Say what?

Not specifically related to Parkinson’s, this study looked into whether providing musical training to older non-musicians would have an effect on the experimental task.

Experienced musicians outperform non-musicians in understanding speech-in-noise (SPIN). The benefits of lifelong musicianship endure into older age, where musicians experience smaller declines in their ability to understand speech in noisy environments…  results suggest that short-term musical training in older adults may enhance neural encoding of speech, with the potential to reduce age-related decline in speech perception. [emphasis added]

The effects of short-term musical training on the neural processing of speech-in-noise in older adults

… these findings suggest that music training enhances neural responses to speech in speech-motor and control regions.The absence of training-related interactions with noise level suggests that the benefit of music training is related to processing speech in general, and not separating it from background noise;

– BUT analysis of functional Magnetic Resonance Imaging showed electrical activities in a couple of areas of the brain related to speech perception for those who were in the musical training group.

Obviously, “further research is needed,” as the saying goes, and perhaps for longer periods of time.

Whatever type of musical training one chooses, singing, keyboard, string, or wind instruments, there’s another saying that applies to that as well: “It may not help, but it can’t hurt.”

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Music on the brain

 

Why do we like some kinds of music but not others?

Back in college, Jerry Coker (who taught jazz improvisation, said that we tended to like music that was not entirely predictable, but that a certain level of surprise increased our enjoyment of jazz. Music that was too unpredictable led to diminished enjoyment. Now, a study has been done that mathematically analyzed people’s enjoyment of musical snippets, and basically confirmed what Jerry taught us. Surprise us every now and then, but don’t make us feel like we’re stupid and can’t guess the next note that’s coming along.

Here’s the article with a reference and link to the original research (if you can afford it): The brain’s favorite type of music

Dopamine’s role in music enjoyment.

In this study, researchers looked at people’s responses to music under three separate conditions. One group received levodopa, another received risperidone, a dopamine antagonist, and a third group received a placebo. Folks in the levodopa group reported and were recorded as having higher levels of enjoyment, and those taking the antagonist, lower levels of enjoyment. Each group[ went through all the conditions, separated by a week in between sessions. The results clearly indicate that dopamine is the brain is related to musical pleasure. Now, if  playing and singing music promote an increase of dopamine in the brain, we have a prescription for Parkinson’s Disease (and depression) that can’t be beat (although it can be counted off).

Dopamine role in musical pleasure    

the actual research article which appears to be available in its entirety online: Dopamine modulates the reward experiences elicited by music

 

 

 

Oh, I’m walking to New Orleans… or maybe the Outback

Here’s a conference poster reporting some recent research on music and gait… and the effects of dual tasks on Parkinson’s Disease diagnosed people. It seems that all the researchers are in Australia, hence the title to this post.

Walkin’ and Talkin’: dual task effects on Gait

They had a few different tasks – just walking, walking while saying all the words one could think of starting with the letter (name a letter), and walking while counting in intervals. The conclusion was that Dance For Parkinson’s® had a positive effect. Naturally, they called for more research with larger numbers of participants.

In the meantime, as I always say: Don’t stop moving to the music!

 

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We’ve got the beat… or maybe not

Research into rhythmic deficits in Parkinson’s:

Previous research has demonstrated that people with Parkinson’s disease (PD) have difficulties with the perceptual discrimination of rhythms, relative to healthy controls…. insight into how people with PD process and perceive rhythm can refine our understanding of the well known problems of temporal processing in the disease

Subjective judgments of rhythmic complexity in Parkinson’s disease

In this study, conducted over the internet,

People with PD rated all rhythms as more complex across tempi, with significant group differences in complexity ratings at 120 and 150bpm, but not at 90bpm. Our analysis found a uniform elevated baseline for complexity judgments in the PD-group, and a strong association between the two groups’ rank-ordering the rhythms for complexity. This indicates a preserved ability to discriminate between relative levels of complexity. …we speculate that Parkinson’s disease affects judgment of complexity but not judgment of likeability.

So if I understand this correctly, folks with PD find rhythms, especially faster rhythms, to be more complex than do “normal” people.

As for me, I will still prefer syncopated rhythms, especially calypso, maybe because I heard them when I was too young to remember. Military marches in 2/4 time no longer appeal to me. In fact, I believe that the march that I wrote in high school during band camp, “To The Rear March, ” had a syncopated melody, but I can’t swear to it. Guess I’ll have to dig up the old sheet music and take a look.

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Oh, the title is long, and I can’t get through it in one breath

Music and Metronomes Differentially Impact Motor Timing in People with and without Parkinson’s Disease: Effects of Slow,Medium, and Fast Tempi on Entrainment and Synchronization Performances in Finger Tapping, Toe Tapping, and Stepping on the Spot Tasks

Well, the title is a mouthful, isn’t it?

Basically, this study looked at the different effects of external Rhythmic Auditory Stimulation (RAS) on folks with Parkinson’s Disease (PD) compared with folks without PD, using different tempi and different ways to observe the ability to synchronize with the beat.

Although this blog has noted a previous study which indicated that an internal RAS (e.g., singing a song) was superior to external RAS to immprove one’s gait, I have received feedback from several caretakers that their person with PD can not sing or carry a tune, but has been able to improve gait and reduce freezing with external RAS. Thus, this study should be of interest.

Bottom line: This study showed that music was superior to a metronome stimulus in “entrainment” of the motor systems involved after the cue was removed. (look up entrainment in biomusicology on Wikipedia for a full description of what it means). In other words, once a body gets synchronized to the musical RAS, they can continue to walk at the same pace as if the music were still playing.

Of course, there is more to it than this brief report. For that, I’ve provided the link to the full article above.

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Kazoos are good for youse

All of the following links have to do with improving voice for PD folks, and also the use of kazoos.

I used to write for this student newspaper:

Music therapy helps tackle Parkinson’s (The Miami Hurricane July 5, 2019)

This is a fairly long honors project paper reviewing voice therapy techniques:

Voice Therapy Techniques in Combination with the Group Therapy Setting for Individuals withParkinson’s Disease

Not necessarily for PD, but the study used spectrographic analysis to measure the improvement in voice in addition to qualitative results.

Finger Kazoo: spectrographic acoustic modifications and vocal self-assessment

I might have already mentioned this in a previous entry, but kazoos were used:

Individual Therapeutic Singing Program for Vocal Quality and Depression in Parkinson’s Disease

Vocal warmups for the individual: Vocal warmups

Vocal warmups for the group: Anatomy of a choral warmup

 

I got rhythm, I got music…

Put together a slide presentation trying to synthesize some of the research on Parkinson’s Disease (PD) and the possibility of music, singing, playing musical instruments, and dance as means to counteract the progressive effects of dopaminergic neurons lost in the course of PD. Due to the length of the presentation and the limits of my computer resources, the narration seems to have gotten a little out of sync towards the end. But it is what it is, as they say: (note: added a PDF file of the presentation on 6-9-19 to make it easier to download and view)

Rhythm, Music, Singing, Dancing and the Brain

2019-06-05-Rhythm Music Singing and the brain  (PDF file)

and an even smaller file with all the blue and yellow intact (6-15-2019):

Rhythm Music Singing Dancing and the Brain

Dance, aerobic exercise and musical training

Today we have a couple of links to articles on the effects of dance and music:

Effects of Dance/Movement Training vs. Aerobic Exercise Training

Abstract only, but the results appear to be in favor of Dance Movement Therapy (DMT) as positive. Aerobic Exercise Therapy (AET) improved cardiovascular health, though, so both aerobic and dance movement therapies should be used for health.

Executive and non-executive composite scores showed a significant increase post-training (F(1,37)=4.35, p=.04; F(1,37)=7.01, p=.01). Cardiovascular fitness improvements were specific to the AET group (F(2,38)=16.40, p<.001) while mobility improvements were not group-dependent (10m walk: F(1,38)=11.67, p=.002; Timed up and go: F(1,38)=22.07, p<.001).
Results suggest that DMT may have a positive impact on cognition and physical functioning in older adults however further research is needed. This study could serve as a model for designing future RCTs with dance-related interventions.

Next, a short article on the effects of musical training on brain plasticity.

The-Effects-of-Musical-Training-on-Brain-Plasticity-and-Cognitive-Processes

The link between musical training and its effects on brain plasticity have been studied since the early 20thcentury neuroanatomy research of Ramon y Cajal. In recent decades, studies have observed the contributions of musical training in enhancing auditory, motor, and language processing areas of the brain. The ability of musical training to impact behavior and critical thinking skills may also open the door for new methods of combating age-and illness-related cognitive decline(emphasis added)

In conclusion, whether or not one has a neurodegenerative disease or not, it is good advice to do aerobic exercise for the heart, dance for the mobility, and learn or continue to play a musical instrument to keep the brain plastic and elastic and fantastic.

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Searching for the secret chord…

These came out of a search, so might have been previously covered in a post:

This review covers music performed in groups and is not directly related to Parkinson’s: Collaboration and improvisation

Music performance is inherently social. Most music is performed in groups, and even soloists are subject to influence from a (real or imagined) audience. It is also inherently creative. Performers are called upon to interpret notated music, improvise new musical material, adapt to unexpected playing conditions, and accommodate technical errors. The focus of this paper is how creativity is distributed across members of a music ensemble as they perform these tasks

This article does cover Parkinson’s – singing as a way to help with vocal issues and depression. Positive results, but not a randomized control type experiment, so conclusions are tentative:

Individualized singing program

Here’s an interesting experiment in which participants are asked to improvise music which reflects varied feeling states. Not sure how the results can be applied, except that creating music or dance/movement to express emotions is probably of benefit to the brains of people with Parkinson’s, regardless of the strength of the research.
Effects of music making

This study has gotten some wide distribution – on how musicians (people who play an instrument) react more quickly than people who do not. This article digest is from Science Daily (January 2017)

Play an instrument?

“fine” as they say on the sheet music.

Dance and exercise – a study and a publications review

Not much new here – more evidence that dance exercises and physical exercise in general, is beneficial for people with PD.

Shall We Dance – master’s thesis  by Brittni Lynn McAlister, University of North Colorado

 In the words of one participant, the dance classes have been “. . . completely life-changing.”

Systematic review of exercises for Parkinson’s

This review revealed that people with Parkinson’s disease viewed physical activity as an enjoyable and positive experience, which aided with control of their symptoms and enhanced their wellbeing and quality of life.