Differential effects of word length and visual contrast in the fusiform and lingual gyri during
Open accessAbstract
Previous studies have shown differential responses in the fusiform and lingual gyri during reading and suggested that the former is engaged in processing local features of visual stimuli and the latter is engaged in global shape processing. We used positron emission tomography in order to investigate how these regions are modulated by two common variables in reading: word length (three, six and nine letters) and perceptive similarity to the background (high and low contrast). Increasing both word length and visual contrast had a positive monotonic effect on activation in the bilateral fusiform. However, in the lingual gyrus, activation increased with increasing word length but decreased with increasing contrast. On the basis of previous studies, we suggest that (i) increasing word length increases the demands on both local feature and global shape processing, but (ii) increasing visual contrast increases the demands on local feature processing while decreasing the demands on global shape processing.
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The lingual gyrus, a component of the visual cortex underlying word identification and recognition, has also been implicated in irritability and impulsive aggression in subclinical samples.
“The lingual gyrus, a component of the visual cortex underlying word identification and recognition, has also been implicated in irritability and impulsive aggression in subclinical samples”
From Overlapping and differential neuropharmacological mechanisms of stimulants and nonstimulants for attention-deficit/hyperactivity disorder: A comparative neuroimaging analysis (2024) · cites this paper as Mechelli, Humphreys, Mayall, Olson, & Price, 2000
Medication responses in the lingual gyrus may reflect symptom amelioration of disruptive behavior within the domain of cognitive control.
“Thus, medication responses in the lingual gyrus may reflect symptom amelioration of disruptive behavior within the domain of cognitive control.”
From Overlapping and differential neuropharmacological mechanisms of stimulants and nonstimulants for attention-deficit/hyperactivity disorder: A comparative neuroimaging analysis (2024) · cites this paper as Mechelli, Humphreys, Mayall, Olson, & Price, 2000
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- Authors
- Mechelli, A., Humphreys, G. W., Mayall, K., Olson, A., & Price, C. J.
- Affiliations
- National Hospital for Neurology and Neurosurgery (GB)
- University of Birmingham (GB)
- University of Leicester (GB)
- Corresponding author
- Mechelli, Andrea
- Price, Cathy J.
- Venue
- Proceedings of the Royal Society of London. Series B: Biological Sciences
- Publisher
- The Royal Society
- Published
- 2000-09-22
- Volume
- 267
- Issue
- 1455
- Pages
- 1909-1913
- ISSN
- 0080-4649 (ISSN-L)
- 0962-8452
- 1471-2954
- PMC
- PMC1690747
- OpenAlex
- W2216515421
- Cited by
- 257
- References
- 1
- Citations by year
- 2026: 6 · 2025: 10 · 2024: 20 · 2023: 17 · 2022: 21 · 2021: 29 · 2020: 19 · 2019: 18 · 2018: 18 · 2017: 9 · 2016: 19 · 2015: 16 · 2014: 11 · 2013: 8 · 2012: 6
- FWCI
- 4.02
- Type
- journal article
- Language
- en
- Open access
- green
- europepmc.org
- Locations
- Proceedings of the Royal Society B Biological Sciences (publishedVersion)
- Europe PMC (PubMed Central) (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- UCL Discovery (University College London) (submittedVersion)
- Research Portal (King's College London) (submittedVersion)
- University of Birmingham Research Portal (University of Birmingham) (submittedVersion)
- Funders
- Wellcome Trust (051067)
- Topics
- Social Sciences › Psychology › Developmental and Educational Psychology › Reading and Literacy Development
- Life Sciences › Neuroscience › Cognitive Neuroscience › Neurobiology of Language and Bilingualism
- Life Sciences › Neuroscience › Cognitive Neuroscience › Visual perception and processing mechanisms
- Keywords
- word length, visual contrast, fusiform gyrus, lingual gyrus, reading, visual word recognition, brain activation
- MeSH terms
- Brain Mapping, Humans, Male, Pattern Recognition, Visual, Reading, Tomography, Emission-Computed, Visual Cortex, Contrast Sensitivity
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