Target processing is facilitated by motivationally relevant cues

The effect that motivationally relevant stimuli have on processes of attentional engagement and disengagement was investigated during two modified peripheral cueing paradigms. Sexual, mutilation, threatening, and neutral stimuli served as peripheral cues in both experiments. Responses were made to target location in Experiment 1 (N = 19 female) and target identity in Experiment 2 (N = 18 female). As indexed by enhanced target-evoked PI and P3b component amplitudes, target processing was facilitated by the presentation of sexual and mutilation stimuli in both experiments. This facilitation in response to targets cued by sexual and mutilation stimuli occurred regardless of whether cueing was valid or invalid as demonstrated by the non-significant cue validity x picture-type interaction. As such, the processes of attentional engagement (as inferred by responses to validly cued targets) and attentional disengagement (as inferred by responses to invalidly cued targets) were not differentially affected by the motivational relevance of the preceding cue. These results indicate that in a non-clinical sample, participants can shift attention rapidly to process information following the onset of motivationally relevant stimuli at attended (valid) and unattended (invalid) locations and that target processing is facilitated by the presence of appetitive and aversive cues. (c) 2007 Elsevier B.V. All rights reserved.