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The purpose of the protocol is to localize the neural regions and systems mediating the forms of knowledge representations hypothesized by the principal investigator to be stored in the human prefrontal cortex. Utilizing a variety of experimental neuropsychological tasks during functional MRI, we will investigate hypotheses regarding the role of the dorsolateral and ventromedial prefrontal cortex in social cognition and emotional processing. We will ascertain the relationship between so-called cold cognition such as event knowledge and "hot" social cognition such as attitude formation and specific brain regions within the prefrontal cortex. We will also attempt to determine the relationship between non-frontal neural structures involved in emotional expressions, such as amygdala, and those frontal neural structures involved in executive functions that may modulate emotion. The data that we collect in this protocol will be of value in (1) identifying a set of neural regions and distributed networks mediating the forms of knowledge representation stored in the prefrontal cortex and (2) developing functional MRI screening measures for subjects at-risk for developing a neurological disorder. We will also use the data obtained in these studies with healthy adult volunteers to constrain theories of frontal lobe function based on the study of patients with focal or diffuse frontal lobe lesions and to provide convergent evidence for the role of specific frontal cortex sectors in specific cognitive functions....
The purpose of the protocol is to localize the neural regions and systems mediating the forms of knowledge representations hypothesized by the principal investigator to be stored in the human prefrontal cortex. We suspect that political attitudes can also be viewed as a type of stored knowledge. Utilizing a variety of experimental neuropsychological tasks during functional MRI, we will investigate hypotheses regarding the role of the dorsolateral and ventromedial prefrontal cortex in social cognition and emotional processing. We will ascertain the relationship between so-called cold cognition such as event knowledge and hot social cognition such as attitude formation and specific brain regions within the prefrontal cortex.
Normal adult volunteers will participate in experiments dealing with processing of event knowledge, general attitudes, political stereotypes and attitudes, using fMRI.
All the experiments will employ within-subject event-related fMRI design to determine whether activations of different cortical areas correspond to different kind of stored knowledge.
The data that we collect in this protocol will consist of fMRI activation images corresponding to varying neuropsychological tasks. The will be of value in (1) identifying a set of neural regions and distributed networks mediating the forms of knowledge representation stored in the prefrontal cortex and (2) developing functional MRI screening measures for subjects at-risk for developing a neurological disorder.
National Institutes of Health Clinical Center, 9000 Rockville Pike
National Institutes of Health Clinical Center (CC)
Published on BioPortfolio: 2014-08-27T03:55:13-0400
Healthy Together is a program that promotes the achievement and maintenance of healthy weights in children and their families.
Investigators conducted a pilot feasibility and acceptability randomized controlled trial of a remotely delivered behavioral health coaching program in pregnancy and postpartum.
Absorption, distribution, metabolism, and excretion (ADME) study with 14C in healthy young men.
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To assess the safety, tolerability, pharmacokinetics, and pharmacodynamics of IMA-026 administered subcutaneously (SC) or intravenously (IV) in healthy adults.
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Across Ontario, the Healthy Babies Healthy Children (HBHC) postpartum screening tool is routinely used to identify families with potential risk of negative development outcomes for children.
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Governmental guidelines and objectives pertaining to public food supply and nutrition including recommendations for healthy diet and changes in food habits to ensure healthy diet.
Surgical reinnervation of a denervated peripheral target using a healthy donor nerve and/or its proximal stump. The direct connection is usually made to a healthy postlesional distal portion of a non-functioning nerve or implanted directly into denervated muscle or insensitive skin. Nerve sprouts will grow from the transferred nerve into the denervated elements and establish contact between them and the neurons that formerly controlled another area.
Process of evaluating the health of a patient and determining if they are healthy enough for surgery.
Dietary patterns which have been found to be important in reducing disease risk.
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Of all the types of Dementia, Alzheimer's disease is the most common, affecting around 465,000 people in the UK. Neurons in the brain die, becuase 'plaques' and 'tangles' (mis-folded proteins) form in the brain. People with Al...
Within medicine, nutrition (the study of food and the effect of its components on the body) has many different roles. Appropriate nutrition can help prevent certain diseases, or treat others. In critically ill patients, artificial feeding by tubes need t...