Sökning: "Resting-state functional connectivity"

Visar resultat 6 - 10 av 34 avhandlingar innehållade orden Resting-state functional connectivity.

1. 6. Brain networks in time : deriving and quantifying dynamic functional connectivity

   Författare :William Hedley Thompson; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : Studying the brain’s structure and function as a network has provided insight about the brain’s activity in health and disease. Networks in the brain are often averaged over trials, frequency and time and this is called functional connectivity. This thesis aims to extend the analyses beyond these assumptions and simplifications. LÄS MER

3. 7. Aging Along the Hippocampal Axis : Structure, Function and Whole-brain Connections in Association with Memory

   Författare :Kristin Nordin; Hedvig Söderlund; Agneta Herlitz; Jessica Damoiseaux; Uppsala universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; hippocampus; aging; longitudinal-axis; episodic memory; spatial memory; connectivity; fMRI; Psychology; Psykologi;

   Sammanfattning : Hippocampus-dependent functions display marked reductions in older age, an observation that has led to the extensive study of age effects on hippocampal properties. Even though research indicates that the hippocampus is structurally and functionally heterogeneous along its longitudinal axis, its anterior and posterior regions differentially supporting episodic and spatial memory representations, few studies explicitly consider age effects in relation to axis. LÄS MER

4. 8. Structural and functional brain connectivity abnormalities associated with adolescent conduct disorder in females

   Författare :Philip Lindner; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : Background: Antisocial behavior (ASB) in childhood and adolescence is indexed by the diagnosis of conduct disorder (CD) and is associated with high rates of comorbid mental disorders, such as anxiety, depression, alcohol and drug dependence, as well as maltreatment. Elevated levels of psychopathic traits further complicate the clinical picture of adolescents with CD. LÄS MER

5. 9. Functional MRI characterization of animal models of parkinsonism

   Författare :Cyril Monnot; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : Parkinson's disease (PD) is the second most common neurological disorder. It is characterized by the progressive development of motor symptoms - bradykinesia, resting tremor, muscular rigidity and difficulty with postural control - which serve as criterias for its clinical diagnosis. LÄS MER

7. 10. Functional brain imaging of sensorimotor dysfunction and restoration : investigations of discomplete spinal cord injury and deep brain stimulation for essential tremor

   Författare :Amar Awad; Johan Eriksson; Patric Blomstedt; Richard Levi; Lars Nyberg; Rick Helmich; Umeå universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Sensorimotor control; fMRI; discomplete spinal cord injury; essential tremor; deep brain stimulation; cerebello-thalamo-cerebral circuit; Physiology; fysiologi; neurokirurgi; Neurosurgery; Neurology; neurologi; rehabiliteringsmedicin; Rehabilitation Medicine;

   Sammanfattning : The nervous system exists to generate adaptive behaviour by processing sensory input from the body and the environment in order to produce appropriate motor output, and vice versa. Consequently, sensorimotor dysfunction is the basis of disability in most neurological pathologies. LÄS MER