Related Experiment Video
Updated: Jul 31, 2026
13:05
Functional Magnetic Resonance Imaging (fMRI) with Auditory Stimulation in Songbirds
Published on: June 3, 2013
FMRI of ventral and dorsal processing streams in basic reading processes: insular sensitivity to phonology
Ron Borowsky1, Jacqueline Cummine, William J Owen
1Cognitive Neuroimaging Lab, Department of Psychology, College of Arts and Science, University of Saskatchewan, Saskatoon, Saskatchewan, Canada. ron.borowsky@usask.ca
Brain Topography
|July 18, 2006
Summary
This study supports independent ventral and dorsal reading streams and suggests the insular cortex is sensitive to phonological processing during reading. These findings clarify the neurophysiology of reading and insular cortex involvement.
Area of Science:
- Neuroscience
- Cognitive Science
- Psycholinguistics
Background:
- Current models propose distinct ventral and dorsal cortical streams for reading familiar and unfamiliar words, respectively.
- Divergence exists regarding the involvement of the insular cortex in reading processes.
Purpose of the Study:
- To investigate the roles of the ventral and dorsal reading streams.
- To determine the involvement and function of the insular cortex in reading.
- To clarify the relationship between these neural systems and lexical versus sublexical reading strategies.
Main Methods:
- Functional magnetic resonance imaging (fMRI) was employed.
- Participants read aloud exception words (requiring lexical access) and pseudohomophones (requiring sublexical decoding).
Main Results:
- Findings support the existence of independent ventral-lexical and dorsal-sublexical reading streams.
- The insular cortex showed sensitivity to phonological processing, specifically sublexical spelling-to-sound translation.
Conclusions:
- The study validates distinct neural pathways for lexical and sublexical reading.
- Insular cortex activity is linked to phonological decoding, requiring further investigation and integration into reading models.
Related Concept Videos
01:21Association Areas of the Cortex
Association areas are regions of the cerebral cortex that do not have a specific sensory or motor function. Instead, they integrate and interpret information from various sources to enable higher cognitive processes such as memory, learning, and decision-making. Some key association areas include the following:
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,...
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,...
01:10Higher Mental Functions of the Brain: Language
Language is a system of communication that allows the expression of thoughts, ideas, and feelings. The brain processes language in both hemispheres.
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...
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...
01:28Lateralization
Brain lateralization refers to the division of mental processes and functions between the two hemispheres of the brain, a phenomenon that optimizes neural efficiency and underpins complex abilities in humans. This specialization allows each hemisphere to perform tasks where it has a comparative advantage, facilitating more refined cognitive capabilities across different domains.
01:14Brain Imaging
Brain imaging technologies provide critical insights into both the structure and function of the human brain, enabling medical professionals and researchers to diagnose, study, and treat neurological disorders or psychiatric disorders more effectively.
These technologies include computerized axial tomography (CAT or CT scans), positron-emission tomography (PET scans), magnetic resonance imaging (MRI), functional magnetic resonance imaging (fMRI), and Transcranial Magnetic Stimulation (TMS).
These technologies include computerized axial tomography (CAT or CT scans), positron-emission tomography (PET scans), magnetic resonance imaging (MRI), functional magnetic resonance imaging (fMRI), and Transcranial Magnetic Stimulation (TMS).
01:17Auditory Perception
The auditory system is essential for sound perception, utilizing various critical structures. When sound waves enter the outer ear, they travel through the ear canal and cause the eardrum to vibrate. These vibrations are then transmitted to the middle ear, where three tiny bones – the malleus, incus, and stapes – amplify the sound. This amplification is crucial, as it ensures that the sound vibrations are strong enough to be conveyed to the inner ear. These vibrations then reach the cochlea, a...