Journal of Abnormal Psychology 2000. 109, No. 3, 373-385 Copyright 2000 by the American Psychological Association, Inc. 0021-843X/00/$5.00...

I need help understanding the result section and what the results they found in this experiement means. For example, "Picture valence effects. Startle blink responses were generallysmaller at earlier probe times, F(2, 33) = 23.33: 300 versus 800ms, F(l, 34) = 9.97, and 800 ms versus late interval, F(l,34) = 2230. This overall "picture prepulse" effect (Bradley et al.,1993) did not vary with group, F < 1. However, groups did differin their patterns of valence modulation across the three probeintervals, Group X Valence x Time F(4. 31) = 5.93, rf - .43."What are these results saying?