Object-based attention operates on perceptual objects, opening the possibility that the costs and benefits humans have to pay to move attention between-objects might be affected by the nature of the stimuli. The current study reported two experiments with adults and 8-month-old infants investigating whether object-based-attention is affected by the type of stimulus (faces vs. non-faces stimuli). Using the well-known cueing task developed by Egly etal. (1994) to study the object-based component of attention, in Experiment 1 adult participants were presented with two upright, inverted or scrambled faces and an eye-tracker measured their saccadic latencies to find a target that could appear on the same object that was just cued or on the other object that was uncued. Data showed that an object-based effect (a smaller cost to shift attention within- compared to between- objects) occurred only with scrambled face, but not with upright or inverted faces. In Experiment 2 the same task was performed with 8-month-old infants, using upright and inverted faces. Data revealed that an object-based effect emerges only for inverted faces but not for upright faces. Overall, these findings suggest that object-based attention is modulated by the type of stimulus and by the experience acquired by the viewer with different objects.
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|Titolo:||How a face may affect object-based attention: Evidence from adults and 8-month-old infants|
|Autori:||Valenza, E.; Franchin, Laura; Bulf, H.|
|Titolo del periodico:||FRONTIERS IN INTEGRATIVE NEUROSCIENCE|
|Anno di pubblicazione:||2014|
|Codice identificativo Scopus:||2-s2.0-84897046839|
|Codice identificativo Pubmed:||24723860|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.3389/fnint.2014.00027|
|Appare nelle tipologie:||03.1 Articolo su rivista (Journal article)|
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