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What is the lesion method?
The lesion method refers to an approach whereby a focal area of brain damage is correlated with the development of a defect in some aspect of cognition or behavior, and then an inference is made that the damaged brain region is part of the neural substrate for the impaired function.
What is a lesion study and what are its advantages?
Lesion studies provide a method of assessing the necessity of different brain regions for particular social behaviors. The group of Watanabe has found that lesions of the ventral telencephalon, but not the dorsal area, cause a reduction of social behavior in goldfish (Shinozuka and Watanabe, 2004).
How are lesion studies done?
An ablation experiment (or lesioning study) is a research method in which areas of the brain are removed or disabled in order to determine their specific functions. This technique of study involves study lesions of the brain, whether the result of injury, illness, or induced by the researcher.
Why is lesion important in studying the brain?
Lesion studies directly relate brain dysfunction — in the form of a lesion — to behavioral deficits. Similarly, manipulations of brain activity in NHPs or humans can be used to test causal predictions about relationships between brain activity and behavioral and cognitive symptoms in psychiatric populations [133, 134].
What is lesion production?
Lesion Production. Destruction of a particular part of the brain. Lesions can be produced by passing electrical current (AC or DC) through an electrode or with chemicals (such as kainic acid or 6-hydroxydopamine) that destroy neurons.
What are lesions in the brain?
Brain lesions are a type of damage to any part of brain. Lesions can be due to disease, trauma or a birth defect. Sometimes lesions appear in a specific area of the brain. At other times, the lesions are present in a large part of the brain tissue. At first, brain lesions may not produce any symptoms.
What is neuronal recording?
In neuroscience, single-unit recordings provide a method of measuring the electro-physiological responses of a single neuron using a microelectrode system. A microelectrode is inserted into the brain, where it can record the rate of change in voltage with respect to time.
What is stimulation method?
Stimulation techniques (SB) include manipulation, acupuncture, acupressure, physiotherapy, transcutaneous electrical nerve stimulation, reflexotherapy, laser treatment and epidural stimulation technique. The effect of acupuncture and epidural stimulation technique is scientifically well-supported.
What are contract lesions?
LESION, contracts. In the civil law this term is used to signify the injury suffered, in consequence of inequality of situation, by one who does not receive a full equivalent for what he gives in a commutative contract.
Do brain lesions heal?
The prognosis for surviving and recovering from a brain lesion depends upon the cause. In general, many brain lesions have only a fair to poor prognosis because damage and destruction of brain tissue is frequently permanent. However, some people can reduce their symptoms with rehabilitation training and medication.