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Frontal lobe disorder, also frontal lobe syndrome, is an impairment of the frontal lobe of the brain due to disease or frontal lobe injury. [5] The frontal lobe plays a key role in executive functions such as motivation, planning, social behaviour, and speech production.
Hypofrontality is a symptom of numerous neurological diseases defined as reduced utilization of glucose and blood flow in the prefrontal cortex. Hypofrontality can be difficult to detect under resting conditions, but under cognitive challenges, it has been seen to correlate with memory deficits along with executive function deficits.
Dysexecutive syndrome (DES) consists of a group of symptoms, [1] usually resulting from brain damage, that fall into cognitive, behavioural and emotional categories and tend to occur together. The term was introduced by Alan Baddeley [ 2 ] [ 3 ] to describe a common pattern of dysfunction in executive functions , such as planning, abstract ...
The anterior superior frontal lobe is known as the prefrontal cortex which is responsible for the initiation and ideation of verbal speech. [7] The damage leaves the major language networks, Broca's and Wernicke’s areas and the arcuate fasiculus , unaffected. [ 1 ]
The symptoms observed in bvFTD are caused by dysfunction of the orbitofrontal cortex; thus these two neuropsychological tests might be useful in detecting early-stage bvFTD. However, as self-monitoring and somatic marker processes are so complex, it likely involves other brain regions.
This set of symptoms may be related to Alien Hand Syndrome (AHS), a neurological disorder in which the subject does not acknowledge ownership of a limb when visual cues are lacking. [4] AHS can involve damage to the anterior cingulate gyrus, the medial prefrontal cortex and the anterior corpus callosum when a patient has frontal AHS. The other ...
Children with TS are found to have a larger prefrontal cortex, which may be the result of an adaptation to help regulate tics. [77] It is likely that tics decrease with age as the capacity of the frontal cortex increases. [77] Cortico-basal ganglia (CBG) circuits may also be impaired, contributing to "sensory, limbic and executive" features. [14]
The mesocortical pathway is a dopaminergic pathway that connects the ventral tegmentum to the prefrontal cortex. It is one of the four major dopamine pathways in the brain . It is essential to the normal cognitive function of the dorsolateral prefrontal cortex (part of the frontal lobe), and is thought to be involved in cognitive control ...