Making Memories: The Development of Long-Term Visual Knowledge in Children with Visual Agnosia
There are few reports about the effects of perinatal acquired brain lesions on the development of visual perception. These studies demonstrate nonseverely impaired visual-spatial abilities and preserved visual memory. Longitudinal data analyzing the effects of compromised perceptions on long-term vi...
| Asıl Yazarlar: | , , , , |
|---|---|
| Materyal Türü: | Makale |
| Dil: | English |
| Baskı/Yayın Bilgisi: |
Hindawi Limited
2013-01-01
|
| Seri Bilgileri: | Neural Plasticity |
| Online Erişim: | http://dx.doi.org/10.1155/2013/306432 |
| _version_ | 1827087672397529088 |
|---|---|
| author | Tiziana Metitieri Carmen Barba Simona Pellacani Maria Pia Viggiano Renzo Guerrini |
| author_facet | Tiziana Metitieri Carmen Barba Simona Pellacani Maria Pia Viggiano Renzo Guerrini |
| author_sort | Tiziana Metitieri |
| collection | DOAJ |
| description | There are few reports about the effects of perinatal acquired brain lesions on the development of visual perception. These studies demonstrate nonseverely impaired visual-spatial abilities and preserved visual memory. Longitudinal data analyzing the effects of compromised perceptions on long-term visual knowledge in agnosics are limited to lesions having occurred in adulthood. The study of children with focal lesions of the visual pathways provides a unique opportunity to assess the development of visual memory when perceptual input is degraded. We assessed visual recognition and visual memory in three children with lesions to the visual cortex having occurred in early infancy. We then explored the time course of visual memory impairment in two of them at 2 years and 3.7 years from the initial assessment. All children exhibited apperceptive visual agnosia and visual memory impairment. We observed a longitudinal improvement of visual memory modulated by the structural properties of objects. Our findings indicate that processing of degraded perceptions from birth results in impoverished memories. The dynamic interaction between perception and memory during development might modulate the long-term construction of visual representations, resulting in less severe impairment. |
| first_indexed | 2025-03-20T04:56:26Z |
| format | Article |
| id | doaj.art-d88c91d265ad4ebbbe5fc33e59c47b8c |
| institution | Directory Open Access Journal |
| issn | 2090-5904 1687-5443 |
| language | English |
| last_indexed | 2025-03-20T04:56:26Z |
| publishDate | 2013-01-01 |
| publisher | Hindawi Limited |
| record_format | Article |
| series | Neural Plasticity |
| spelling | doaj.art-d88c91d265ad4ebbbe5fc33e59c47b8c2024-10-03T05:38:36ZengHindawi LimitedNeural Plasticity2090-59041687-54432013-01-01201310.1155/2013/306432306432Making Memories: The Development of Long-Term Visual Knowledge in Children with Visual AgnosiaTiziana Metitieri0Carmen Barba1Simona Pellacani2Maria Pia Viggiano3Renzo Guerrini4Pediatric Neurology Unit, Children’s Hospital A. Meyer, University of Florence, Viale Pieraccini 24, 50139 Firenze, ItalyPediatric Neurology Unit, Children’s Hospital A. Meyer, University of Florence, Viale Pieraccini 24, 50139 Firenze, ItalyIRCCS Stella Maris, Viale del Tirreno 331, Calambrone, 56018 Pisa, ItalyPediatric Neurology Unit, Children’s Hospital A. Meyer, University of Florence, Viale Pieraccini 24, 50139 Firenze, ItalyPediatric Neurology Unit, Children’s Hospital A. Meyer, University of Florence, Viale Pieraccini 24, 50139 Firenze, ItalyThere are few reports about the effects of perinatal acquired brain lesions on the development of visual perception. These studies demonstrate nonseverely impaired visual-spatial abilities and preserved visual memory. Longitudinal data analyzing the effects of compromised perceptions on long-term visual knowledge in agnosics are limited to lesions having occurred in adulthood. The study of children with focal lesions of the visual pathways provides a unique opportunity to assess the development of visual memory when perceptual input is degraded. We assessed visual recognition and visual memory in three children with lesions to the visual cortex having occurred in early infancy. We then explored the time course of visual memory impairment in two of them at 2 years and 3.7 years from the initial assessment. All children exhibited apperceptive visual agnosia and visual memory impairment. We observed a longitudinal improvement of visual memory modulated by the structural properties of objects. Our findings indicate that processing of degraded perceptions from birth results in impoverished memories. The dynamic interaction between perception and memory during development might modulate the long-term construction of visual representations, resulting in less severe impairment.http://dx.doi.org/10.1155/2013/306432 |
| spellingShingle | Tiziana Metitieri Carmen Barba Simona Pellacani Maria Pia Viggiano Renzo Guerrini Making Memories: The Development of Long-Term Visual Knowledge in Children with Visual Agnosia Neural Plasticity |
| title | Making Memories: The Development of Long-Term Visual Knowledge in Children with Visual Agnosia |
| title_full | Making Memories: The Development of Long-Term Visual Knowledge in Children with Visual Agnosia |
| title_fullStr | Making Memories: The Development of Long-Term Visual Knowledge in Children with Visual Agnosia |
| title_full_unstemmed | Making Memories: The Development of Long-Term Visual Knowledge in Children with Visual Agnosia |
| title_short | Making Memories: The Development of Long-Term Visual Knowledge in Children with Visual Agnosia |
| title_sort | making memories the development of long term visual knowledge in children with visual agnosia |
| url | http://dx.doi.org/10.1155/2013/306432 |
| work_keys_str_mv | AT tizianametitieri makingmemoriesthedevelopmentoflongtermvisualknowledgeinchildrenwithvisualagnosia AT carmenbarba makingmemoriesthedevelopmentoflongtermvisualknowledgeinchildrenwithvisualagnosia AT simonapellacani makingmemoriesthedevelopmentoflongtermvisualknowledgeinchildrenwithvisualagnosia AT mariapiaviggiano makingmemoriesthedevelopmentoflongtermvisualknowledgeinchildrenwithvisualagnosia AT renzoguerrini makingmemoriesthedevelopmentoflongtermvisualknowledgeinchildrenwithvisualagnosia |