Related Experiment Video
Updated: May 6, 2026

Lexical Decision Task for Studying Written Word Recognition in Adults with and without Dementia or Mild Cognitive Impairment
Published on: June 25, 2019
An area essential for linking word meanings to word forms: evidence from primary progressive aphasia
D S Race1, K Tsapkini, J Crinion
1Department of Neurology, Johns Hopkins University School of Medicine, 600 N. Wolfe Street, Baltimore, MD 21287, USA.
Abstract:
We investigated the relationship between deficits in naming and areas of focal atrophy in primary progressive aphasia (a neurodegenerative disease that specifically affects language processing). We tested patients, across multiple input modalities, on traditional naming tasks (picture naming) and more complex tasks (sentence completion with a name, naming in response to a question) and obtained high resolution MRI. Across most tasks, error rates were correlated with atrophy in the left middle and posterior inferior temporal gyrus. Overall, this result converges with prior literature suggesting that this region plays a major role in modality independent lexical processing.
More Related Videos
05:38Interaction between Phonological and Semantic Processes in Visual Word Recognition using Electrophysiology
Published on: June 29, 2021
12:49Transcranial Direct Current Stimulation tDCS of Wernicke's and Broca's Areas in Studies of Language Learning and Word Acquisition
Published on: July 13, 2019
Related Concept Videos
Higher Mental Functions of the Brain: Language
Language formation and comprehension take place in the dominant hemisphere. The dominant hemisphere is responsible for understanding the meaning of spoken, written, or sign language, as well as the ability to communicate. For most people, the left hemisphere is the dominant one. The right hemisphere, then, gives tone and emotional context to the...
Association Areas of the Cortex
Prefrontal Association Area: This area is located in the frontal lobe and is involved in planning, decision-making, and moderating social behavior. It connects with primary motor areas,...
Language and Cognition
Components of Language
Lateralization
Language Development
The critical period for language acquisition suggests that the ability to acquire language is at its peak early in life. As people age, this proficiency decreases. Language development begins very...