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Visar resultat 1 - 5 av 1000 avhandlingar som matchar ovanstående sökkriterier.

  1. 1. Brain activity associated with episodic memory : similarities and differences between encoding and retrieval

    Författare :Jonas Persson; Umeå universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Episodic memory; encoding; retrieval; positron emission tomography PET ; enactment; overlap; retrieval mode; retrieval success; novelty;

    Sammanfattning : Understanding the mnemonic functions of the brain has been extensively facilitated by the development of functional neuroimaging techniques such as positron emission tomography (PET) and functional magnetic resonance imaging (fMRI). The present thesis aims at investigating the neural mechanisms underlying memory for personally experienced events (episodic memory), using PET. LÄS MER

  3. 2. The novelty/encoding hypothesis : relies on a genuine but elusive effect

    Författare :Carola S. Åberg; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Memory; Minnet;

    Sammanfattning : .... LÄS MER

  4. 3. Computational Diffusion MRI: Optimal Gradient Encoding Schemes

    Författare :Mohammad Alipoor; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Gradient Encoding Scheme; ADC imaging; Diffusion MRI; D-optimal experiment design; Diffusion Tensor Imaging; Optimal Image acquisition; Second and Fourth Order Tensors.; Diffusion Kurtosis Imaging;

    Sammanfattning : Diffusion-weighted magnetic resonance imaging (dMRI) is a non-invasivestructural imaging technique that provides information about tissue microstructures.Quantitative measures derived from dMRI reflect pathologicaland developmental changes in living tissues such as human brain. LÄS MER

  5. 4. Tracking the Mind's Eye : Eye movements during mental imagery and memory retrieval

    Författare :Roger Johansson; Kognitionsvetenskap; []
    Nyckelord :HUMANIORA; HUMANITIES; Mental Imagery; Eye Movements; Eye-tracking; Encoding; Recall; Memory Retrieval; Episodic Memory;

    Sammanfattning : This thesis investigates the relationship between eye movements, mental imagery and memory retrieval in four studies based on eye-tracking experiments. The first study is an investigation of eye movements during mental imagery elicited both visually and verbally. LÄS MER

  7. 5. Processing Asymmetries of Emotionally Valenced Stimuli

    Författare :Mats Dahl; Institutionen för psykologi; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Psychology; recollective experience; remember-know; memory; encoding; processing asymmetries; emotional words; emotional faces; affective pictures; emotion; affective information; Psykologi;

    Sammanfattning : The central phenomenon investigated concerns the valence-based process asymmetry found in several earlier studies (e.g. Pratto & John, 1991; Taylor, 1991), where negative stimuli seem to initiate more thorough processing than positive stimuli. This finding was consistent in the three empirical studies forming this dissertation. LÄS MER