Focused auditory attention and frequency selectivity
نویسندگان
چکیده
منابع مشابه
Visual and auditory cues to attention : The effect of visual attentional focus on frequency selectivity
An experiment was carried out to determine whether visual cues to attention could affect frequency selectivity. The 19 participants each completed baseline thresholds for auditory and visual stimulus discrimination. Visual thresholds were defined by contrast while auditory thresholds were defined by sound to noise ratio. Participants then had their accuracy tested in both auditory and visual di...
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It is well known that auditory and visual onsets presented at a particular location can capture a person's visual attention. However, the question of whether such attentional capture disappears when attention is focused endogenously beforehand has not yet been answered. Moreover, previous studies have not differentiated between capture by onsets presented at a nontarget (invalid) location and p...
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We used behavioral measures and functional magnetic resonance imaging (fMRI) to study the effects of parametrically varied task-irrelevant pitch changes in attended sounds on loudness-discrimination performance and brain activity in cortical surface maps. Ten subjects discriminated tone loudness in sequences that also included infrequent task-irrelevant pitch changes. Consistent with results of...
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Frequency tagging of sensory inputs (presenting stimuli that fluctuate periodically at rates to which the cortex can phase lock) has been used to study attentional modulation of neural responses to inputs in different sensory modalities. For visual inputs, the visual steady-state response (VSSR) at the frequency modulating an attended object is enhanced, while the VSSR to a distracting object i...
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Recent results have provided new insights into the complexity of sound frequency representation in the auditory midbrain and may identify a neural substrate for behaviourally determined frequency resolution.
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ژورنال
عنوان ژورنال: Perception & Psychophysics
سال: 1987
ISSN: 0031-5117,1532-5962
DOI: 10.3758/bf03203073