The temporal processes of auditory excitation produced by frequency modulated tones.
نویسندگان
چکیده
منابع مشابه
Infant Auditory Sensitivity to Pure Tones and Frequency-Modulated Tones
It has been suggested that infants respond preferentially to infant-directed speech because their auditory sensitivity to sounds with extensive frequency modulation (FM) is better than their sensitivity to less modulated sounds. In this experiment, auditory thresholds for FM tones and for unmodulated, or pure, tones in a background of noise were measured for 4-month-old infants using a conditio...
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The lateralization of functions to individual hemispheres of the mammalian brain remains, with the exception of the human brain, unresolved. The aim of this work was to investigate the ability to discriminate between falling and rising frequency-modulated (FM) stimuli in rats with unilateral or bilateral lesions of the auditory cortex (AC). Using an avoidance conditioning procedure, thirsty rat...
متن کاملLeft auditory cortex is involved in pairwise comparisons of the direction of frequency modulated tones
Evaluating series of complex sounds like those in speech and music requires sequential comparisons to extract task-relevant relations between subsequent sounds. With the present functional magnetic resonance imaging (fMRI) study, we investigated whether sequential comparison of a specific acoustic feature within pairs of tones leads to a change in lateralized processing in the auditory cortex (...
متن کاملHeterogeneous neuronal responses to frequency-modulated tones in the primary auditory cortex of awake cats.
Previous studies in anesthetized animals reported that the primary auditory cortex (A1) showed homogenous phasic responses to FM tones, namely a transient response to a particular instantaneous frequency when FM sweeps traversed a neuron's tone-evoked receptive field (TRF). Here, in awake cats, we report that A1 cells exhibit heterogeneous FM responses, consisting of three patterns. The first i...
متن کاملTonotopic organization of the human auditory cortex probed with frequency-modulated tones.
Using neuromagnetic source imaging, we investigated tonotopic representation and direction sensitivity in the auditory cortex of humans (N = 15). For this purpose, source analysis was undertaken at every single sampling point during the presentation of a frequency-modulated tone (FM) sweeping slowly downward or upward across periods of 3 s duration. Stimuli were selected to target response prop...
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ژورنال
عنوان ژورنال: Journal of the Acoustical Society of Japan (E)
سال: 1991
ISSN: 0388-2861,2185-3509
DOI: 10.1250/ast.12.43