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Face Orientation and Motion Differently Affect the Deployment of Visual Attention in Newborns and 4-Month-Old Infants
Eloisa Valenza1, Yumiko Otsuka2, Hermann Bulf3
1Dipartimento di Psicologia dello Sviluppo e Socializzazione, Università degli Studi di Padova, Via Venezia 8, 35131, Padova, Italy; Interdepartmental Center for Cognitive Science (CISC), Università di Padova, Via Venezia 8, 35131, Padova.
Insights
Newborns orient visual attention based on motion, while 4-month-olds also use face orientation. This reveals developmental changes in how infants process visual stimuli.
Area of Science:
- Developmental Psychology
- Cognitive Neuroscience
- Infant Vision
Background:
- Orienting visual attention is crucial for selecting information in complex environments.
- Infant visual attention development shows significant gains between birth and 4 months.
- The influence of stimulus characteristics on attention deployment in early infancy is not well understood.
Purpose of the Study:
- To compare newborns' and 4-month-olds' ability to orient visual attention.
- To investigate how stimulus attributes (face orientation, motion) affect attention deployment.
- To understand developmental changes in visual attention orienting.
Main Methods:
- Presented newborns and 4-month-olds with central and peripheral visual stimuli.
- Manipulated stimulus attributes: face orientation and motion.
- Measured valid trials and saccadic latency to assess attention deployment.
Main Results:
- At birth, attention orienting was primarily influenced by stimulus motion.
- At 4 months, attention orienting was influenced by both motion and face orientation.
- Developmental changes indicate increasing sensitivity to specific visual features.
Conclusions:
- Infant visual attention development is characterized by a shift from motion-based to feature-based orienting.
- Maturation alone may not fully explain developmental changes in visual attention.
- Stimulus characteristics play a key role in shaping early visual attention skills.
Abstract:
Orienting visual attention allows us to properly select relevant visual information from a noisy environment. Despite extensive investigation of the orienting of visual attention in infancy, it is unknown whether and how stimulus characteristics modulate the deployment of attention from birth to 4 months of age, a period in which the efficiency in orienting of attention improves dramatically. The aim of the present study was to compare 4-month-old infants' and newborns' ability to orient attention from central to peripheral stimuli that have the same or different attributes. In Experiment 1, all the stimuli were dynamic and the only attribute of the central and peripheral stimuli to be manipulated was face orientation. In Experiment 2, both face orientation and motion of the central and peripheral stimuli were contrasted. The number of valid trials and saccadic latency were measured at both ages. Our results demonstrated that the deployment of attention is mainly influenced by motion at birth, while it is also influenced by face orientation at 4-month of age. These findings provide insight into the development of the orienting visual attention in the first few months of life and suggest that maturation may be not the only factor that determines the developmental change in orienting visual attention from birth to 4 months.
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