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Timing matters: the impact of label synchrony on infant categorisation.

Althaus N, Plunkett K - Cognition (2015)

Bottom Line: However, analyses of infants' gaze patterns to object parts reveal that even synchronous labels do not hinder learning completely.We conclude that synchronous labels interfere with the familiarisation process, but this process involves shifts in familiarity vs. novelty preference rather than overshadowing of visual learning.Besides offering detailed insight into the effects of labelling on infants' visual attention, these findings offer the potential to reconcile previous contradictory results.

View Article: PubMed Central - PubMed

Affiliation: Department of Experimental Psychology, University of Oxford, United Kingdom. Electronic address: nadja.althaus@psy.ox.ac.uk.

No MeSH data available.


Example familiarisation set.
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f0005: Example familiarisation set.

Mentions: In order to examine the impact of audio-visual synchrony on infant object categorisation, we familiarised three groups of 12-month-olds with exemplars taken from a novel object category, either in silence (Silent condition), with labels presented one second after the picture onset (Asynchronous Label condition), or with labels and pictures having simultaneous onset (Synchronous Label condition). The stimuli were constructed to contain spatially separate object parts (a shell and a leaf), permitting tracking of infants’ attention at the level of parts, as well as whole objects (Fig. 1). Shell parts were more variable than leaf parts. This enabled us to measure infant sensitivity to object feature distributions, and thereby distinguish between ‘overshadowing’ and ‘perceptual load’ interpretations of any interference effects. The difference in variability also meant that the leaves represented a shared feature, resembling a ‘diagnostic’ part that indicates category membership.


Timing matters: the impact of label synchrony on infant categorisation.

Althaus N, Plunkett K - Cognition (2015)

Example familiarisation set.
© Copyright Policy - CC BY
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4400968&req=5

f0005: Example familiarisation set.
Mentions: In order to examine the impact of audio-visual synchrony on infant object categorisation, we familiarised three groups of 12-month-olds with exemplars taken from a novel object category, either in silence (Silent condition), with labels presented one second after the picture onset (Asynchronous Label condition), or with labels and pictures having simultaneous onset (Synchronous Label condition). The stimuli were constructed to contain spatially separate object parts (a shell and a leaf), permitting tracking of infants’ attention at the level of parts, as well as whole objects (Fig. 1). Shell parts were more variable than leaf parts. This enabled us to measure infant sensitivity to object feature distributions, and thereby distinguish between ‘overshadowing’ and ‘perceptual load’ interpretations of any interference effects. The difference in variability also meant that the leaves represented a shared feature, resembling a ‘diagnostic’ part that indicates category membership.

Bottom Line: However, analyses of infants' gaze patterns to object parts reveal that even synchronous labels do not hinder learning completely.We conclude that synchronous labels interfere with the familiarisation process, but this process involves shifts in familiarity vs. novelty preference rather than overshadowing of visual learning.Besides offering detailed insight into the effects of labelling on infants' visual attention, these findings offer the potential to reconcile previous contradictory results.

View Article: PubMed Central - PubMed

Affiliation: Department of Experimental Psychology, University of Oxford, United Kingdom. Electronic address: nadja.althaus@psy.ox.ac.uk.

No MeSH data available.