Sökning: "Perceptual discrimination"

Visar resultat 1 - 5 av 10 avhandlingar innehållade orden Perceptual discrimination.

  1. 1. Perceptual reorganization of vowels : Separating the linguistic and acoustic parts of the mismatch response

    Författare :Ellen Marklund; Francisco Lacerda; Iris-Corinna Schwarz; Riitta Salmelin; Stockholms universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; language acquisition; infants; speech perception; MMR; MMN; perceptual reorganization; Linguistics; lingvistik;

    Sammanfattning : During the first year of life, infants go from perceiving speech sounds primarily based on their acoustic characteristics, to perceiving speech sounds as belonging to speech sound categories relevant in their native language(s). The transition is apparent in that very young infants typically discriminate both native and non-native speech sound contrasts, whereas older infants show better discrimination for native contrasts and worse or no discrimi­na­tion for non-native contrasts. LÄS MER

  2. 2. Effects of peripheral auditory adaptation on the discrimination of speech sounds

    Författare :Francisco Lacerda; Hartmut Traunmüller; Olle Engstrand; Björn Lindblom; Louis Pols; Stockholms universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; Adaptation; discrimination; categorical perception; Phonetics; Fonetik; Phonetics; fonetik;

    Sammanfattning : This study investigates perceptual effects of discharge rate adaptation in the auditory-nerve fibers. Discrimination tests showed that brief synthetic stimuli with stationary formants and periodic source were better discriminated when they had an abrupt as opposed to a gradual onset (non-adapted vs adapted condition). LÄS MER

  3. 3. En perceptuell och akustisk studie av svenskans koronaler i ett dialektperspektiv

    Författare :Peder Livijn; Anders Eriksson; Olle Engstrand; Frank Kügler; Stockholms universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; Swedish; Dialect; Typology; Perceptual discrimination; Acoustical measurements; Phonetics; Fonetik; Phonetics; fonetik;

    Sammanfattning : The purpose of this dissertation is to contribute to a typology of the Swedish language as it was spoken in the entire Swedish speaking area around the year 2000. Specifically, the plan is to base this typology solely on different pronunciations of the four coronal consonants /t, d, n/ and /l/. LÄS MER

  4. 4. Auditory and Olfactory Abilities in Blind and Sighted Individuals : More Similarities than Differences

    Författare :Stina Cornell Kärnekull; Maria Larsson; Mats E Nilsson; Johan Willander; Fredrik U Jönsson; Johannes Frasnelli; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; absolute threshold; audition; autobiographical memory; blindness; discrimination; episodic recognition; identification; imagery; judgments of learning; memory; metacognition; olfaction; onset age of blindness; reminiscence bump; sensory compensation; Psychology; psykologi;

    Sammanfattning : Blind individuals face various challenges in everyday life because of the lack of visual input. However, since they need to rely on the non-visual senses for everyday tasks, for instance, when navigating the environment, the question has been raised as to whether perceptual and cognitive abilities in these senses may be enhanced. LÄS MER

  5. 5. Brain anatomical correlates of perceptual phonological proficiency and language learning aptitude

    Författare :Mikael Novén; Allmän språkvetenskap; []
    Nyckelord :HUMANIORA; HUMANITIES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Prosody; word accent; MRI; language learning aptitude; cortical morphometry; diffusion kurtosis imaging;

    Sammanfattning : The present dissertation concerns how brain tissue properties reflect proficiency in two aspects of language use: the ability to use tonal cues on word stems to predict how words will end and the aptitude for learning foreign languages. While it is known that people differ in their language abilities and that damage to brain tissue cause loss of cognitive functions, it is largely unknown if differences in language proficiencies correlate with differences in brain structure. LÄS MER