Related Experiment Video
Updated: May 4, 2026
06:45
Rating L-DOPA-Induced Dyskinesias in the Unilaterally 6-OHDA-Lesioned Rat Model of Parkinson's Disease
Published on: October 4, 2021
3.2K
Prosody and levodopa in Parkinson's disease
Arquivos De Neuro-Psiquiatria
|January 8, 2014
Summary
Parkinson's disease patients use prosody for attitude expression similarly to controls. Levodopa improves prosody duration in Parkinson's disease (PD) patients, but not when attitudes are considered.
Area of Science:
- Neurolinguistics
- Speech Science
Background:
- Limited research exists on prosodic parameter use for attitude expression in Parkinson's disease (PD).
- Understanding these nuances is crucial for assessing communication in PD.
Purpose of the Study:
- To evaluate prosodic parameters in attitude expression in idiopathic PD.
- To determine the effect of levodopa on these prosodic parameters.
Main Methods:
- Studied 10 idiopathic PD patients during "off" and "on" levodopa states.
- Compared PD patients with 10 neurologically healthy controls.
Main Results:
- Parkinson's disease patients exhibited reduced frequency and increased duration measurements.
- Levodopa administration led to a decrease in the duration parameter.
Conclusions:
- PD patients' prosodic attitude expression is comparable to controls, irrespective of levodopa.
- Levodopa effectively improves prosody duration when attitudes are not the primary focus.
Related Concept Videos
01:24Parkinson's Disease: Treatment
1.4K
Neurodegenerative disorders, such as Parkinson's Disease (PD), involve the gradual and irreversible destruction of neurons in particular brain areas. These disorders exhibit standard features like proteinopathies, selective vulnerability of some neurons, and an interaction of intrinsic properties, genetics, and environmental influences in neural injury.
Parkinson's Disease is primarily a result of the loss of dopaminergic neurons in the substantia nigra pars compacta. The cornerstone of...
Parkinson's Disease is primarily a result of the loss of dopaminergic neurons in the substantia nigra pars compacta. The cornerstone of...
1.4K
01:15Parkinson's Disease: Overview
2.2K
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...
2.2K
01:24Parkinson Disease l: Introduction
28
Parkinson’s disease is a chronic, progressive neurodegenerative disorder that primarily affects movement. It is characterized by motor symptoms such as resting tremors, muscle rigidity, bradykinesia (slowness of movement), and postural instability. Patients may notice hand tremors at rest, stiffness during movement, or a shuffling gait. In addition to motor features, non-motor symptoms include sleep disturbances, mood and behavioral changes, constipation, and cognitive impairment, all of...
28
01:24Parkinson Disease ll: Pathophysiology
28
Parkinson disease (PD) is a progressive neurodegenerative disorder primarily affecting movement, with additional non-motor features. Its pathophysiology involves complex interactions among genetic susceptibility, environmental exposures, and cellular dysfunction, including dopaminergic neuron loss, protein aggregation, and mitochondrial impairment.Selective NeurodegenerationA key feature is the degeneration of dopaminergic neurons in the substantia nigra pars compacta, leading to reduced...
28
01:37Neural Regulation
34.8K
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.
34.8K
01:11Alterations in Muscle Tone lll
29
Rigidity and myotonia are distinct abnormalities of muscle tone that affect resistance and relaxation during movement. Although both involve altered muscle contraction, they arise from different neurological and muscular mechanisms.CharacteristicsRigidity is characterized by uniform resistance to passive movement across the entire range, independent of speed, affecting flexors and extensors equally. It may appear as lead-pipe rigidity (smooth, constant resistance) or cogwheel rigidity...
29