Semantic Typicality Effects in Acquired Dyslexia: Evidence for Semantic Impairment in Deep Dyslexia.

Aphasiology
Ellyn A Riley, Cynthia K Thompson

Abstract

BACKGROUND: Acquired deep dyslexia is characterized by impairment in grapheme-phoneme conversion and production of semantic errors in oral reading. Several theories have attempted to explain the production of semantic errors in deep dyslexia, some proposing that they arise from impairments in both grapheme-phoneme and lexical-semantic processing, and others proposing that such errors stem from a deficit in phonological production. Whereas both views have gained some acceptance, the limited evidence available does not clearly eliminate the possibility that semantic errors arise from a lexical-semantic input processing deficit. AIMS: To investigate semantic processing in deep dyslexia, this study examined the typicality effect in deep dyslexic individuals, phonological dyslexic individuals, and controls using an online category verification paradigm. This task requires explicit semantic access without speech production, focusing observation on semantic processing from written or spoken input. METHODS #ENTITYSTARTX00026; PROCEDURES: To examine the locus of semantic impairment, the task was administered in visual and auditory modalities with reaction time as the primary dependent measure. Nine controls, six phonological dyslexic ...Continue Reading

References

Dec 1, 1979·Journal of Neurology, Neurosurgery, and Psychiatry·M F Beauvois, J Dérouesné
Dec 1, 1979·Journal of Neurology, Neurosurgery, and Psychiatry·J Dérouesné, M F Beauvois
Nov 1, 1978·The Quarterly Journal of Experimental Psychology·K E Patterson
Aug 1, 1977·The Quarterly Journal of Experimental Psychology·E M Saffran, O S Marin
May 1, 1975·The Quarterly Journal of Experimental Psychology·T Shallice, E K Warrington
Sep 1, 1990·Cortex; a Journal Devoted to the Study of the Nervous System and Behavior·G Glosser, R B Friedman
Jul 8, 1980·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·M Coltheart
Jan 1, 1980·Neuropsychologia·E M Saffran
Oct 1, 1980·Journal of Neurology, Neurosurgery, and Psychiatry·T Shallice, A K Coughlan
May 15, 2003·Brain and Language·Swathi Kiran, Cynthia K Thompson
Jan 16, 2007·Environmental Microbiology·Achim Schmalenberger, Michael A Kertesz

❮ Previous
Next ❯

Citations

Mar 17, 2018·American Journal of Alzheimer's Disease and Other Dementias·Ellyn A RileyCynthia K Thompson

❮ Previous
Next ❯

Software Mentioned

FIT
PEIR
Superlab

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.