title: How attentional systems process conflicting cues. The superiority of social over symbolic orienting revisited.
abstract: We investigated orienting of attention by social and symbolic cues presented inside/outside the locus of attention. Participants responded to laterally presented targets preceded by simultaneously presented gaze and arrow cues. Participants' attention was allocated to either of the cues and the other cue served as a distractor. In Experiments 1-4 nonpredictive cues were employed. The validity of the attended cue and distractor were varied orthogonally. Valid cues and distractors produced additive facilitation to reaction times when compared to invalid cues and distractors. The effects of gaze and arrow distractors were similar. When the cue was 100% valid and the distractor 50% valid (Experiment 5), distractor validity had no effect on reaction times. When realistic gaze and arrow cues were employed (Experiment 6), arrow but not gaze distractors influenced the reaction times. The results suggest that social and symbolic directional information can be integrated for attention orienting. The processing of social and symbolic directional information can be modulated by top-down control, but the efficiency of the control depends on the visual saliency of the cues.
authors.affiliation: Human Information Processing Laboratory, Department of Psychology, FIN-33014, University of Tampere, Tampere, Finland. lauri.nummenmaa@uta.fi
authors.forename: Lauri
authors.initials: L
authors.lastname: Nummenmaa
authors.forename: Jari K
authors.initials: JK
authors.lastname: Hietanen
mesh_terms: D000328:Adult; D001288:Attention / Q000502:physiology; D003220:Conflict, Psychological; D003463:Cues; D005260:Female; D005403:Fixation, Ocular / Q000502:physiology; D006801:Humans; D008297:Male; D009949:Orientation / Q000502:physiology; D010775:Photic Stimulation; D011597:Psychomotor Performance / Q000502:physiology; D011930:Reaction Time / Q000502:physiology; D012938:Social Perception; D014796:Visual Perception / Q000502:physiology