Sökning: "event-related potentials"

Visar resultat 1 - 5 av 30 avhandlingar innehållade orden event-related potentials.

  1. 1. Fearful attention : Investigating event-related potentials in spider phobia

    Författare :Joakim Norberg; Stefan Wiens; Jonas Persson; Harald Schupp; Stockholms universitet; []
    Nyckelord :SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; attention; phobia; event-related potential; psykologi; Psychology;

    Sammanfattning : Previous studies showed that emotional pictures capture attention. Further, this effect was decreased by manipulating spatial attention. In contrast, studies produced mixed findings for effects of perceptual load on attention to emotional pictures. Emotional pictures can be phobic or nonphobic. LÄS MER

  2. 2. Applications of event-related potentials in the study of attention

    Författare :Magnus Lindgren; Institutionen för psykologi; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; event-related potentials; attention; nicotine; toxic encephalopathy; hypoglycaemia; P300; Psychology; Psykologi;

    Sammanfattning : Event-related potentials were measured in a series of studies where issues concerning attention were of special interest. In particular, the P300 was used as an index of controlled attention. Papers I and III studied nicotine effects on the P300. LÄS MER

  3. 3. Auditory event-related potentials and cognitive outcome after very preterm birth

    Författare :Holger Hövel; Lund Pediatrik; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Preterm; Event-related potentials; Mismatch negativity; Magnetic resonance imaging; developmental outcome;

    Sammanfattning : Children born before 32 gestational weeks have a high incidence of neuropsychological deficits. The structural and functional correlates of such impairments in preterm infants are incompletely understood, and early diagnostic tools are needed, but still lacking. LÄS MER

  4. 4. On Signal Dependent Basis Functions, Estimation of Event Related Potentials and Multiple Window Spectrum Analysis

    Författare :Maria Hansson; Institutionen för elektro- och informationsteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Signalbehandling; Signal processing; spectrum analysis; multiple windows; anaesthesia; Nb-trough; damped sinusoids; single ERP; Signal dependent basis functions; Event Related Potentials;

    Sammanfattning : The three parts of this thesis are different examples of utilization of signal dependent basis functions in the estimation procedure. The first part surveys a number of parametric methods applied to estimation of single ERP (P300). LÄS MER

  5. 5. Impulse Response Identification Applied to Estimation of Event-Related Potentials and Non-Intrusive Echo Path Analysis

    Författare :Tomas Gänsler; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Robust; Transfer function; Double-talk; Echo Path; Anaesthesia; Nb-trough; single ERP; Impulse response; Event-related potential; Echo Canceller; Signal processing; Signalbehandling;

    Sammanfattning : This thesis consists of five parts in which problems in two fields, medical and telecommunication, have been studied. In the first part, a prediction algorithm, the Prony method, for estimation of frequencies and damping factors of sinusiods is developed for a coloured noise disturbance. LÄS MER