤͷȋͳǤȌ ͳͶǤͲȋͳǤȌ ͳ͵Ǥ͵ȋͳǤȌ ͳǤͷȋͳǤͺȌ ͳǤʹȋͳǤͻȌ ͳǤ͵ȋͳǤȌ ͳ͵ǤͶȋͳǤȌ ͳͶǤͲȋͳǤȌ ͳʹǤͺȋͳǤȌ Note: ȀȀ Ǣ ǦǣͳͲͷȀ ǢͳʹͳȀʹ . P3amplitude
(59) ʹ ʹ ǡ ͵ ǡFȋʹǡ͵ʹȌαͲǤͲͳǡpαǤͻͻǡuǡFȋʹǡ͵ʹȌα ʹǤ͵Ͷǡ p α ǤͳͳǤ ǡ ǡFδ͵ǤͺǡpεǤͲͷǤ Occipitotemporalelectrodes(T5,T6,O1,O2) ͳͲ ȋͷǡȌǡFδ͵ǤʹǡpεǤͲͷǡ ʹȋͳǡʹȌǡFδ ʹǤ͵ǡpεǤͳʹǡǤ ͳ u ǡ Fȋʹǡ͵ʹȌ α Ǥͺͻǡ p α ǤͲͲ͵ǡ ² α ͲǤ͵Ͳǡ ʹǡFȋʹǡ͵ʹȌα͵ǤͺͻǡpαǤͲ͵ͳǡ²αͲǤʹͲǡ ǡFȋʹǡʹʹȌαʹǤ͵ʹǡpαǤͳʹǤ ǡFδ͵ǤǡpεǤͲǤͷǤͶǤ ERPresultsunmaskedtask:Midlineelectrodes(Fz,Cz,Pz) ͷǤͶ Ǧ Ǥ ͳͲͳ.
(60) Chapter5. P2amplitude
(61) ǡ u ʹ ǡFȋʹǡ͵ʹȌ αͳǤͺͷǡpαǤͳǤ ǡFȋʹǡ͵ʹȌαͷǤ͵ʹǡpαǤͲͳͲǡ ²αͲǤʹͷǤ ǦFǦʹ ǡFȋͳǡͳȌαͳʹǤͻͶǡpαǤͲͲʹǡ²αͲǤͶͷǡ ǡFȋͳǡͳȌα͵Ǥͻͷǡpα ǤͲͶǡ ² αͲǤʹͲǤ ʹ ǡ FȋͳǡͳȌ α ͲǤͻͷǡ p α Ǥ͵ͶǤ ǡFδͳǤʹǡpεǤ͵ͶǤ N2amplitude ʹ u ǡ FȋͶǡͶȌ α ǤͲͻǡ p α ǤͲͲͳǡ α ͲǤʹǡ ² α ͲǤ͵ͳǤ Ǧ FǦ ǡ Fȋʹǡ͵ʹȌ α ǤͲͷǡ p αǤͲͲǡ ² α ͲǤʹǡ ǡ FȋͳǡͳȌ α ͳͳǤʹͶǡ p α ǤͲͲͶǡ ² α ͲǤͶͳǡ ǡFȋͳǡͳȌα͵Ǥ͵ǡpαǤͲͷǡ²αͲǤʹǤ Ǥ ǡ Fδ͵ǤʹǡpεǤͲͷǤ P3amplitude
(62) ǡ ͵ ǡFδͳǤͻǡpεǤͳͺǤ Occipitotemporalelectrodes(T5,T6,O1,O2)
(63) ǡ ͳͲȋͷǡȌǡFδͶǤͶǡpεǤͲͷǡ ʹȋͳǡʹȌǡFδʹǤʹǡpεǤͳǤ ͳ ǡFδʹǤʹͷǡpεͳʹǤ . ͳͲʹ.
(64) Cortisolreducesearlythreatbiasinsocialphobia. SPAI- difference scale. 125. 100. 75. 50. 25. R = 0.52, p = .03. 0 -5. 0. 5. 10. P2 amplitude Masked angry placebo - cortisol. 15. . Figure 5.2. ȋ
(65) Ȍ Ǧ ʹ ȋǤǤǡʹ Ȃ ȌǤ Ǧ ʹ ȋ ǡǡȌ ǡ Ǥ Ǧ ʹ ǡ ȋ Ȍ Ǥ Noteǣ ȋ ȌǤ RαͲǤͷǡpαǤͲʹͶǡ ȋʹαͺǤͶǡpαǤͲʹȌǤ . Relationshipbetweenthreatprocessingandsocialanxiety ȋ ȌȋǦ Ǥǡ ʹͲͲͷǢƬǡʹͲͲȌǡ ȋ ǤǡʹͲͲͻȌ Ǥ ȋǣ Ǥ, 2001Ȍ Ǥ Ǧ Ǥ ʹ . ͳͲ͵.
(66) Chapter5. ǡ
(67) ǡ FȋͳǡͳͷȌαͷǤ͵ǡpαǤͲ͵ͳǡ²αͲǤʹǤ
(68) Ǧ ʹ ȋǤǤǡ ʹ Ǧ Ȍ ȋR α ͲǤͷʹǡ p α ǤͲ͵ͳȌǡ ʹ ȋ ͷǤʹȌǤ
(69) ǡ ȋRαͲǤ͵͵ǡpαǤʹͲȌǤ Ǥ. Discussion ǡ Ǥ Ǧ Ǥ EarlyprocessingadvantageforangryfacesinSAD ǡ ǡ ȋȌʹ ǡ Ǥ Ǧʹ ǡ Ǥ
(70) Ǧ ȋǤǤǡ Ȍ ǡ ȋƬ ǡʹͲͲʹǢ ǤǡʹͲͲ͵ǢǦ ǤǡʹͲͲͷǢǤǡʹͲͲȌǤ ǡ . ͳͲͶ.
(71) Cortisolreducesearlythreatbiasinsocialphobia. Ǥ ȋǦ ǤǡʹͲͲǢƬ ʹͲͲ Ȍǡ ȋǤǤǡǤǡͳͻͻǢǤǡͳͻͻͺǢƬ ǡ ʹͲͲʹȌǤ ȋ Ȍ ǡ Ǧ ȋ Ȍ Ǥ
(72) ǡǦ ǤȋʹͲͲͷȌ ʹ ǡ ȋ Ǥ Ǥǡ ʹͲͲͺǢ Ǥǡ ʹͲͲͺȌǤ
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