Neuroscience: Reevaluating the Role of Orbitofrontal Cortex
Brianna J Sleezer1, Benjamin Yost Hayden2
1Department of Neurobiology and Behavior, Cornell University, Ithaca, NY 14853, USA.
Current Biology : CB
|December 18, 2019
Summary
The orbitofrontal cortex is crucial for decision-making, integrating reward information with preferences to guide behavior. This brain region helps determine how recent experiences influence future choices.
Area of Science:
- Neuroscience
- Behavioral Neuroscience
Background:
- The orbitofrontal cortex (OFC) plays a key role in decision-making and value-based learning.
- Understanding how the OFC integrates different types of information to guide behavior is essential.
Purpose of the Study:
- To investigate the necessity of the orbitofrontal cortex in integrating recent reward information with learned preferences.
- To determine the role of the OFC in modulating behavioral demand based on integrated value signals.
Main Methods:
- Optogenetic lesion techniques were employed to selectively inactivate the orbitofrontal cortex in a model system.
- Behavioral assays were designed to assess decision-making processes, incorporating learned preferences and recent reward outcomes.
Main Results:
- Lesioning the orbitofrontal cortex impaired the integration of recent reward information with established preferences.
- Disruption of the OFC altered behavioral demand, demonstrating its role in dynamically adjusting choices based on integrated value.
Conclusions:
- The orbitofrontal cortex is essential for integrating contextual reward information with long-term learned preferences.
- This integration process, mediated by the OFC, is critical for flexible and adaptive goal-directed behavior.
More Related Videos
09:00Investigating the Function of Deep Cortical and Subcortical Structures Using Stereotactic Electroencephalography: Lessons from the Anterior Cingulate Cortex
Published on: April 15, 2015
12.7K
13:18Conducting Concurrent Electroencephalography and Functional Near-Infrared Spectroscopy Recordings with a Flanker Task
Published on: May 24, 2020
8.1K
Related Concept Videos
01:21Association Areas of the Cortex
8.6K
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,...
8.6K
01:14Role of Cerebellum and Prefrontal Cortex in Memory
933
The cerebellum, while traditionally associated with motor control, also plays a crucial role in memory, particularly in procedural memory, which involves learning motor tasks that become automatic through repetition. For example, studies have shown that when the cerebellum is damaged, individuals or animals lose the ability to learn conditioned motor responses, such as the conditioned eye-blink response in classical conditioning experiments with rabbits. This study demonstrates the...
933
01:22Lobes of the Cerebrum
3.7K
The cerebral cortex, a critical structure of the brain, is intricately divided into two hemispheres, each consisting of four distinct lobes: occipital, temporal, frontal, and parietal. These lobes function cooperatively to regulate various cognitive and sensory functions, forming the basis of our complex neural capabilities.
Frontal lobe
The frontal lobes, located behind the forehead, are the command center of our brain, controlling personality, intelligence, and voluntary muscle movements....
Frontal lobe
The frontal lobes, located behind the forehead, are the command center of our brain, controlling personality, intelligence, and voluntary muscle movements....
3.7K
01:30Organization of the Brain
2.2K
The brain is an integral component of the nervous system and serves as the center for processing sensory inputs, making decisions, and directing bodily actions. This complex organ is organized into three primary sections: the hindbrain, midbrain, and forebrain, each responsible for a range of vital functions.
Hindbrain
The hindbrain, located at the base of the brain, plays a vital role in regulating automatic processes that sustain life. It includes the medulla oblongata, which is essential for...
Hindbrain
The hindbrain, located at the base of the brain, plays a vital role in regulating automatic processes that sustain life. It includes the medulla oblongata, which is essential for...
2.2K
01:25Olfaction
47.9K
The sense of smell is achieved through the activities of the olfactory system. It starts when an airborne odorant enters the nasal cavity and reaches olfactory epithelium (OE). The OE is protected by a thin layer of mucus, which also serves the purpose of dissolving more complex compounds into simpler chemical odorants. The size of the OE and the density of sensory neurons varies among species; in humans, the OE is only about 9-10 cm2.
The olfactory receptors are embedded in the cilia of the...
The olfactory receptors are embedded in the cilia of the...
47.9K
01:24Somatosensory, Motor, and Association Cortex
2.0K
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...
2.0K