Related Experiment Video
Updated: Jun 18, 2026
04:48
Control of Eating Behavior Using a Novel Feedback System
Published on: May 8, 2018
Cortical mechanisms of human eating
Forum of Nutrition
|December 4, 2009
Summary
The hedonic aspect of eating, crucial for survival and well-being, involves complex brain processes. This review explores the neural mechanisms and principles governing food reward and hedonic experience in the brain.
Area of Science:
- Neuroscience
- Neurobiology of Eating
- Sensory Processing
Background:
- The hedonic component of eating is under-researched despite its significance for survival, well-being, and links to obesity and eating disorders.
- Understanding the neural basis of food reward and hedonic experience is critical for addressing related health issues.
Purpose of the Study:
- To provide an overview of the neural mechanisms and functional neuroanatomy of brain systems controlling eating.
- To discuss established principles underlying the processing of food-related sensory information and hedonic experience.
Main Methods:
- Review of neuroimaging findings in primate and human studies.
- Analysis of neural processing principles related to eating behavior.
Main Results:
- Identified four key processing principles: motivation-independent sensory discrimination, learning-dependent multimodal representations, reward processing with selective satiation, and hedonic experience representation.
- Detailed the functional neuroanatomy involved in controlling eating behavior.
Conclusions:
- The hedonic component of eating is a complex process involving multiple interacting neural systems.
- Further research into these neural mechanisms is essential for understanding and treating eating disorders and obesity.
Related Concept Videos
01:30Regulation of Food Intake
Short-term regulation of food intake primarily involves neural signals from the gastrointestinal (GI) tract, blood nutrient levels, and GI tract hormones. Communication between the gut and brain via vagal nerve fibers plays a significant role in evaluating the contents of the gut. Clinical studies have shown that protein ingestion produces a more prolonged response in these nerve fibers compared to an equivalent amount of glucose. Additionally, the activation of stretch receptors caused by GI...
01:14Motor and Sensory Areas of the Cortex
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.
01:37Neural Regulation
Digestion begins with a cephalic phase that prepares the digestive system to receive food. When our brain processes visual or olfactory information about food, it triggers impulses in the cranial nerves innervating the salivary glands and stomach to prepare for food.
01:23Somatosensory, Motor, and Association Cortex
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 the...
01:33Somatosensation
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.
01:20Taste Buds and Receptors
Gustation, or the sense of taste, is intrinsically linked to the anatomical structures located on the tongue. This organ's surface, along with the entirety of the oral cavity, is adorned with stratified squamous epithelium. Evident on the tongue are elevated structures known as papillae (singular = papilla), which house the mechanisms for the transduction of gustatory stimuli. Four distinct types of papillae exist, each identified by their unique morphological attributes: the circumvallate,...