Sökning: "event-related potentials"

Visar resultat 16 - 20 av 28 uppsatser innehållade orden event-related potentials.

  1. 16. Processing filler-gap dependencies in an L2: An Event-Related Potential study

    Master-uppsats, Lunds universitet/Masterprogram: Språk och språkvetenskap

    Författare :Andrea Schremm; [2012]
    Nyckelord :Languages and Literatures;

    Sammanfattning : The present study investigated second language (L2) learners’ processing of filler-gap dependencies and tested the implications of Clahsen and Felser’s (2006) shallow structure hypothesis according to which L2 learners underuse syntactic information during the processing of these sentence types. Advanced L2 learners of English (native Swedish speakers) listened to English sentences with object-relative, subject-relative and finite complement clauses. LÄS MER

  2. 17. Localization of Brain Activity in Electroencephalography Data during Brain-Computer Interface Operation

    Master-uppsats, Lunds universitet/Avdelningen för Biomedicinsk teknik

    Författare :Oskar Hjärtquist; [2011]
    Nyckelord :P300 ; N200; Event-related potential ERP; Noise Subspace Fitting NSF ; Null Space Projection NP ; Localization; Dipole source; Elec- troencephalography EEG ; Brain-Computer Interface BCI Speller; Technology and Engineering;

    Sammanfattning : In this Master's thesis I present a means of finding active sources of cortical electrical activity from electroencephalogram (EEG) data acquired during operation of a brain-computer interface (BCI). A novel subspace-based technique was used to suppress spatially correlated EEG interference sources, followed by a technique that estimates the source parameters with a near maximum likelihood performance. LÄS MER

  3. 18. Effects of allocation of attention on initial racial face discrimination

    Kandidat-uppsats, Lunds universitet/Institutionen för psykologi

    Författare :Patrik Setterberg; Johanna Lycke; [2011]
    Nyckelord :Event-related potentials ERP ; race discrimination; face perception; attention allocation; affect misattribution procedure AMP ; Social Sciences;

    Sammanfattning : Utilizing a modified version of the affect misattribution procedure, event-related brain potentials of 32 Caucasian participants were examined in order to study the effects of allocation of attention on early racial face perception and discrimination. When attention was directed away from faces, towards ambiguous non-face stimuli, larger N1s, peaking at approximately 110 ms after stimulus onset, were observed for faces from participants‟ outgroup as compared to N1s for faces from participants‟ ingroup, peaking approximately 114 ms after stimulus onset. LÄS MER

  4. 19. Processing the L2 comprehension process: Testing Processability Theory’s predictions in an ERP study of adult learners of L2 Swedish

    Master-uppsats, Lunds universitet/Allmän språkvetenskap; Lunds universitet/Masterprogram: Språk och språkvetenskap

    Författare :Ariane Senécal; [2011]
    Nyckelord :Predicative Agreement; Attributive Agreement; Processability Theory; Second Language Acquisition; Neurolinguistics; Event-Related Potentials; Swedish as a Second Language; Linguistics; Languages and Literatures;

    Sammanfattning : This small-scale experiment was a first attempt at testing the theoretical framework of Processability Theory (PT), a well-established theory of Second Language Acquisition (SLA), against data from online brain imaging technology (Electroencephalography – EEG). Event Related Potentials (ERPs) were extracted for 15 advanced beginners/intermediate-level learners of Swedish who were presented with grammatical and ungrammatical sentences, each containing one of two grammatical forms evaluated in PT as belonging to two different stages of acquisition (attributive number agreement vs. LÄS MER

  5. 20. Effects of Suprasegmental Features on the Processing of Spoken Words in the Human Brain: Evidence from Mismatch Negativity (MMN)

    Master-uppsats, Lunds universitet/Engelska; Lunds universitet/Masterprogram: Språk och språkvetenskap

    Författare :Hatice Zora; [2011]
    Nyckelord :language processing; brain; lexical access; word recognition; event-related potentials ERP ; mismatch negativity MMN ; stress perception; fundamental frequency; intensity; Languages and Literatures;

    Sammanfattning : The study reported in the present paper aimed to determine the effect of prosodic cues on automatic word processing in the brain by comparing the mismatch negativity (MMN) component of the event-related potentials (ERP) elicited by isolated words and pseudowords. More specifically, it attempted to explore the influence of changes in certain suprasegmental cues such as fundamental frequency and intensity on the perception of linguistic stress patterns by native speakers of American English. LÄS MER