Essays about: "basala ganglierna"

Found 4 essays containing the words basala ganglierna.

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

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

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

    Abstract : 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. READ MORE

  2. 2. Low dimensional representations of neuronal activity in Parkinson’s disease

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Gustav Röhss; Míriam Vall; [2020]
    Keywords : ;

    Abstract : This project has been concerned with developing methods for dimensionality reduction and feature extraction of brain activity in the basal ganglia in parkinsonian brains. Dimensionality reduction of local field potential activity was based on feature vectors produced from the discrete Fourier transform of activity. READ MORE

  3. 3. HIGH-FREQUENCY OSCILLATIONS IN A MOUSE MODEL OF PARKINSON’S DISEASE

    University essay from Umeå universitet/Institutionen för psykologi

    Author : Love Zachrisson; [2020]
    Keywords : 6-OHDA; Parkinson s Disease; Basal Ganglia; LID; Gamma oscillation; 80Hz; HFO; Multichannel electrode array; Parkinsons sjukdom; 6-OHDA; LID; HFO; Gamma oscillering; 80Hz; Basala Ganglierna; Elektrodimplantat;

    Abstract : Dopamine replacement therapy is the main method of treating Parkinson’s Disease (PD), however over time this treatment causes increasingly abnormal, involuntary movements. This symptom, known as Levodopa-Induced-Dyskinesia (LID) is associated with aberrant, high frequency oscillations (HFOs) in the motor cortex and basal ganglia, as demonstrated with implanted electrodes in human Parkinson’s patients as well as in a rat model of Parkinson’s Disease. READ MORE

  4. 4. Segmentation and Alignment of 3-D Transaxial Myocardial Perfusion Images and Automatic Dopamin Transporter Quantification

    University essay from Linköpings universitet/Medicinsk informatikLinköpings universitet/Tekniska högskolan

    Author : Leo Bergnéhr; [2008]
    Keywords : Segmentation; Morphon; SPECT; Myocardial; DAT;

    Abstract : Nukleärmedicinska bilder som exempelvis SPECT (Single Photon Emission Tomogra-phy) är en bildgenererande teknik som ofta används i många applikationer vid mätning av fysiologiska egenskaper i den mänskliga kroppen. En vanlig sorts undersökning som använder sig av SPECT är myokardiell perfusion (blodflöde i hjärtvävnaden), som ofta används för att undersöka t. READ MORE