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Related Concept Videos

Role of Cerebellum and Prefrontal Cortex in Memory01:14

Role of Cerebellum and Prefrontal Cortex in Memory

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 cerebellum's...
Alterations in Muscle Tone ll01:12

Alterations in Muscle Tone ll

Alterations in muscle tone are common manifestations of neurological disorders and reflect dysfunction within different nervous system regions. Spasticity, paratonia, and dystonia represent distinct forms of hypertonia, each with unique mechanisms, clinical features, and diagnostic importance.CharacteristicsSpasticity happens from upper motor neuron lesions and is characterized by velocity-dependent resistance to passive movement. Clinical features include:Exaggerated deep tendon reflexesClonus...
Higher Mental Functions of the Brain: Language01:10

Higher Mental Functions of the Brain: Language

Language is a system of communication that allows the expression of thoughts, ideas, and feelings. The brain processes language in both hemispheres.
Language formation and comprehension take place in the dominant hemisphere. The dominant hemisphere is responsible for understanding the meaning of spoken, written, or sign language, as well as the ability to communicate. For most people, the left hemisphere is the dominant one. The right hemisphere, then, gives tone and emotional context to the...
Association Areas of the Cortex01:21

Association Areas of the Cortex

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:
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Parkinson's Disease: Overview01:15

Parkinson's Disease: Overview

Neurodegenerative disorders are progressive diseases that cause irreversible damage and loss to neurons in specific brain areas. Examples of these disorders include Parkinson's disease, Alzheimer's disease, Multiple Sclerosis (MS), and Amyotrophic Lateral Sclerosis (ALS). These disorders share characteristics such as proteinopathies, selective neuronal vulnerability, and a complex interplay between genetic and environmental factors. The primary therapeutic goal for these conditions is to...
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Motor and Sensory Areas of the Cortex

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Motor Areas
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Related Experiment Video

Updated: Jul 6, 2026

Frontal Disconnection for Treating Mild Malformation of Cortical Development with Oligodendroglial Hyperplasia in Epilepsy (MOGHE) in the Frontal Lobe
06:04

Frontal Disconnection for Treating Mild Malformation of Cortical Development with Oligodendroglial Hyperplasia in Epilepsy (MOGHE) in the Frontal Lobe

Published on: August 16, 2024

Akinesia and the frontal lobe.

E Niedermeyer1

  • 1Sinai Hospital, Division of Neurology, Baltimore, Maryland, USA.

Clinical EEG and Neuroscience
|March 6, 2008
PubMed
Summary

Severe akinetic episodes in Parkinson disease (PD) may stem from frontal lobe dysfunction, distinct from typical PD hypokinesia. This frontal involvement also explains freezing phenomena and potential severe complications.

Area of Science:

  • Neurology
  • Neuroscience
  • Movement Disorders

Background:

  • Parkinson disease (PD) is characterized by hypokinesia and freezing.
  • Severe akinetic episodes are less understood but have been reported.

Purpose of the Study:

  • To discuss akinesia and its variants in Parkinson disease.
  • To explore the role of frontal lobe dysfunction in severe akinesia and freezing.
  • To differentiate severe akinesia from common Parkinsonian hypokinesia.

Main Methods:

  • Literature review and clinical discussion.
  • Analysis of severe akinetic episodes in Parkinson disease patients.
  • Comparison of akinetic states with frontal lobe impairment and catatonia.

Main Results:

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Last Updated: Jul 6, 2026

Frontal Disconnection for Treating Mild Malformation of Cortical Development with Oligodendroglial Hyperplasia in Epilepsy (MOGHE) in the Frontal Lobe
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Published on: August 16, 2024

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  • Severe akinesia in PD may result from frontal lobe dysfunction, distinct from hypokinesia.
  • Frontal lobe involvement can cause severe complications, including freezing, in PD.
  • Catatonia, a form of schizophrenia, presents a unique akinesia with rare fatal hyperthermia.

Conclusions:

  • Frontal lobe dysfunction is a critical factor in severe akinesia and freezing in Parkinson disease.
  • Distinguishing severe akinesia from hypokinesia is clinically important.
  • Understanding these variants aids in managing complex PD presentations and related conditions.