Skip to main content
. Author manuscript; available in PMC: 2012 Sep 1.
Published in final edited form as: Neurobiol Aging. 2009 Nov 13;32(9):1634–1650. doi: 10.1016/j.neurobiolaging.2009.10.007

Figure 1.

Figure 1

Examples of stimuli used in this block design experiment. A series of pictures began with 10 cross-hair control trials (20 seconds) followed by 40 affective pictures (80 seconds) all of a single valence category (e.g. negative) and ended with 10 cross-hair control trials. This sequence was repeated until pictures of all three valence categories (negative, positive, and neutral) occurred. Each picture was presented for 1500ms.