Dyslexia and the failure to form a perceptual anchor
Abstract
In a large subgroup of dyslexic individuals (D-LDs), reading difficulties are part of a broader learning and language disability. Recent studies indicate that D-LDs perform poorly in many psychoacoustic tasks compared with individuals with normal reading ability. We found that D-LDs perform as well as normal readers in speech perception in noise and in a difficult tone comparison task. However, their performance did not improve when these same tasks were performed with a smaller stimulus set. In contrast to normal readers, they did not benefit from stimulus-specific repetitions, suggesting that they have difficulties forming perceptual anchors. These findings are inconsistent with previously suggested static models of dyslexia. Instead, we propose that D-LDs' core deficit is a general difficulty in dynamically constructing stimulus-specific predictions, deriving from deficient stimulus-specific adaptation mechanisms. This hypothesis provides a direct link between D-LDs' high-level difficulties and mechanisms at the level of specific neuronal circuits.
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Changes in the S1 representational territory are strongly related to nursing experience as they are absent in postpartum rats whose litters have been removed on the day of birth.
“Changes in the S1 representational territory are strongly related to nursing experience as it is absent in postpartum rats (Fig. 1A, ‘Non-lactating’) whose litters have been removed on the day of birth”
From Neuromodulation of maternal circuits by oxytocin (2019) · cites this paper as Xerri et al., 1994
The expansion of the ventrum representation is displayed by a two-fold increase of the area representing the nipples and areolae.
“This is displayed by a two-fold increase of the area representing the nipples and areolae”
From Neuromodulation of maternal circuits by oxytocin (2019) · cites this paper as Xerri et al., 1994
Long-lasting plasticity in somatosensory and auditory cortex contributes to increased responsiveness to infant cues.
“long-lasting plasticity in somatosensory (Rosselet et al., 2006; Xerri et al., 1994) and auditory (Cohen et al., 2011; Cohen and Mizrahi, 2015; Liu et al., 2006; Liu and Schreiner, 2007; Marlin et al., 2015; Shepard et al., 2016; Tasaka et al., 2018) cortex have recently been shown to contribute to increased responsiveness to infant cues”
From Neuromodulation of maternal circuits by oxytocin (2019) · cites this paper as Xerri et al., 1994
In the primary area of the somatosensory cortex, the representation of the ventrum is expanded in primiparous lactating rats compared to virgins.
“In the primary area of the somatosensory cortex (S1), the representation of the ventrum is expanded in primiparous lactating rats compared to virgins”
From Neuromodulation of maternal circuits by oxytocin (2019) · cites this paper as Xerri et al., 1994
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References 51 · Cited by 245
- Authors
- Ahissar, M., Lubin, Y., Putter-Katz, H., & Banai, K.
- Affiliations
- Hebrew University of Jerusalem (IL)
- Northwestern University (US)
- Corresponding author
- Ahissar, Merav
- Venue
- Nature Neuroscience
- Published
- 2006-11-19
- Volume
- 9
- Issue
- 12
- Pages
- 1558-1564
- ISSN
- 1097-6256 (ISSN-L)
- 1546-1726
- OpenAlex
- W1988631043
- Cited by
- 245
- References
- 51
- Citations by year
- 2026: 10 · 2025: 8 · 2024: 13 · 2023: 10 · 2022: 9 · 2021: 10 · 2020: 12 · 2019: 16 · 2018: 18 · 2017: 19 · 2016: 11 · 2015: 8 · 2014: 12 · 2013: 12 · 2012: 19
- FWCI
- 16.98
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- www.springer.com/tdm (tdm)
- Locations
- Nature Neuroscience (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Volkswagen Foundation
- Israel Science Foundation
- Topics
- Social Sciences › Psychology › Developmental and Educational Psychology › Reading and Literacy Development
- Social Sciences › Psychology › Neuropsychology and Physiological Psychology › Developmental and Educational Neuropsychology
- Social Sciences › Psychology › Developmental and Educational Psychology › Language Development and Disorders
- Keywords
- dyslexia, speech perception in noise, stimulus-specific adaptation, learning disabilities, language disorders, dynamic prediction
- MeSH terms
- Adaptation, Psychological, Adolescent, Child, Cognition, Dyslexia, Female, Humans, Learning, Learning Disabilities, Mental Recall, Set, Psychology, Speech Perception
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