Related Experiment Video
Updated: Mar 28, 2026
11:28
Concurrent EEG and Functional MRI Recording and Integration Analysis for Dynamic Cortical Activity Imaging
Published on: June 30, 2018
12.4K
Function of the auditory cortex characterized by its intrinsic dynamic coactivation patterns estimated in individuals
Maria Hakonen1,2, Kaisu Lankinen1,2, Parker Kotlarz1,2
1Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital Charlestown, Boston, MA, United States.
Imaging Neuroscience (Cambridge, Mass.)
|March 27, 2026
Summary
The auditory cortex (AC) is functionally organized by dynamic coactivation patterns. These patterns, observed during rest and auditory tasks, synchronize with auditory input, revealing brain network dynamics.
Area of Science:
- Neuroscience
- Auditory Neuroscience
- Brain Imaging
Background:
- Functional organization of the auditory cortex (AC) is challenging to determine using traditional task-based methods due to broad regional responsiveness.
- Existing studies often employ static analytical methods, overlooking the brain's dynamic network organization.
Purpose of the Study:
- To investigate dynamically varying coactivation patterns within the auditory cortex (AC) using high-resolution 7T fMRI.
- To characterize the functional organization of the AC through its dynamic network properties.
Main Methods:
- Utilized 7 Tesla functional magnetic resonance imaging (fMRI) to capture high-resolution brain activity.
- Analyzed dynamically varying coactivation patterns of local networks within the auditory cortex.
- Compared pattern similarities between resting-state and auditory-task conditions.
Main Results:
- Dynamic AC patterns effectively captured significant interindividual variability in occurrence rates and spatial topographies.
- High spatial similarity (0.84 group-level, 0.71 individual-level) was found between resting-state and task-related coactivation patterns.
- Occurrence rates of AC patterns from resting-state templates correlated with specific task contrasts in auditory-task data.
Conclusions:
- Auditory cortex function is characterized by a set of dynamic, coactivating neural patterns.
- These patterns are consistently present during both spontaneous activity (rest) and stimulus-driven processing (auditory tasks).
- The findings suggest that dynamic AC patterns synchronize with auditory inputs, offering insights into brain network dynamics and efficient functional organization studies.
Keywords:
7T fMRIauditory cortexcoactivation patternsdynamic functional connectivityhumanindividual-levelMore Related Videos
Related Concept Videos
01:21Association Areas of the Cortex
10.4K
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,...
10.4K
01:14Motor and Sensory Areas of the Cortex
9.0K
The cerebral cortex, the brain's outermost layer, is pivotal in processing complex cognitive tasks, emotions, and various sensory inputs and executing voluntary motor activities. This intricate structure is divided into three primary functional areas: the motor areas, sensory areas, and association areas.
Motor Areas
The motor areas located in the frontal lobe are central to controlling voluntary movements. This region is further subdivided into the primary motor cortex and the premotor cortex....
Motor Areas
The motor areas located in the frontal lobe are central to controlling voluntary movements. This region is further subdivided into the primary motor cortex and the premotor cortex....
9.0K
01:23Somatosensory, Motor, and Association Cortex
4.3K
The somatosensory cortex in the parietal lobes is crucial for interpreting sensory data such as touch, temperature, and proprioception. The somatosensory cortex, situated in the parietal lobes, plays a vital role in interpreting sensory information like touch, temperature, and proprioception—awareness of body position. This specialized brain region features an organized structure wherein neurons at the top primarily process sensations originating from the lower body. In contrast, those at...
4.3K
01:15Auditory Pathway
8.8K
Auditory pathways constitute the complex neural circuits responsible for transmitting and interpreting auditory information from the peripheral auditory system to the brain. Sound waves are initially captured by the outer ear, funneled through the ear canal, and reach the tympanic membrane (eardrum). These vibrations are transmitted via the middle ear's ossicles to the inner ear's cochlea.
When viewed cross-sectionally, the cochlea reveals the scala vestibuli and scala tympani flanking...
When viewed cross-sectionally, the cochlea reveals the scala vestibuli and scala tympani flanking...
8.8K
01:13The Cochlea
52.5K
The cochlea is a coiled structure in the inner ear that contains hair cells—the sensory receptors of the auditory system. Sound waves are transmitted to the cochlea by small bones attached to the eardrum called the ossicles, which vibrate the oval window that leads to the inner ear. This causes fluid in the chambers of the cochlea to move, vibrating the basilar membrane.
52.5K
01:31Hearing
58.6K
When we hear a sound, our nervous system is detecting sound waves—pressure waves of mechanical energy traveling through a medium. The frequency of the wave is perceived as pitch, while the amplitude is perceived as loudness.
58.6K