Working together to orient faster: The combined effects of alerting and orienting networks on pupillary responses at 8 months of age
Multiple visual attention mechanisms are active already in infancy, most notably one supporting orienting towards stimuli and another, maintaining appropriate levels of alertness, when exploring the environment. They are thought to depend on separate brain networks, but their effects are difficult t...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2020-04-01
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| Series: | Developmental Cognitive Neuroscience |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1878929320300116 |
| _version_ | 1818043837217505280 |
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| author | David López Pérez Sonia Ramotowska Anna Malinowska-Korczak Maciej Haman Przemysław Tomalski |
| author_facet | David López Pérez Sonia Ramotowska Anna Malinowska-Korczak Maciej Haman Przemysław Tomalski |
| author_sort | David López Pérez |
| collection | DOAJ |
| description | Multiple visual attention mechanisms are active already in infancy, most notably one supporting orienting towards stimuli and another, maintaining appropriate levels of alertness, when exploring the environment. They are thought to depend on separate brain networks, but their effects are difficult to isolate in existing behavioural paradigms. Better understanding of the contribution of each network to individual differences in visual orienting may help to explain their role in attention development. Here, we tested whether alerting and spatial cues differentially modulate pupil dilation in 8-month-old infants in a visual orienting paradigm. We found differential effects in the time course of these responses depending on the cue type. Moreover, using Principal Component Analysis (PCA) we identified two main components of pupillary response, which may reflect the alerting and orienting network activity. In a regression analysis, these components together explained nearly 40 % of variance in saccadic latencies in the spatial cueing condition of the task. These results likely demonstrate that both networks work together in 8-month-old infants and that their activity can be indexed with pupil dilation combined with PCA, but not with raw changes in pupil diameter. |
| first_indexed | 2024-12-10T09:08:33Z |
| format | Article |
| id | doaj.art-5c41149282024c96aad02fda52017fdf |
| institution | Directory Open Access Journal |
| issn | 1878-9293 |
| language | English |
| last_indexed | 2024-12-10T09:08:33Z |
| publishDate | 2020-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Developmental Cognitive Neuroscience |
| spelling | doaj.art-5c41149282024c96aad02fda52017fdf2022-12-22T01:55:04ZengElsevierDevelopmental Cognitive Neuroscience1878-92932020-04-0142Working together to orient faster: The combined effects of alerting and orienting networks on pupillary responses at 8 months of ageDavid López Pérez0Sonia Ramotowska1Anna Malinowska-Korczak2Maciej Haman3Przemysław Tomalski4Institute of Psychology, Polish Academy of Sciences, Warsaw, Poland; Corresponding authors at: Neurocognitive Development Lab, Institute of Psychology, Polish Academy of Sciences, Jaracza 1, 00-378 Warsaw, Poland.Faculty of Psychology, University of Warsaw, Warsaw, Poland; Institute for Logic, Language and Computation, University of Amsterdam, Amsterdam, the NetherlandsInstitute of Psychology, Polish Academy of Sciences, Warsaw, PolandFaculty of Psychology, University of Warsaw, Warsaw, PolandInstitute of Psychology, Polish Academy of Sciences, Warsaw, Poland; Corresponding authors at: Neurocognitive Development Lab, Institute of Psychology, Polish Academy of Sciences, Jaracza 1, 00-378 Warsaw, Poland.Multiple visual attention mechanisms are active already in infancy, most notably one supporting orienting towards stimuli and another, maintaining appropriate levels of alertness, when exploring the environment. They are thought to depend on separate brain networks, but their effects are difficult to isolate in existing behavioural paradigms. Better understanding of the contribution of each network to individual differences in visual orienting may help to explain their role in attention development. Here, we tested whether alerting and spatial cues differentially modulate pupil dilation in 8-month-old infants in a visual orienting paradigm. We found differential effects in the time course of these responses depending on the cue type. Moreover, using Principal Component Analysis (PCA) we identified two main components of pupillary response, which may reflect the alerting and orienting network activity. In a regression analysis, these components together explained nearly 40 % of variance in saccadic latencies in the spatial cueing condition of the task. These results likely demonstrate that both networks work together in 8-month-old infants and that their activity can be indexed with pupil dilation combined with PCA, but not with raw changes in pupil diameter.http://www.sciencedirect.com/science/article/pii/S1878929320300116Visual attentionAlertingOrientingPupillometryPCA |
| spellingShingle | David López Pérez Sonia Ramotowska Anna Malinowska-Korczak Maciej Haman Przemysław Tomalski Working together to orient faster: The combined effects of alerting and orienting networks on pupillary responses at 8 months of age Developmental Cognitive Neuroscience Visual attention Alerting Orienting Pupillometry PCA |
| title | Working together to orient faster: The combined effects of alerting and orienting networks on pupillary responses at 8 months of age |
| title_full | Working together to orient faster: The combined effects of alerting and orienting networks on pupillary responses at 8 months of age |
| title_fullStr | Working together to orient faster: The combined effects of alerting and orienting networks on pupillary responses at 8 months of age |
| title_full_unstemmed | Working together to orient faster: The combined effects of alerting and orienting networks on pupillary responses at 8 months of age |
| title_short | Working together to orient faster: The combined effects of alerting and orienting networks on pupillary responses at 8 months of age |
| title_sort | working together to orient faster the combined effects of alerting and orienting networks on pupillary responses at 8 months of age |
| topic | Visual attention Alerting Orienting Pupillometry PCA |
| url | http://www.sciencedirect.com/science/article/pii/S1878929320300116 |
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