Sökning: "resting-state functional connectivity"

Visar resultat 1 - 5 av 34 avhandlingar innehållade orden resting-state functional connectivity.

1. 1. Congenital adrenal hyperplasia : pre-and postnatal treatment effects on cognition, behavior and brain resting-state functional connectivity

   Författare :Valeria Messina; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : Congenital adrenal hyperplasia (CAH), an autosomal recessive disorder affecting adrenal steroid synthesis, is linked to impaired adrenal synthesis of cortisol and aldosterone. The increased production of androgen precursors in the adrenal cortex during fetal life leads to the virilization of external genitalia in girls with CAH already in utero. LÄS MER

3. 2. Methods for longitudinal brain imaging studies with dropout

   Författare :Tetiana Gorbach; Xavier de Luna; Anders Lundquist; Martin A. Lindquist; Umeå universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Missing data; nonignorable dropout; sensitivity analysis; uncertainty intervals; pattern-mixture models; aging; cognition; MRI; brain structure; resting-state functional connectivity; Statistics; statistik;

   Sammanfattning : One of the challenges in aging research is to understand the brain mechanisms that underlie cognitive development in older adults. Such aging processes are investigated in longitudinal studies, where the within-individual changes over time are observed. However, several methodological issues exist in longitudinal analyses. LÄS MER

4. 3. Stroke recovery activity-dependent mechanisms

   Författare :Miriana Quattromani; Neurokirurgi; []
   Nyckelord :Stroke recovery; Photothrombosis; Enriched environment; Bioluminescence imaging; Toll-like receptor 2; Microglia; Neurons; Extracellular matrix; Perineuronal nets; Aggrecan; Proteases; Parvalbumin; Resting-state functional connectivity;

   Sammanfattning : Stroke is the leading cause of disability in developed countries and among the major causes of death worldwide. During a stroke, neurons deprived of their normal metabolic substrates cease to function in seconds and show signs of structural damage after only a few minutes which result in the impairment of sensory and motor function. LÄS MER

5. 4. Strategies in the rat gambling task : Individual differences in decision-making and associations to behavior, neurobiology and human strategies

   Författare :Nikita Tjernström; Erika Roman; Barry Everitt; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Behavior; copulatory test; decision-making; ethanol; gambling disorder; impulsivity; individual differences; Iowa gambling task; MALDI-MSI; multivariate concentric square field; neurobiology; novel cage; opioid antagonist; rat gambling task; resting-state fMRI; Farmaceutisk vetenskap; Pharmaceutical Science;

   Sammanfattning : Gambling disorder (GD) is a behavioral addiction characterized by persistent and recurrent gambling behavior that disrupts personal, social or professional life. Studies have revealed that GD shares many features with alcohol and substance use disorders, but little is known about potential unique features in GD and to what extent characteristics are shared. LÄS MER

7. 5. A tiny glimpse into the human brain using model-free analysis for resting-state fMRI data

   Författare :Yanlu Wang; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : Resting-state functional Magnetic Resonance Imaging (fMRI) acquires four dimensional data that indirectly depicts human brain activity. Within these four dimensional datasets reside resting-state functional connectivity networks (RFNs), depicting how the human brain is organized functionally. LÄS MER