A visual short-term memory advantage for faces. Curby, K. M. & Gauthier, I. Psychon Bull Rev, 14(4):620–628, 2007.
abstract   bibtex   
What determines how much can be stored in visual short-term memory (VSTM)? Studies of VSTM have focused largely on stimulus-based properties such as the number or complexity of the items stored. Recent work also suggests that capacity is severely reduced for items within the same category. However, the importance for VSTM capacity of more qualitative differences in processing for different categories has not been investigated. For example, faces are processed more holistically than other objects. In Experiments 1 and 2, we show that the processing of faces, objects that are crucial socially and for which we possess considerable expertise, overcomes these limitations. More faces can be stored in VSTM than objects from other complex nonface categories. As in prior studies, at short encoding durations we found that capacity for faces was less than that for other categories. However, at longer encoding durations, capacity for faces exceeded that for nonface objects, and this advantage was specific to upright faces. Because inversion reduces holistic processing, the interaction of orientation with VSTM capacity-which occurred for faces but no t objects in Experiment 3–suggests that it is holistic processing that confers an advantage for face VSTM when sufficient encoding time is allowed.
@Article{Curby2007,
  author      = {Curby, Kim M. and Gauthier, Isabel},
  journal     = {Psychon Bull Rev},
  title       = {A visual short-term memory advantage for faces.},
  year        = {2007},
  number      = {4},
  pages       = {620--628},
  volume      = {14},
  abstract    = {What determines how much can be stored in visual short-term memory
	(VSTM)? Studies of VSTM have focused largely on stimulus-based properties
	such as the number or complexity of the items stored. Recent work
	also suggests that capacity is severely reduced for items within
	the same category. However, the importance for VSTM capacity of more
	qualitative differences in processing for different categories has
	not been investigated. For example, faces are processed more holistically
	than other objects. In Experiments 1 and 2, we show that the processing
	of faces, objects that are crucial socially and for which we possess
	considerable expertise, overcomes these limitations. More faces can
	be stored in VSTM than objects from other complex nonface categories.
	As in prior studies, at short encoding durations we found that capacity
	for faces was less than that for other categories. However, at longer
	encoding durations, capacity for faces exceeded that for nonface
	objects, and this advantage was specific to upright faces. Because
	inversion reduces holistic processing, the interaction of orientation
	with VSTM capacity-which occurred for faces but no t objects in Experiment
	3--suggests that it is holistic processing that confers an advantage
	for face VSTM when sufficient encoding time is allowed.},
  institution = {Department of Psychology, Temple University, Philadelphia, Pennsylvania 19122-6085, USA. kim.curby@temple.edu},
  keywords    = {Adult; Face; Female; Humans; Male; Memory; Visual Perception},
  language    = {eng},
  medline-pst = {ppublish},
  pmid        = {17972723},
  timestamp   = {2013.05.13},
}

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