| Autor: |
Wisniewski MG; Department of Psychological Sciences., Joyner CN; Department of Psychological Sciences., Zakrzewski AC; Department of Psychological Sciences., Anguiano A; Department of Psychological Sciences. |
| Jazyk: |
angličtina |
| Zdroj: |
Journal of experimental psychology. Human perception and performance [J Exp Psychol Hum Percept Perform] 2023 Mar; Vol. 49 (3), pp. 428-440. Date of Electronic Publication: 2023 Jan 16. |
| DOI: |
10.1037/xhp0001082 |
| Abstrakt: |
Training can improve detection of auditory signals in noise. This learning could potentially occur through active top-down selection mechanisms or stable changes in signal representations. Here, participants were trained and tested (pretest vs. posttest design) on abilities to detect pure tone signals in noise. Auditory evoked potentials (AEPs) to tones were gathered under dichotic listening conditions where participants attended to nontonal stimuli in the opposite ear. Improvements in detection sensitivity were observable regardless of tested tone frequency. This was true in generalization between 861 Hz and 1058-Hz tones (Experiment 1a), and when testing a frequency range > 1 octave (Experiment 2). Such learning was not apparent without training (Experiment 1b). In contrast to behavior, AEP amplitude increases from pre- to posttest were partially specific to trained tone frequencies, even when selective attention was diverted to the opposite ear of tone presentation. Placed in the context of previous work, results suggest that changes in active top-down selection mechanisms and stable signal representations both play a role in auditory detection learning. The mismatch between AEP and behavioral effects suggests a need to consider how these different learning processes can impact detection performance in the variety of listening scenarios a listener may face. (PsycInfo Database Record (c) 2023 APA, all rights reserved). |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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