title: Finding faces among faces: human faces are located more quickly and accurately than other primate and mammal faces.
abstract: We tested the specificity of human face search efficiency by examining whether there is a broad window of detection for various face-like stimuli-human and animal faces-or whether own-species faces receive greater attentional allocation. We assessed the strength of the own-species face detection bias by testing whether human faces are located more efficiently than other animal faces, when presented among various other species' faces, in heterogeneous 16-, 36-, and 64-item arrays. Across all array sizes, we found that, controlling for distractor type, human faces were located faster and more accurately than primate and mammal faces, and that, controlling for target type, searches were faster when distractors were human faces compared to animal faces, revealing more efficient processing of human faces regardless of their role as targets or distractors (Experiment 1). Critically, these effects remained when searches were for specific species' faces (human, chimpanzee, otter), ruling out a category-level explanation (Experiment 2). Together, these results suggest that human faces may be processed more efficiently than animal faces, both when task-relevant (targets) and task-irrelevant (distractors), even in direct competition with other faces. These results suggest that there is not a broad window of detection for all face-like patterns but that human adults process own-species' faces more efficiently than other species' faces. Such own-species search efficiencies may arise through experience with own-species faces throughout development or may be privileged early in development, due to the evolutionary importance of conspecifics' faces.
authors.affiliation: University of Parma, Parma, Italy, elizabethannsimpson@gmail.com.
authors.forename: Elizabeth A
authors.initials: EA
authors.lastname: Simpson
authors.forename: Zachary
authors.initials: Z
authors.lastname: Buchin
authors.forename: Katie
authors.initials: K
authors.lastname: Werner
authors.forename: Rey
authors.initials: R
authors.lastname: Worrell
authors.forename: Krisztina V
authors.initials: KV
authors.lastname: Jakobsen
mesh_terms: D000293:Adolescent; D000328:Adult; D001288:Attention / Q000502:physiology*; D053483:Eye Movement Measurements; D005145:Face; D005260:Female; D006801:Humans; D008297:Male; D010364:Pattern Recognition, Visual / Q000502:physiology*; D013028:Space Perception / Q000502:physiology*; D055815:Young Adult
references.citation: Cognition. 2012 Oct;125(1):64-79
references.pmid: 22776239
references.citation: Biol Lett. 2006 Jun 22;2(2):217-21
references.pmid: 17148366
references.citation: Exp Psychol. 2014;61(6):439-56
references.pmid: 24962122
references.citation: Behav Processes. 2006 Jul;73(1):107-13
references.pmid: 16690230
references.citation: Psychon Bull Rev. 2014 Dec;21(6):1501-8
references.pmid: 24696390
references.citation: Vision Res. 2005 Jun;45(13):1707-24
references.pmid: 15792845
references.citation: Psychol Rev. 1989 Jul;96(3):433-58
references.pmid: 2756067
references.citation: J Vis. 2003;3(6):440-55
references.pmid: 12901715
references.citation: Psychol Sci. 2010 Sep;21(9):1208-14
references.pmid: 20713637
references.citation: J Vis. 2010 Aug 20;10(10):21
references.pmid: 20884486
references.citation: Cognition. 2008 Apr;107(1):330-42
references.pmid: 17767926
references.citation: Neuroimage. 2011 Feb 1;54(3):2547-55
references.pmid: 20937393
references.citation: Vision Res. 2006 Sep;46(18):3028-35
references.pmid: 16698058
references.citation: J Exp Psychol Gen. 1985 Sep;114(3):285-310
references.pmid: 3161978
references.citation: PLoS One. 2012;7(4):e34598
references.pmid: 22506033
references.citation: Atten Percept Psychophys. 2009 Oct;71(7):1478-86
references.pmid: 19801608
references.citation: J Exp Psychol Hum Percept Perform. 1999 Aug;25(4):1016-35
references.pmid: 10464943
references.citation: Dev Psychobiol. 2014 Jul;56(5):1083-101
references.pmid: 24395087
references.citation: Cogn Sci. 2009 Aug;33(6):1144-56
references.pmid: 21585498
references.citation: J Comp Psychol. 2010 Aug;124(3):233-51
references.pmid: 20695655