Sökning: "Striatum"

Visar resultat 1 - 5 av 25 uppsatser innehållade ordet Striatum.

  1. 1. EVOKED PHASE COHERENCE AS A BIOMARKER FOR ADAPTIVE NEUROMODULATION IN RAT MODEL OF PARKINSON'S DISEASE

    Master-uppsats, Umeå universitet/Institutionen för psykologi

    Författare :Love Zackrisson; [2023]
    Nyckelord :Adaptive; Closed Loop; Neuromodulation; Parkinson’s Disease; Rat model; 6-OHDA; ITC; Phase Coherence; Bayesian Model; Classifier; Spinal Cord Stimulation; Deep Brain Stimulation.; Adaptiv; Closed Loop; Neuromodulation; Parkinson’s Sjukdom; Råttmodell; 6-OHDA; ITC; Faskoherens; Bayesiansk Modell; Klassificerare; Ryggradsstimulering; Djup Hjärnstimulering.;

    Sammanfattning : Neuromodulation, such as spinal cord stimulation (SCS) and deep brain stimulation (DBS), has been shown to modulate pathophysiological brain activity and provide symptomatic therapy for several neurological disorders, including Parkinson’s Disease. The effectiveness of this therapy could likely be further improved by neuromodulation that is adaptive, delivering stimulation more selectively, by monitoring a biomarker in recorded brain signals, which indicates the presence of a pathological state. LÄS MER

  3. 2. Kan djup hjärnstimulering utgöra en effektiv behandling hos behandlingsresistenta personer med tvångssyndrom?

    Kandidat-uppsats, Linnéuniversitetet/Institutionen för kemi och biomedicin (KOB)

    Författare :Amanda Lönneborg; [2022]
    Nyckelord :;

    Sammanfattning : Tvångssyndrom eller obsessive-compulsive disorder (OCD) är en kronisk sjukdom vilket präglas av tvångstankar och tvångshandlingar som baseras på ångest. Tvångssyndrom är en produkt av abnormiteter i kortiko-striato-talamo-kortikala (CSTC)-kretsar vilket är associerat med förändring av transmittorsubstanserna serotonin, dopamin, glutamat och γ-aminosmörsyra. LÄS MER

  4. 3. Sex-dependent differences in human reward processing : A systematic review

    Magister-uppsats, Högskolan i Skövde/Institutionen för biovetenskap

    Författare :Simon Nyqvist Ghashghaian; [2022]
    Nyckelord :Reward-processing; sex-differences; dopamine; reward pathways; sex hormones;

    Sammanfattning : Much work has been done in the neuroscience of reward processing, such as; mapping brain areas, key neurotransmitters, and connectivity patterns related to different aspects of reward-related behavior. There are a lot of suggested behavioral and neural sex differences in reward processing, primarily based on animal studies of reward behavior. LÄS MER

  5. 4. Dopamine Waves Lead to a Swift and Adaptive Reinforcement Learning Algorithm

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Gergö Gömöri; [2021]
    Nyckelord :Reinforcement Learning; Dopamine; Basal Ganglia; Successor Representation; förstärkningsinlärning; dopamin; basala ganglierna; successionsrepresentation;

    Sammanfattning : Accumulating evidence suggests that dopaminergic neurons show significant task-related diversity. Curiously, dopamine concentration and dopamine axon activity show spatio-temporal wave patterns in the dorsal striatum. LÄS MER

  7. 5. OCD as behavioral addiction and the reward process : A systematic review

    Kandidat-uppsats, Högskolan i Skövde/Institutionen för biovetenskap

    Författare :Snezjana Budajeva; [2021]
    Nyckelord :Obsessive-compulsive disorder; reward; addiction;

    Sammanfattning : Studies have shown that aberrant activity in some brain regions involved in the pathology of OCD overlaps similarly with individuals with addiction disorders. The reduced anxiety following a compulsion together with findings of diminished activation in the striatum during reward anticipation proposes a view of OCD being a behavior addiction. LÄS MER