Related Experiment Video
Updated: Jun 28, 2025
06:04
Functional Mapping with Simultaneous MEG and EEG
Published on: June 14, 2010
17.9K
Simultaneous cortical, subcortical, and brainstem mapping of sensory activation
Neha A Reddy1,2, Rebecca G Clements1,2, Jonathan C W Brooks3
1Department of Physical Therapy and Human Movement Sciences, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States.
Biorxiv : the Preprint Server for Biology
|April 25, 2024
Summary
This study used advanced whole-brain imaging to map tactile sensory processing. Researchers successfully identified distinct brainstem nuclei responses to touch, advancing sensory system understanding.
Area of Science:
- Neuroscience
- Sensory Systems Research
- Medical Imaging
Background:
- Tactile sensory stimuli are processed across the cortex, subcortex, and brainstem.
- Whole-brain functional magnetic resonance imaging (fMRI) is valuable for studying sensory processing but faces challenges in brainstem signal detection.
- High-resolution imaging is needed to differentiate small brainstem structures like the cuneate and gracile nuclei.
Conclusions:
- Simultaneous cortical, subcortical, and brainstem mapping at 3T is feasible and effective.
- This technique provides a powerful tool for understanding the human sensory system.
- The approach holds potential for studying clinical cohorts with sensory deficits.
Related Concept Videos
01:24Somatosensory, Motor, and Association Cortex
490
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...
490
01:14Motor and Sensory Areas of the Cortex
3.8K
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....
3.8K
01:33Somatosensation
36.6K
The somatosensory system relays sensory information from the skin, mucous membranes, limbs, and joints. Somatosensation is more familiarly known as the sense of touch. A typical somatosensory pathway includes three types of long neurons: primary, secondary, and tertiary. Primary neurons have cell bodies located near the spinal cord in groups of neurons called dorsal root ganglia. The sensory neurons of ganglia innervate designated areas of skin called dermatomes.
36.6K
01:21Association Areas of the Cortex
5.3K
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,...
5.3K