Questioning the role of the frontopolar cortex in multi-component behavior--a TMS/EEG study
Krutika Gohil1, Gabriel Dippel1, Christian Beste1
1Cognitive Neurophysiology, Department of Child and Adolescent Psychiatry, Faculty of Medicine of the TU Dresden, Germany.
Scientific Reports
|March 1, 2016
Summary
The frontopolar cortex (FPC) does not play a role in action cascading for cognitive control, contrary to previous research. This study refines our understanding of FPC involvement in complex behaviors.
Area of Science:
- Neuroscience
- Cognitive Psychology
Background:
- Cognitive control is crucial for daily tasks, often requiring the integration of multiple actions.
- The prefrontal cortex, particularly the frontopolar cortex (FPC), has been implicated in multi-component behaviors.
- Direct evidence for the FPC's role in implementing action cascading remains limited.
Purpose of the Study:
- To investigate the causal role of the frontopolar cortex (FPC) in action cascading processes.
- To examine the FPC's contribution to cognitive control in multi-component tasks using Transcranial Magnetic Stimulation (TMS) and Electroencephalography (EEG).
Main Methods:
- Utilized a TMS/EEG study design to directly probe the function of the FPC.
- Measured behavioral and neurophysiological parameters associated with action cascading.
- Employed Bayesian analysis to rigorously evaluate the evidence.
Main Results:
- The FPC did not significantly modulate behavioral or neurophysiological measures of action cascading.
- Results contrasted with findings implicating the dorsolateral prefrontal cortex in similar processes.
- Bayesian analysis supported the lack of a significant effect of FPC stimulation.
Conclusions:
- The frontopolar cortex (FPC) does not appear to be essential for action cascading when cognitive control relies on stopping and switching processes without high working memory demands.
- The proposed role of the FPC in multi-component behavior may need refinement, particularly in tasks not heavily reliant on working memory.
- These findings challenge existing models and suggest a more nuanced understanding of prefrontal cortex contributions to cognitive control.
Related Concept Videos
01:23Somatosensory, Motor, and Association Cortex
4.0K
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...
4.0K
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
8.9K
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....
8.9K
01:14Role of Cerebellum and Prefrontal Cortex in Memory
1.4K
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...
1.4K
01:22Lobes of the Cerebrum
5.7K
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....
5.7K
01:30Organization of the Brain
3.3K
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...
3.3K