How sound affects human mood through sounds?
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noise causes disturbance to our mind.leads to sleeplessness
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Imagine, in one melancholic, lazy afternoon, you heard the sound of rain falling on your roof. You jumped out of your cozy bed and went upstairs to cherish it. Lo!! Then you discover that's not actually the sounds of rain on a roof but is in fact the sounds of mealworms eating a bat carcass. And your brain just went from relaxed rain on the roof to 'eww' in about 300,000ths of a second.
Emotion is one of the most complicated things that the brain has to carry out, and one of the most important drivers of emotion is sound. And the reason it's so important is because it works underneath our cognitive radar.
Sound is capable of producing powerfull reactions in the listener - whether it's a sudden cold sweat caused by a snake's warning hiss, or the uncontrollable grin as a favourite song from our youth comes on the radio.
Sound does not only affect our emotions — our emotions also affect the way recognize and process sound. It’s the neurological phenomenon by which we shrug on hearing signals similar to our alarm clock, and by which combat veterans suffering from post-traumatic stress disorder (PTSD) can have horrifying memories stirred up by the sound of thunder.
Emotions are closely linked to perception and very often our emotional response really helps us deal with reality. Our “auditory plasticity” — the process whereby our perception of sound adapts according to the aural patterns we experience — can be influenced by strong emotions to a point where similar sounds are mistakenly yoked together and interpreted as connoting one and the same thing.
Basis of sound-evoked emotions:
The auditory system evolved phylogenetically from the vestibular system. Interestingly, the vestibular nerve contains a substantial number of acoustically responsive fibres. The otolith organs are sensitive to sounds and vibrations, and the vestibular nuclear complex exerts a major influence onspinal (and ocular) motor neurons in response to loud sounds with low frequencies or with sudden onsets. Moreover, both the vestibular nuclei and cochlear nuclei project to the reticular formation, and the vestibular nucleus also projects to the parabrachial nucleus, a convergence site for vestibular, visceral and autonomic processing. Such projections initiate and support movements and contribute to thearousing effects of music. Thus, subcortical processing of sounds gives rise not only to auditory sensations but also tomuscular and autonomic responses, and the stimulation of motor neurons and autonomic neurons by low-frequency beats might contribute to the human impetus to 'move to the beat'.
Beyond these phylogenetically oldbrainstem systems, which are in part the basis for visceral reactions to sound, several forebrain systems also contribute to sound-evoked emotional experiences.
According to a 2009 study conducted by researchers from University, Sweden, the following are the six psychological mechanisms through which emotions may be produced when the brain reacts to a sound:
1) Brain stem reflex: When the acoustic characteristics of the sound (e.g loud or dissonant) signal a "potentially important and urgent event", causing us to react on an instinctive level.
2) Evaluative conditioning: When an emotion is elicited by sound because we have heard it repeatedly in a certain setting, leading to an association between sound and setting.
3) Emotional contagion: When we perceive the emotion expressed by a piece of music: the music doesn't necessarily sound sad, but rather we recognise it as expressing sadness.
4) Visual imagery: When the structure of a piece of music makes us imagine certain scenes or sensations, such as a rising melody connecting with the sensation of moving upwards.
5) Episodic memory: Also known as the "Darling, they're playing our tune" phenomenon - when a particular sound or piece of music evokes a powerful memory.
6) Music expectancy: This is tied to our experiences with music: for instance, an unfamiliar variation on a standard note progression like may cause feelings of surprise and curiosity.
The first two are in-born reactions, the second two develop during the first few years of our lives, and the last two tend to be learned during childhood and later life.
Emotion is one of the most complicated things that the brain has to carry out, and one of the most important drivers of emotion is sound. And the reason it's so important is because it works underneath our cognitive radar.
Sound is capable of producing powerfull reactions in the listener - whether it's a sudden cold sweat caused by a snake's warning hiss, or the uncontrollable grin as a favourite song from our youth comes on the radio.
Sound does not only affect our emotions — our emotions also affect the way recognize and process sound. It’s the neurological phenomenon by which we shrug on hearing signals similar to our alarm clock, and by which combat veterans suffering from post-traumatic stress disorder (PTSD) can have horrifying memories stirred up by the sound of thunder.
Emotions are closely linked to perception and very often our emotional response really helps us deal with reality. Our “auditory plasticity” — the process whereby our perception of sound adapts according to the aural patterns we experience — can be influenced by strong emotions to a point where similar sounds are mistakenly yoked together and interpreted as connoting one and the same thing.
Basis of sound-evoked emotions:
The auditory system evolved phylogenetically from the vestibular system. Interestingly, the vestibular nerve contains a substantial number of acoustically responsive fibres. The otolith organs are sensitive to sounds and vibrations, and the vestibular nuclear complex exerts a major influence onspinal (and ocular) motor neurons in response to loud sounds with low frequencies or with sudden onsets. Moreover, both the vestibular nuclei and cochlear nuclei project to the reticular formation, and the vestibular nucleus also projects to the parabrachial nucleus, a convergence site for vestibular, visceral and autonomic processing. Such projections initiate and support movements and contribute to thearousing effects of music. Thus, subcortical processing of sounds gives rise not only to auditory sensations but also tomuscular and autonomic responses, and the stimulation of motor neurons and autonomic neurons by low-frequency beats might contribute to the human impetus to 'move to the beat'.
Beyond these phylogenetically oldbrainstem systems, which are in part the basis for visceral reactions to sound, several forebrain systems also contribute to sound-evoked emotional experiences.
According to a 2009 study conducted by researchers from University, Sweden, the following are the six psychological mechanisms through which emotions may be produced when the brain reacts to a sound:
1) Brain stem reflex: When the acoustic characteristics of the sound (e.g loud or dissonant) signal a "potentially important and urgent event", causing us to react on an instinctive level.
2) Evaluative conditioning: When an emotion is elicited by sound because we have heard it repeatedly in a certain setting, leading to an association between sound and setting.
3) Emotional contagion: When we perceive the emotion expressed by a piece of music: the music doesn't necessarily sound sad, but rather we recognise it as expressing sadness.
4) Visual imagery: When the structure of a piece of music makes us imagine certain scenes or sensations, such as a rising melody connecting with the sensation of moving upwards.
5) Episodic memory: Also known as the "Darling, they're playing our tune" phenomenon - when a particular sound or piece of music evokes a powerful memory.
6) Music expectancy: This is tied to our experiences with music: for instance, an unfamiliar variation on a standard note progression like may cause feelings of surprise and curiosity.
The first two are in-born reactions, the second two develop during the first few years of our lives, and the last two tend to be learned during childhood and later life.
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