i went to a seminar lately on this very subject.
they had said that a study was done using rats and music only. they decided not to use lyrics because we all know that listening to good words is uplifting, but listening to hate talk so to speak is negative. Thats a given ok. so they only used music.
they had 3 sets of rats. one set had no music, one set only played classical type music, and the other set was played music with which was in 4/4 time with the emphasis on the 2 and 4th beats (which most music today is)
after the set amount of time, the observations made on the rats where interesting.
the set with no music, obviously showed no change.
the set that had classical type music showed no change in behavior.
But...the rats that had the music played with the emphasis on the 2nd and 4th beats fought with eachother constantly, they were aggitated, and some even turned to cannibalism!
The researchers decided to to investigate further so they (unfortunatly) disected the rats brains to find out why.
what they found was the first two set of rats, there brains were normal.
but the other set of rats (the ones who were angry etc,.) they had actually something wrong with there brains. the music had changed something with there brains. i wish i could remember what it was exactly, but it actually changed the physical nature of the brain. i think it had to do with the pathways used in the transfer of informations between things in the brain. the pathway should be staight, but these rats had majorly crooked and all messed up pathways.
So with that being said, i am on the fence now with the music i listen to. i am studying the issue more, so i can make an educated ruling one way or the other. but so far, the evidence is showing not good in favor of some music.
with that being said, let it be known that i REALLY enjoy music! I love contemporary christian music! so i am not just jumping into something. this study on music has the potential to be life changing since this is the type of music i listen to!!
I have heard reports of many such studies, even watched a Mythbuster's episode where they repeated a study to confirm or deny the effects of rock or classical music on pea plants. As I recall, it was busted.
When I read your reference to this study you were told about in the seminar you attended, I rushed to Snopes to see if it was an urban legend. Nothing there. So, I turned to Google and found a Baby Genious article that confirmed what you had been told and one of the doctors who was involved with the research. Armed with that name, I Googled further and found additional articles invoking the same study. The interesting thing is, I discovered that the orginal article had taken some poetic license with the details. I am providing the links to three of the articles as well as a brief overview of the details from each.
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http://www.internationalparentingassociation.org/Music/studies.html
rats were stated as subjects of study
waltz music was control group
rock-type music was other
within a few days, rock-type rats had lost memory and turned cannibalistic
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http://vanillafudge.com/link_backups/music2.htm
mice not rats
no music
Strauss Waltz
Voodoo drums, quietly
measured each group for cognitive ability to remember a maze to food
no music - no change in ability to remember
Strauss Waltz - increased memory ability
Voodoo drums - strongly impaired ability to remember maze
dissecting of voodoo brain group revealed brain damage
no cannibalism described
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http://www.reversespins.com/music.html
mice not rats
no music
Strauss Waltz
Voodoo drums, quietly
measured each group for cognitive ability to remember a maze to food
no music - no change in ability to remember
Strauss Waltz - increased memory ability
Voodoo drums - strongly impaired ability to remember maze
dissecting of voodoo brain group revealed brain damage
no cannibalism described
This article's author's motivation is to hope to prove that the friction from the music stimulates the chakra, which creates an assault on the Light/chi of the individual.
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My point is, don't make a life-changing decision based on one study. Seek the facts before taking action. Sometimes there are subtle motivations that attempt to play on our fears in order to move us to whatever action these seminars may be supporting. God gave each of us a brain. Let's use them.