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28 votes

Is there scientific evidence on the benefits of binaural beats?

Since I was asked in chat about binaural beats, and have been posed this question a number of times before besides, I looked into the most recent literature using Google Scholar for the single term &...
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12 votes

How do we hear our inner voice?

No, inner speech does not follow the same neural pathway as speech coming in from outside. Rather, inner speech uses the same neural mechanism as outer speech - that is, speech going out. The neural ...
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11 votes

Is there scientific evidence on the benefits of binaural beats?

There is very little controlled, modern research on binaural beats. I could only find one source, referenced below, from the late nineties (although there are a few other, more recent non-...
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  • 2,903
11 votes

Is there a difference between hearing and decoding the sound?

Short answer Yes, there is a difference between hearing and understanding sound. Background Acoustic information is processed in different neural centers along the auditory pathway. The ...
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9 votes
Accepted

Acoustic and light wave coherency?

First I have to say that the wavelengths of light are on a totally different order of magnitude than sound. So the parallel drawn in your question "do light waves, for example one with the same wave ...
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  • 19.6k
9 votes

How to test whether a person is Left-Eared or Right-Eared?

The Lateral Preference Inventory Coren (1993) developed an inventory for lateral preference (The Lateral Preference Inventory). Several items concerned ear preference. I found the choice of items ...
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8 votes

Why does your recorded or objective voice sound different to what you hear in your own head?

Jens' answer is pretty much spot on, but misses the fact, remembered from my undergraduate lectures, that your ears actually partially 'turn off' when you speak (or ...
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  • 1,472
8 votes
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Does your voice pitch affect your perceived authority?

There's quite a bit of research related to this topic: Male CEOs with deeper voices make more money and manage larger companies (Mayew et al., 2013). People are more likely to say they would vote ...
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8 votes

Why do people tap their foot to music?

Short Answer: People tap their feet due to increased activity in the cerebellum. Detailed Answer: There already is some evidence that music can release certain neurotransmitters, including ...
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7 votes
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How is tone volume encoded?

There are quite a few stations between cochlea and the brain and I will focus on the auditory nerve. That said, your theories (a) and (b) are both correct, and therefore (d) applies as well. (a) ...
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7 votes

Why is the sound of running water soothing?

There cannot be a single answer to this question which would be entirely correct. Different theoretical approaches to psychology will yield different explanations. This is evident from the other ...
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7 votes

Long term effect of using noise generators

Short answer Yes, continuous exposure to white noise affects neural responses in the auditory system. First, it can alter the tonotopic map in the auditory cortex. Second, it can lead to reduced ...
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7 votes

How does the inner ear encode sound intensity?

Short answer Hair cells in the cochlea can code sound intensity via the amount of neurotransmitter they release. Higher sound levels result in more neurotransmitter release and in turn to higher ...
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7 votes

What is the difference between noise reduction and noise cancellation?

Let's start with the terminologies in your question: Loudness: The level (amplitude) of the sound. The higher the sound level, the louder it is perceived. Loudness is measured on a dB scale, e.g. dBA ...
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7 votes
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What are the temporal limits of the auditory system?

As far as I know, auditory clicks are the shortest possible auditory stimuli. The shortest auditory click I was able to find in the literature, and which was used in a psychophysical context (i.e., ...
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7 votes
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How can someone asleep recognize a very brief sound?

Short answer The auditory system remains active during sleep. Background Filtering of sensory input during sleep is a recognized phenomenon and indeed the senses are typically lulled during sleep. ...
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6 votes
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Why does your recorded or objective voice sound different to what you hear in your own head?

I think this is not a psychological syndrome but just a reflection of the physical procesces. As such it might not be on-topic for this site. Having this said, here is a quick answer. When you hear ...
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6 votes

Is there a difference between hearing and decoding the sound?

It is well documented that people are able to selectively attend to different speakers. The ability to tune-in to a particular speaker and filter out others was dubbed the cocktail party effect, since ...
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6 votes
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Hearing Loss and Potentially hearing more

Short answer People with above-normal hearing exist. Background Normal hearing was defined as the average of a group of young healthy individuals. These normal hearing levels are currently used to ...
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  • 19.6k
6 votes
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How do congenitally deaf and mute people think?

Short answer The inner voice of congenitally (pre-lingually) deaf people who have not received treatment like cochlear implantation, is not sound-based. Instead, it is mainly based on visual images, ...
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  • 19.6k
6 votes

What are the temporal limits of the auditory system?

In terms of the shortest stimuli, the auditory system can process acoustic impulses, but defining the duration of an impulse is problematic. As the duration of the impulse gets shorter, the bandwidth ...
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  • 2,617
5 votes

Is there scientific evidence on the benefits of binaural beats?

From "Binaural Auditory Beats Affect Vigilance Performance and Mood": Participants (n = 29) performed a 30-min visual vigilance task on three different days while listening to pink noise containing ...
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  • 1,798
5 votes

Which is the shortest duration for a pitch difference in audio signals to be perceived by the human auditory system?

It really depends on what you mean by difference in pitch. Subjects can discriminate differences in frequency for very short tones, but it does not mean they are being perceived as pitch differences. ...
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  • 2,617
5 votes

Why do people tap their foot to music?

The short answer is that it is pleasurable. Recent research from Witek et al (2014) sheds light on this. Their research on affective response and desire to move when listening to funk drum breaks ...
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5 votes
Accepted

How does speed listening work?

Your question made me think of JAWS, a screen reader for the blind. I have worked with visually impaired people for a while and I have always wondered how on earth they can understand the speech ...
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5 votes
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Is mapping sound frequencies to the vertical axis universal?

Humans technically don't perceive frequencies, they perceive pitch. According to Wikipedia: the idiom relating vertical height to sound pitch is shared by most languages. citing a 1930 article by ...
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4 votes

How does the brain compute sound localisation without the equations?

The location of a sound is defined on three dimensions: distance, elevation, and azimuth. When the distance between a listener and a sound source is changed there is a change in the overall level as ...
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  • 2,617
4 votes

Why is the sound of running water soothing?

It may have something to do with the manner in which the water flows. Disturbed or moving water has a frequency content/distribution that approaches noise (think ocean waves lapping up against the the ...
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4 votes
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Do we only hear what we want to hear?

The answer ought to be a qualified "Yes." We don't only hear what we want, in as much as motivation has zero direct control over the transduction of auditory signals in a sensory sense. Motivation ...
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  • 9,274
4 votes
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What hardware setup is commonly used for low-latency audio stimulation?

It generally helps to provide some sort of specification as to how well you want to control the timing. There are 4 orders of magnitude difference between the 100 ms timing accuracy required for ...
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  • 2,617

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