On binaural beats

Fritze, W.

doi:10.1007/bf00453554

Cited by 5 publications

(3 citation statements)

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“…A phenomenon called binaural interaction, in which the sum of two recordings made in response to stimuli presented to each side separately does not equal the recording in response to stimuli presented binaurally, has been found to occur with the middle latency response (MLR) as well as the ABR (Debruyne, 1984;Ozdamar et al, 1986;Thodi & Katbamna, 1993;Kraus & McGee, 1995;Stollman et al, 1996;Brantberg et al, 1999). Further evidence of a central interaction has come from perceptual data, such as binaural beats, where the subject perceives a 'beating' sound in response to two tones presented to opposite ears (Fritze, 1985). Interestingly, this type of experimental paradigm (e.g.…”

Section: Sumariomentioning

confidence: 93%

The effects of a second stimulus on the auditory steady state response (ASSR) from the inferior colliculus of the chinchilla

McNerney

Burkard

2010

International Journal of Audiology

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The auditory steady-state response (ASSR) is an auditory evoked potential which follows the envelope of the stimulus. One of the advantages of the ASSR is that multiple stimulation frequencies can be tested simultaneously. In experiment 1, we evaluated the effects of simultaneously presenting two separate stimuli on ASSR response amplitude. In experiment 2, we evaluated the effects of presenting two ASSR-generating stimuli monotically vs. dichotically, either ipsilaterally or contralaterally to the recording electrode. Recordings were made from the chinchilla inferior colliculi, in response to tonebursts, two-tones, or sinusoidally-amplitude modulated tones. We found that the addition of a second stimulus resulted in a reduction in ASSR response amplitude at moderate to high stimulus levels. The amount of amplitude reduction was typically larger in the monotic (e.g. approximately 50%) vs. dichotic condition (e.g. approximately 10-20%), regardless of whether the responses were recorded ipsilaterally or contralaterally to the ear of stimulus presentation. In conclusion, central as well as peripheral interactions contribute to the reduction in ASSR amplitude in response to the simultaneous presentation of multiple stimuli.

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Section: Sumariomentioning

confidence: 93%

The effects of a second stimulus on the auditory steady state response (ASSR) from the inferior colliculus of the chinchilla

McNerney

Burkard

2010

International Journal of Audiology

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“…Moreover, the percept faded after a period of listening and required a restorative break before returning to salience. Even in frequency regions conducive to binaural beat perception (e.g., 500-Hz region, Δ f < 2 Hz) it has been reported that the percept can fade after several minutes of continuous listening (Fritze, 1985). Training and experience also appear to play a role.…”

Section: Introductionmentioning

confidence: 99%

Binaural beat salience

2012

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Previous studies of binaural beats have noted individual variability and response lability, but little attention has been paid to the salience of the binaural beat percept. The purpose of this study was to gauge the strength of the binaural beat percept by matching its salience to that of sinusoidal amplitude modulation (SAM), and to then compare rate discrimination for the two types of fluctuation. Rate discrimination was measured for standard rates of 4, 8, 16, and 32 Hz – all in the 500-Hz carrier region. Twelve normal-hearing adults participated in this study. The results indicated that discrimination acuity for binaural beats is similar to that for SAM tones whose depths of modulation have been adjusted to provide equivalent modulation salience. The matched-salience SAM tones had relatively shallow depths of modulation, suggesting that the perceptual strength of binaural beats is relatively weak, although all listeners perceived them. The Weber fraction for detection of an increase in binaural beat rate is roughly constant across beat rates, at least for rates above 4 Hz, as is rate discrimination for SAM tones.

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“…Normative human studies on binaural beats showed differences between the subjective rhythm perceived and the difference between the two frequencies, indicating a central effect (Fritze, 1985). Clinical studies of binaural beats in humans varied in their sensitivity to cortical damage.…”

Section: Introductionmentioning

confidence: 99%