Tuesday, November 15, 2011
Effects of Music and White Noise on Working Memory Performance in Monkeys
Monday, November 14, 2011
Tinnitus Sound Therapy Using Customized Sound / Music (A Web-Based Neuro...
In the last 2 years, new discoveries have been made in tinnitus therapy. Researchers and physicians at University of California Irvine have discovered that certain unique sounds can make the ear ringing sound (tinnitus) to give significant relief for some periods of time. These sounds can be used to reduce tinnitus even when listened to for a short time. The problem that has been found is that finding these sounds was found to require significant time consuming sessions in physician or audiology testing. In addition, when listened to on their own, these sounds may not be very pleasant listening.
Enter the innovation of the physicians and researchers at beyondtinnitus.com. Our physician researchers have developed a patent-pending technology, our clinical researchers found that customized tinnitus therapy can be delivered to any patient around the world. The technology allows the research-based harmonic masking therapy to be delivered to the patient using innovative sound mixing technologies and the power of the web. The patients can mix the therapy sound with their own music on their own computer. This is downloaded onto an MP3 player for a customized tinnitus therapy. This way you can listen to your own music while getting relief from your tinnitus. This is unlike the Neuromonics approach of using the same 4 musical pieces every single day! This revolutionary technology is available to anybody at less than 1/10th the cost of Neuromonics!
Reflection!
When I was about 6 years of age, I can remember the first time I went outside to enjoy our new backyard. In the distance, about a kilometre away, Highway 401 thundered along. It was almost unbearable! However, to my surprise, and about a week later, my brain removed that dominant sound from my consciousness, and for the rest of my days living in that area, I never really noticed the highway sounds again. In a way, my brain, while hearing a specific sound from my environment, somehow had turned it off. I no longer perceived the sound as real!
Music, The Brain and Education – Warren Duffer James, Montessori Life 17 no3 Summ 2005
Summary
Music is no longer bound by the limits of it source. The increase in recording technology has increased the amount of music a person can hear but has de-emphasized the needs for people to actively make music together. Making music together was an important activity in the past because your only option for listening was to play yourself or go to a concert, which was not always available. By making music as an activity, the line between performer and audience is blurred.
When performers play together, their brains process the same information at the same time. So essentially they are functioning as one brain while they are working together. Playing music by oneself is also beneficial as it activates different parts of the brain at the same time. Performing causes the brain to coordinate analysis of patterns with physical movement.
Fewer people are participating in acoustical performances but with the increased portability of electronic music players they are actually listening more. Because our society has changed the value of music from performance to electronic, should we re-evaluate how we teach music in schools?
First we need to identify music as organize sound. Then we need to accept that no one type of music is intrinsically better than another. Music is influenced on a cultural level and based on familiarity within a given style. Children however, are not predisposed to be able to understand one style of music over another. They can distinguish between many variances within our Western 12-tone scale, but it is only through exposure are that they are entrained to listen within our parameters. This repetition is of sounds is how the child’s brain learns to process music.
Music is brought into the classroom for a number of reasons. The more traditional reason is to train young people to become proficient performers, which is usually done by a specialist teacher in the music classroom. Another reason is the use of music to assist the brain in acquiring new information. In this case music is piped into the non-music classes in the hopes of increasing brain development. Finally, music can be brought into the classroom as a diversion or for entertainment factor.
Music engages the brain on multiple levels, especially training the brain to process information spatially. In order to support the statement that music can “make you smarter” we need to acknowledge that for any type of brain development it needs to be the “right” music for the “right” person. So what causes one child’s brain to light up will have no effect on another. We traditionally reference Mozart in affecting intelligence but in reality that is the implementation of our Western cannon.
When using music in the classroom there needs to be an emphasis on listening over hearing in context. Music played in the background just becomes noise that the brain will eventually filter out. However music illicits movement so active listening could also include a movement component. It is important to encourage movement and singing outside of the music class to create an active listening experience in which all can participate.
Active music making must be a part of our daily lives if it is to have any long-term effects. It needs to be inclusive of all students, genres, and other subjects. Students should be exposed to live performances as often as possible and encouraged to participate in music regardless of ability or performance anxiety. Music as background noise is not as effective as when students engage in singing and moving with the music. Teachers do not need to be leaders of music making, as the children should be interacting with the music on their own. Music in schools is not meant for a select group of people nor is it meant to “make children smarter”. It is meant to be enjoyed as a social activity and promote cohesion in the classroom.
Reflection
I see the influence of electronic music in my own classroom. When I ask my students how they listen to music their top answers are through personal music players and headphones. There is a disconnect from the social aspect of music making and as a result music becomes something which is only personal. When they get the opportunity to play as a group in an ensemble, a lot of them enjoy the group aspect of music making over the actual music they are playing. In this case we are not training elite musicians, rather we are creating a space where musical experience can occur.
I think an engaging teacher changes their learning goals based on the students readiness for the lesson. Sometimes I push my students to become proficient performers, but other times our goal is to have fun while playing an instrument. I do not think it is as segmented as the article makes it out to be. I do agree however, that students must be actively engaged in music and that we need to model this behaviour for them. If their brains are used to music being a constant background noise, we need to re-train them in a sense to actively listen and analyze music in the classroom.
I like how the article made the connection between music making and movement for brain development. I’ve noticed with my own students that when we clap, sing, and dance to the beat, they have a greater understanding of more complex rhythms. When they “feel” the groove we become better players collectively. I find the connection between movement, music, and brain activity interesting, and am going to try and incorporate it on a more social level in my classroom.
Sunday, November 13, 2011
Seeing Music?
Saturday, November 12, 2011
The structural neuroanatomy of music emotion recognition: Evidence from frontotemporal lobar degeneration
Reference:
Rohani, Omar, Susie M.D. Henley, Jonathan W. Bartlett, Julia C. Hailstone, Elizabeth Gordon, Disa A. Sauter, Chris Frost, Sophie K. Scott, and Jason D. Warren. "The structural neuroanatomy of music emotion recognition: Evidence from frontotemporal lobar degeneration." Neuroimage 2011, June 1; 56(3): 1814-1821.
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3092986/?tool=pmcentrez
Summary:
Despite growing interest in the neurobiology of music, the brain mechanisms that are critical for processing emotion in music remain incompletely understood. Music is universal and highly valued for the powerful emotional responses it engenders: indeed, music activates brain circuitry associated with pleasure and reward and musical emotion judgments and brain responses are consistent amongst members of a musical culture. Certain music can specifically induce an intense arousal response in normal listeners, and this response is mediated by brain structures such as the amygdala and insula that have been implicated in other kinds of salient emotional stimuli. Deficits of musical emotion comprehension have been reported following focal damage of these same structures, located in the medial prefrontal and anterior temporal lobe.
Frontotemporal lobar degeneration (FTLD) is the name for a group of clinically, pathologically and genetically heterogeneous disorders associated with atrophy in the frontal lobe and temporal lobe of the brain. In the over 65 age group, FTLD is probably the fourth most common cause of dementia after Alzheimer’s disease, dementia with Lewy bodies and vascular dementia. Patients with FTLD frequently exhibit derangements of complex social and emotional behaviour. From a clinical perspective, investigation of musical emotion processing and its cerebral associations in FTLD has the potential to improve the understanding of the disease’s phenomenology, and the intrinsic network connectivity in the working brain.

A human brain showing frontotemporal lobar degeneration.
The idea behind this research was to investigate critical neuroanatomical associations of emotion recognition from music using FTLD as a disease model of brain network breakdown. The research included 26 patients with FTLD and 21 healthy control subjects with no history of neurological, or psychiatric illness. Recognition of four emotions (happiness, sadness, anger, and fear) from music, facial expressions and nonverbal vocal sounds was assessed using a procedure in which subjects were required to match each target stimulus with the most appropriate verbal emotion label in a four-alternative-forced-choice model. The music stimuli were short (approx. 11 s) non-vocal (orchestral and chamber) excerpts drawn from the Western classical canon and film scores. MR brain images were acquired in all FTLD patients at the time of behavioural testing, as well as voxel-based morphometry, a neuroimaging analysis technique that allows investigation of focal differences in brain anatomy.
On neuropsychological evaluation, patients with FTLD showed deficient recognition of canonical emotions (happiness, sadness, anger and fear) from music as well as emotional signals conveyed by facial and vocal expressions compared with healthy control subjects. Impaired recognition of emotions from music was specifically associated with grey matter loss in a distributed cerebral network including insula, orbitofrontal cortex, anterior cingulate and medial prefrontal cortex, anterior temporal and more posterior temporal and parietal cortices, amygdala and the subcortical mesolimbic system. This network of the brain is essential for recognition of musical emotion that overlaps with brain regions previously implicated in coding emotional value, behavioural context, conceptual knowledge and theory of mind. The study also found that amygdala damage was associated with impaired emotion recognition only from music, as opposed to emotion recognition of facial and verbal expressions.
Reflexion:
The ability that music has to affect and manipulate emotions and the brain is undeniable, and yet largely inexplicable. This research identified regions of the brain associated with music emotion recognition, including insula, orbitofrontal cortex, anterior cingulate and medial prefrontal cortex, anterior temporal and more posterior temporal and parietal cortices, amygdala, and striatum. Identifying the neural mechanisms of musical emotion helps us understand how the brain codes emotional value, and how emotional signals acquire meaning.
Following a similar idea, Petr Janata, associate professor of psychology at UC Davis' Center for Mind and Brain, mapped the brain activity of a group of subjects while they listened to music, and found that the region of the brain where memories of our past are supported and retrieved also serves as a hub that links familiar music, memories and emotion. His research may help to explain why music can elicit strong responses from people with Alzheimer's disease. The hub is located in the medial prefrontal cortex region — right behind the forehead — and one of the last areas of the brain to atrophy over the course of the disease.
In Rohani & al.’s study, subjects with frontotemporal lobar degeneration did not respond well to recognition of emotion in music, unlike Alzheimer’s patients in Janata’s study. This was caused by grey matter loss, including the medial prefrontal cortex region, which is linked to memories and emotion. Does memory affect music emotion recognition, or is it just contained in the same medial prefrontal cortex region as is emotion? How does music succeed in prompting emotions within us? And why are these emotions often so powerful?
Thursday, November 10, 2011
Images of Sonic Objects
Godøy, R. I. (2010, April). Images of sonic objects. Organised Sound, 15(1), 54-62. Cambridge University Press. Retrieved October 10, 2011, from Scholars Portal Journals
http://resolver.scholarsportal.info.myaccess.library.utoronto.ca/resolve/13557718/v15i0001/54_ioso
Summary:
Largely based on the theories of Pierre Schaeffer in his Traité des objets musicaux (1966), but also drawing on more recent evidence from the study of musical imagery and support from the theory of embodied cognition, Rolf Inge Godøy, Professor at the Department of Musicology, University of Oslo, argues that the “sonic object” is the most significant timescale of music with regard to human’s ability to form stable memory images of music (sonic images) from continuous sound.
First, Godøy gives some useful background information on musical imagery, which is defined as the “mental capacity for imagining musical sound in the absence of a directly audible sound source”. Placing musical imagery in the broader context of mental imagery, he explains that there is generally a “functional equivalence” between real-world perception and action and imagined perception and action. (For example, recalling the last verse of a song would take longer than the first verse because people usually scan through the song from the beginning.) Furthermore, neuroscientific research shows that mental imagery and real perception and action share much of the same neural substrate. Of particular interest in musical imagery is that auditory and motor imagery seem to be bidirectionally linked. (For example, when professional pianists listen to piano music, the motor areas of the brain are also activated. Vice versa, when the pianists see silent piano performance actions, they also mentally hear the music associated with those actions.) Then, putting musical imagery in the perspective of embodied cognition, which sees perception and cognition as intimately linked with sensations of movement, Godøy argues that body movements are integral to music and that sound-events should be “understood as included in some kind of gesture trajectory”.
All of the above background information helps to prepare the reader for Godøy’s ideas about the nature of sonic objects, which he defines as “holistically perceived fragments of sound, typically with durations in the 0.5 to 5 seconds range”. He justifies this timescale by citing research that shows that listeners can generally recognize salient musical features, such as style, rhythm, texture/timbre, modal/tonal features, and expressivity, within this 0.5 to 5 seconds range. He then points out that theories of memory support the idea of sonic objects as coherent chunks of sound that are perceived and imagined in the present moment (in a series of “now-points”). In this way, an entire piece of music is basically a chain of sonic objects perceived and imagined chunk-by-chunk, moment-by-moment. Godøy describes three types of sonic objects: 1) Impulsive, meaning abrupt attack followed by decay, 2) Sustained, and 3) Iterative, meaning a quick series of fluctuations (e.g. tremolo). Given the integral sound-gesture link in the embodied perspective, he remarks that the three types of sonic objects correlate well with impulsive, sustained, and iterative body gestures. And given the bidirectionality between motor and auditory imagery, Godøy believes the “kinematics and dynamics of sound-related actions can create images of sonic objects”, which carries the implication that action imagery can actually enhance musical imagery and, therefore, can potentially be applied in various contexts, such as musical practice, research, and education.
Reflection:
Though slightly difficult for me to digest, I still found this journal article quite fascinating. Having read a chapter titled “Imagined action, excitation, and resonance” by Godøy (2001) in a book called Musical imagery, which argues that “images of sound-producing actions… can enhance [the] capacity for imagining sonorous qualities” (p. 237), I was curious to find out if Godøy has written anything else on this subject more recently. As it turned out, he indeed has, and I chose this article because it offers more up-to-date information on musical imagery, a topic that I am deeply interested in.
First of all, I was not surprised at all to discover that auditory and motor imagery are linked; I can relate well to the experience of having the urge to move my fingers and “play along” when listening to other pianists performing pieces that I am acquainted with. Being a performer, I have absolutely no doubt that body movements are integral to musical experience. But Godøy’s suggestion that there is an important gestural component to sound would still have seemed a little strange to me had I not taken a course in conducting two years ago, which certainly made me much more aware of how gestures can accurately represent various sound qualities (with a lot of practice, of course).
What impressed me the most about this article was the fact that something as private and seemingly unobservable as imagery could be systematically studied and theorized upon so extensively. I think that Godøy backs up his argument about sonic objects convincingly. What I am primarily interested in, however, is whether action imagery would really prove effective in developing musical imagery in the context of mental practice, as his view implies. Up till now, I have rarely employed the strategy of mental practice myself. But I have always been taught that I must first know what kind of sound I want (in my “inner ear”) before I can experiment with various ways of pressing the keys that would get me closer to realizing that sound. So it seems to me that the music should come first and the action subservient to it. Nevertheless, I suppose that after some physical practice, the sound would become inseparable from the action associated with it, and, at this point, action imagery would be effective in bringing forth musical imagery. So perhaps one needs a certain amount of physical practice on a particular piece before action imagery can be used? Or maybe it would simply be best for one to start developing mental practice skills early on in one's training?
Reference
Godøy, R. I. (2001). Imagined action, excitation, and resonance. In R.I. Godøy, & H. Jørgensen (Eds.), Musical imagery (pp. 237-250). Exton, PA: Swets & Zeitlinger Publishers.
Wednesday, November 2, 2011
Memoirs of an Addicted Brain
ISBN 978-0-385-66925-2
It is a known fact that many musicians struggle with drug addictions. In fact, yesterday in the Ottawa Citizen, Phil Dwyer, saxophonist/pianist/composer candidly describes how he has struggled with serious addiction and mental health issues. http://blogs.ottawacitizen.com/2011/11/01/the-phil-dwyer-interview-part-iv