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Apa Manual 6th Edition

Better Essays

~ Sixth Edition

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A merican Psychological Association • Washington, D C

Copyright © 2 010 by the American Psychological Association. All rights reserved. Except as permitted under the United States Copyright Act o f 1 976, no part o f this publication may be reproduced or distributed in any form or by any means, including, but not limited to, the process o f scanning and digitization, or stored in a database or retrieval system, without the prior written permission o f

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••••• were ' 2rSD from each participant 's mean (approximately 1.5% o f responses). Median RTs were

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five categories o f targets to a 2 x 5 (Age (young, old] x Target Category [positive high arousal,

4 • •••••••••••••••••.•.•.••••.••••••.~~m~~\~, 4A~;j category. RTs for error trials were excluded (fewer than 5%"of all responses) as were RTs that li,hJmh~r"s; :

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The results described above suggested that there was no influence o f age on the

was from a different emotional category from the dislraclor (e.g., RTs were not included for

are both positive low arousal items). RTs were analyzcd for 2 4 trials o f e ach target emotion

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influences o f emotion. T o further test the validity o f this hypothesis, w e submitted the RTs to the

arrays containing eight images o f a cat and one image o f a butterfly because cats and butterflies

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,,,,Oldl; 1,24 '.

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effects on detection time appeared stable in young and older adults.

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Analyses focus on participants ' RTs 10 the 120 trials in which a target was present and

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revealed only a main effect o f age but no interactions with age. Thus, the arousal-mediated

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Results

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Running head: E FFECfS O F A GE ON D ElECfION O F EMOTION

software. Before beginning the actual task, participants perfonned 2 0 practice

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