Sunday, October 16, 2011
Dance in the Piano Studio
From singing to speaking: facilitating recovery from nonfluent aphasia.
Reference:
Schlaug, Gottfried, Andrea Norton, Sarah Marchina, Lauryn Zipse, and Catherine Y Wan. "From singing to speaking: facilitating recovery from nonfluent aphasia." Future Neurology Sep. 2010; 5(5): 657-665.
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2982746/?tool=pubmed
Summary:
Aphasia is an impairment of language ability that ranges from having difficulty remembering words to being completely unable to speak, read, or write. This disorder usually develops quickly as a result of head injury or stroke, but can develop slowly from a brain tumor, infection, or dementia. Of the estimated 750,000–800,000 new stroke cases occurring in the USA each year, approximately 25–50% present with some form of aphasia. Nonfluent aphasia is caused by damage to or developmental issues in anterior regions of the brain, including the left posterior inferior frontal gyrus known as Broca’s area.
Recovery from aphasia can happen in two ways using a recruitment process, which is an increase in the response to a stimulus owing to the activation of additional receptors, resulting from the continuous application of the stimulus with the same intensity. The first type of recovery consists of the recruitment of perilesional brain regions in the affected hemisphere, with variable recruitment of right-hemispheric regions if the lesion is small. The second type of recovery consists of the recruitment of homologous language and speech-motor regions in the unaffected hemisphere if the lesion of the affected hemisphere is extensive. Patients with large left-hemispheric lesions that result in severe nonfluent aphasia typically do not show a good natural recovery nor do they appear to be as responsive to traditional speech therapy methods as patients with smaller lesions or other types of aphasia.
Melodic intonation therapy (MIT) is an intonation-based treatment method for nonfluent or dysfluent aphasic patients that was developed in response to the observation that severely aphasic patients can often produce well-articulated, linguistically accurate words while singing, but not during speech. The intonation works by translating prosodic speech patterns (spoken phrases) into melodically intoned patterns using just two pitches. The higher pitch represents the syllables that would naturally be stressed (accented) during speech. Compared with nonintonation-based speech therapies, MIT contains two unique components: the melodic intonation (singing), with its inherent continuous voicing, and the rhythmic tapping of each syllable (using the patient’s left hand) while phrases are intoned and repeated.
In one of their previous studies, the authors compared two patients with similar speech output impairments and similar lesion sizes. One was subjected to MIT and the other to a control intervention termed ‘speech repetition therapy’. Both interventions yielded significant improvements in propositional speech that generalized to nonpracticed words and phrases, but the MIT-treated patient gains surpassed those of the control-treated patients. Since MIT incorporates both the melodic and rhythmic aspects of music, it may be unique in its potential for engaging not only auditory–motor regions on the right but also nonlesional regions in the affected left hemisphere. The following image shows diffusion tensor imaging scans of a patient before and after an intense course of melodic intonation therapy.
There is a visible increase in the size (number of fibers and volume of tract) of the right arcuate fasciculus after therapy (B).

Research has shown that both components of MIT are capable of engaging fronto–temporal regions in the right hemisphere, thereby making it particularly well suited for patients with large left hemisphere lesions who also suffer from nonfluent aphasia. Treatment-associated neural changes in patients undergoing MIT indicate that the unique engagement of right-hemispheric structures (e.g., the superior temporal lobe, primary sensorimotor, premotor and inferior frontal gyrus regions) and changes in the connections across these brain regions may be responsible for its therapeutic effect. However, despite several small case series, the efficacy of MIT has not been substantiated and its neural correlates remain largely unexplored. Research
Reflections:
The research conducted by Gottfried Schlaug & al. explores new approaches to traditional therapy for patients with nonfluent aphasia. It is encouraging to discover that melodic intonation therapy engages the right fronto–temporal network through two unique components: melodic intonation and left-hand tapping. This leads to improvement in spontaneous language skills, therefore increasing the recovery rate of patients. Although approximately 1,000,000 people in the USA suffer from aphasia, reliable and standard treatment methods have not been established for this disorder. More case studies have to be conducted on the efficacy of MIT, as well as understanding the specific differences within the brain between singing and speaking, in order to implement this therapy as a standard treatment process.
As a voice performer, I always find that it is much easier and faster to learn the poetry of a song by singing it and taping the rhythm at the same time. I often tap the rhythm by clapping the hands, using conducting gestures, or even dance if it is a dance rhythm. It seems that the more body parts you have working in synchronism, the faster the brain memorizes the musical patterns. When reading this article, I was not surprise to learn that MIT was proven to be a more effective therapy for patients with nonfluent aphasia, as opposed to simple speech therapy. If a patient has a lesion in the speech area of the brain, it will be difficult to stimulate that area with speech, since it is this specific area of the brain that has been affected. By contrast, singing stimulates more areas of the brain, therefore implicating regions of the brain that do not have lesions. This seems to be the reason why the recovery process is more effective when singing for patients with nonfluent aphasia.
Brain-Compatible Music Teaching Part 2: Teaching “Nongame” Songs – Susan Kenney, 2010 23: 31General Music Today
Summary
The article begins with a summary of the previous article entitled “Brain-Compatible Music Teaching”. She revisits the idea of whole song learning instead of breaking it down into phrases and students echoing the musical material. This methodology allows the brain to make meaningful connections through patterning when singing.
In this article, the author explores the brain-compatible assumptions that are consistent with the way we learn music. Firstly, in order to learn a song the brain must hear it many times. This is validated through popular music on the radio, where the listener starts to sing along after multiple listenings. Secondly, the repetition must be meaningful to the learner. This means that students learn songs best through games or activities instead of simply singing. Yes students make take longer to learn the song itself, but their learning will be more meaningful in the end with a focus on the process instead of the product. Finally, the best way to learn a song is through whole song learning, which encourages the brain to find meaningful patterns within parts of the whole.
Children may learn music in these three ways, but what about songs that do not easily lend themselves to actions or games? For these songs, educators can encourage movement to the beat. As the teacher models the whole song, encourage tapping games on different parts of the body. After students are comfortable with the beat, start to develop skills through metre by modeling tapping with an accented beat and conducting a pattern to the song, all while singing the whole song. Remember to take time for repetition, as the brain needs to process all of the new movements along with the melody, and do not be discouraged if some students have not yet sung along with the tune.
Another method of instruction is antiphoning, where the teacher begins the phrase and drops out as the student finishes it. This is more effective then echoing because it encourages students to finish the pattern rather then mirror it. The entire lesson must be rather brief to keep the students attention, but it can be continued next class with the following additions.
One is the use of instruments, where students are invited to play the drum on the accented first beat and move to the weaker beats. Or, if drums are not available, students can play along with the rhythm on rhythm sticks. Auditory Figure-Ground is the next technique used. Here the teacher gives clues about an important word in the song and encourages students to discover it. Once it is discovered, the students start to recognize similar patterns within the music. This exercise could also be done with rhythm patters, where the teacher shows a pattern in the music and students must hunt to find where it occurs again. Finally, you need to give students an opportunity for solo singing whenever possible so you know where they need help.
An important aspect of brain-compatible teaching is how many different skills students can build through learning a song. Instead of just reaching one expectation, the student is achieving multiple expectations at the same time. As long as we remember the cycle of learning a new song (sensing information, integrating information into meaningful wholes, and transforming the meaningful wholes into action) then we can use this brain-compatible teaching technique in each of our classes.
Reflection
Since reading the first article in this series I have started to incorporate whole song learning in my primary music classroom. Students were frustrated at first because it was not simple echoing, but they were also engaged in learning to “figure out” the patterns within the music. There were points however where I reverted back to echoing to correct mistakes and secure pitches. Now I am going to incorporate some of these techniques, such as antiphoning and auditory figure-ground, in place of simple echoing to check for understanding.
I’ve already begun incorporating movement through beat and rhythm in my classes and encourage students to move along with the music. I also emphasize the accented beat one through use of passing a bean bag around the circle, shakers, and tennis balls bouncing on the down beat. The students have really enjoyed these activities and my next step is to incorporate accapella singing during them. We’ve started to locate patterns in the music already, but it’s mostly teacher lead at this point. I think my next step will be asking the students to find and identify the rhythmic and/or melodic patterns as suggested in the article.
I enjoyed reading this article because it already aligns with my way of teaching. I don’t have to question her motives and whether or not the methods work because I’ve seen them in action. I like that I can pull new, practical ideas from this article that encourage music literacy with scientific support. In my music classroom I try and align our topics with our school-wide math and language program to re-enforce those concepts while teaching musical ones. The response from my colleagues has been positive as the students demonstrate their understanding in their homerooms. I look forward to adding these new techniques to my repertoire and discovering more in the classroom.
Saturday, October 15, 2011
Uploaded by TEDtalksDirector on Mar 13, 2008
http://www.ted.com Neuroanatomist Jill Bolte Taylor had an opportunity few brain scientists would wish for: One morning, she realized she was having a massive stroke. As it happened -- as she felt her brain functions slip away one by one, speech, movement, understanding -- she studied and remembered every moment. This is a powerful story about how our brains define us and connect us to the world and to one another.
Reflection:
Over the past number of weeks in our "Music and Brain" class, we have been exposed to a whole new world of knowledge focused primarily on the brain and our obsession as humans to understand its mysterious qualities and ways. Jill Bolte Taylor takes you in, to her personal space, a narrative story of her moments before, during and after having a stroke. By the end of her story, you'll have a deep sense of the uniqueness of both the right and left hemispheres of the brain. Although a very serious medical situation for anyone, she presents her experience of a stroke using humour at her stories core. A spiritual person, she conveys a deep sense of grace and apprecation for the gift that life is. Towards the end of her presentation, she says that it was during her stroke that she found nirvana - that transcendent state in which there is neither suffering, desire, nor sense of self, and the subject is released from the effects of karma and samsara. In hope, she suggests that all of us can find this nirvana too, and that one doesn't need to have a stroke to feel it or find it.
While music isn't mentioned in this presentation, as a musician, I found her explanation of the right and left brain to be informative and 'eye-opening.' When I sit at the piano and compose a piece of music, for worship, for a wedding, an anniversary or a memorial service, I lose the sense of time and I am inspired and energetic throughout the process. My right brain appears to be guiding my creativity and sense of accomplishment. At times, what feels like 30 minutes, in actual time is about 4 hours. During this creative time, I believe that I sense nirvana - it almost feels like an out of body experience. Contrary to this feeling of freedom, is the frustration I feel when practicing on the 5-manuel organ at Metropolitan United Church. A late starter on this instrument, I have been studying for a short 3 years. For me, my time spent on the instrument is one of frustration, focus, fatigue, with few moments of feeling satisfied. I have no sense of nirvana! It is clear, that during the times that I spend studying the preludes and fugues of Bach, my left hemisphere is doing its best to manage my music-making; with feet playing the correct pedal notes, my hands on different keyboards articulating appropriately, my eyes focused on the complex page of Bach's notation and my ears evaluating whether I am playing correctly or not. It all seems very technical!
Jill Bolte Taylor, in her presentation for TEDtalks has brought some clarity to my understanding of how my brain works when I am making music! Her presentation really is a "stroke of genius!"
Wednesday, October 12, 2011
How one’s favourite song activates the reward circuitry of the brain: Personality matters!
Axmacher, N., Montag, C., & Reuter, M. (2011). How one’s favorite song activates the reward circuitry of the brain: Personality matters! Behavioural Brain Research 225, 511-514. Retrieved October 2, 2011, from Scholars Portal Journals
<http://resolver.scholarsportal.info/resolve/01664328/v225i0002/511_hofsatcotbpm>
Summary:
Researchers Christian Montag, Martin Reuter, and Nikolai Axmacher at the University of Bonn in Germany investigated two intriguing questions in the neuroscience of music and emotions. First, they wanted to compare brain activity when one listens to one’s favourite song and when one listens to one’s most unlikeable song. Second, they wanted to find out how this brain activity might relate to one’s personality traits, particularly the traits of “self-transcendence” and “absorption abilities”.
The researchers conducted their study on 33 undergraduate psychology students, who first had to complete two questionnaires for personality assessment: the Temperament and Character Inventory (TCI) and the Tellegen Absorption Scale. Then, the participants listened to their favourite and most unlikeable songs for three minutes each via earphones in the fMRI machine.
Citing the results of another study that linked the activity of the nucleus accumbens (ventral striatum) to the peak of experienced positive emotionality and the activity of the caudate nucleus to the anticipation of that emotional peak, the researchers hypothesized that there would be substantially increased activity of these areas when listening to the self-selected pleasant song as compared to the self-selected unpleasant song. The statistical fMRI analyses confirmed this. There was significant activation of the insula and the cuneus as well.
The researchers also hypothesized that participants with high scores in the traits of absorption (according to the Tellegen Absorption Scale) and/or “self-forgetfulness” (a subscale of the “self-transcendence” trait in the TCI) would demonstrate higher activity in the ventral striatum when listening to their favourite songs. But surprisingly, the results revealed a negative correlation between “self-forgetfulness” and ventral striatum activity. That is, people who described themselves as being prone to absorption by music or other arts were actually not so absorbed while listening to their favourite songs. The researchers explained that perhaps these individuals needed another surrounding – other than a noisy fMRI setting – or needed to feel more intensity and closeness to the arts to achieve the state of absorption.
Reflection:
I am really fascinated by the results of this study. In my opinion, the fact that the results indicated a negative correlation between “self-forgetfulness” and ventral striatum activity, even though the researchers expected a positive correlation between the two, perhaps points to the inherent difficulty of conducting a scientific investigation of such a subjective matter as individual emotional responses to music.
I think that there are many factors involved here. First of all, I do agree with the researchers that some people could find a noisy fMRI setting distracting, thus preventing them from becoming absorbed in the music. But I am not so sure that there is a clear connection between the tendency towards self-forgetfulness and the need for a different surrounding to become immersed in music. I think that listening habits simply vary among individuals. Some people listen to their MP3 players in noisy public spaces and still seem to be really absorbed, as they tap their feet, nod their heads, or hum along. Others prefer to enjoy music in a quieter, more private space; perhaps alone at home. I do not believe that those who require a more peaceful environment are necessarily less or more self-forgetful. For instance, certain individuals, regardless of whether they are highly self-forgetful or not, may just happen to have very sensitive hearing and simply cannot enjoy music in a noisy surrounding, even if they might love to otherwise. I would have liked to see what sort of questions were on the TCI questionnaire and what my “self-forgetfulness” score would be. (Unfortunately, I could not find a (free) online version of the TCI.)
More importantly, it seems to me that there is a difference between being moved by the music and being moved by the music to an emotional peak, which is what ventral striatum activity is supposed to indicate. I would imagine that reaching an emotional peak is a gradual process that might take longer or shorter depending on the individual. This was not taken into account in the present study, since each listening session invariably lasted three minutes.
Related to this is the fact that some music just requires more time to unfold. What if my favourite piece of music is, say, Barber’s Adagio for Strings? The duration of this piece is approximately ten minutes. The music gradually builds to a climax around seven minutes into the piece and the ending fades away. Listening to just the first three minutes might be insufficient to give me the experience of an emotional peak. The same result would perhaps be expected even if I were to listen to three minutes of music around the climactic moment, as this excerpt would be completely out of context; a peak cannot exist without the build-up to it.
Nevertheless, as a performer, I am very intrigued by the link of ventral striatum activity to the peak of experienced positive emotionality. So instead of just having participants listen to music, in the future, I hope that it would be possible to conduct a study that measures the ventral striatum activity of performers and listeners in a setting that more closely resembles a concert. I would be especially curious to know whether there would be high ventral striatum activity in both performers and listeners at the same moments during the performance. Put another way, would the listeners be more likely to become absorbed by the music when the performers themselves are? Or would the listeners be more likely to achieve the state of musical absorption when the performers are more objectively in control of their performance?
Tuesday, October 11, 2011
Still a Performer
Monday, October 10, 2011
A Mind for Music
Reference: http://www.youtube.com/watch?v=AyY1ul_DbcQ
Nova Short: Inside Oliver Sacks' Brain (PBS)
This is a 4:23YouTube taken from a longer 45 minute DVD: Nova's Musical Minds, June 30, 2009
PBS #WG43209
Summary:
Columbia University neuroscience researchers Hal Henkel and Joy Hirsch design a test to reveal if Sacks’ brain loves Bach as much as he does. With a device to rate his emotions in hand, a scanner will record Sacks’ brain activity as he enters the imaging machine. He hears two pieces of music, one by Bach and one by Beethoven. The researchers have selected musical samples that share certain qualities. For example, both pieces are choral works, similar in tempo and mood. When asked to respond to the music, Sacks replies that the Bach piece “blew me away” while the Beethoven “left me flat”. In fact, the scan confirmed those feelings. The brain scan of Sacks’ responses to Bach showed that many areas of the brain became activated while listening, and particularly the right amygdale, vital to processing emotion. The brain scan of Sacks’ responses to Beethoven scarcely lit up.
Reflection: