Examination of the split fovea theory in a case of pure left hemialexia.

Cogn Neuropsychol

Laboratoire de Psychologie et Neurosciences Cognitive, Université René Descartes/CNRS, Paris, France.

Published: May 2007

To address the extent to which the visual foveal representation is split, we examine the case of a patient, M.B., suffering from a left mesial occipital lesion and presenting a pure left hemialexia and a right hemianopia with a spared area of the macula. Reading performance on tachistoscopically presented four-letter words and pseudowords in the spared area of the right visual field was significantly better than reading performance in the intact left visual field. Reading performance in the spared area of the right visual field was also significantly better than reading performance of stimuli centred on the fovea. Moreover, a length effect was found only in the left half of pseudowords centred on the fovea, but not in the right half (up to five letters). These differences in reading efficiency between the left and right halves of the foveal region militates in favour of the split fovea theory and cannot be explained by the bilateral projection theory.

Download full-text PDF

Source
http://dx.doi.org/10.1080/02643290601161926DOI Listing

Publication Analysis

Top Keywords

reading performance
16
spared area
12
visual field
12
split fovea
8
fovea theory
8
pure left
8
left hemialexia
8
area visual
8
field better
8
better reading
8

Similar Publications

Plant breeding needs to embrace genetic innovations to ensure stability in crop yields under fluctuating climatic conditions. Development of commercial hybrid varieties has proven to be a sustainable and economical alternative to deliver superior yield, quality and resistance with uniformity in a number of food crops. Cytoplasmic male sterility (CMS), a maternally inherited inability to produce functional pollen, facilitates a three-line system for efficient hybrid seed production strategies in crops.

View Article and Find Full Text PDF

Radiofrequency ablation (RFA) is a safe and effective treatment for patients experiencing ventricular and atrial tachyarrhythmias. While complications after RFA are generally rare, the occurrence of coronary artery (CA) injury, albeit infrequent, can have significant clinical implications. Given the proximity of CAs to common ablation sites, understanding the interplay between RFA and CA perfusion pathophysiology is paramount.

View Article and Find Full Text PDF

Exploring the performance of large language models on hepatitis B infection-related questions: A comparative study.

World J Gastroenterol

January 2025

Department of Gastroenterology, Jiangxi Provincial Key Laboratory of Digestive Diseases, Jiangxi Clinical Research Center for Gastroenterology, Digestive Disease Hospital, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang 330006, Jiangxi Province, China.

Background: Patients with hepatitis B virus (HBV) infection require chronic and personalized care to improve outcomes. Large language models (LLMs) can potentially provide medical information for patients.

Aim: To examine the performance of three LLMs, ChatGPT-3.

View Article and Find Full Text PDF

Purpose: To evaluate diagnostic performance of four diagnostic methods for rapid determination of methicillin resistance in S. aureus positive blood cultures (BCs).

Methods: Clinical and spiked BCs were subjected to the evaluation of the following methods and protocols: a.

View Article and Find Full Text PDF

Late Talkers' Language, Metaphor, Theory of Mind, and Reading Skills at 9 Years of Age.

J Speech Lang Hear Res

January 2025

Research Unit of Language and Communication, Department of Rehabilitation Sciences, TU Dortmund University, Germany.

Purpose: Prior work has found that "late talkers" (LTs) as a group continue to demonstrate lower language and reading outcomes compared to their typically developing (TD) peers even into young adulthood. Others identified that children diagnosed with developmental language disorder (DLD) show difficulties later with theory of mind (ToM) tasks and metaphor comprehension, but there is a shortage of research specifically investigating these advanced skills in LTs. The current study therefore compared language-related skills of former LTs with their TD peers at school age.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!