Interested in becoming a student assistant at MCG?

 

The Music Cognition Group (MCG) searches for an enthusiastic and well-organized personal assistant (PA) for the Academic Year 2013/14. For more information and detailed instructions on how to apply see here. Deadline for applications is 01 July 2013.

Does music make you move?

At TEDxWaterloo 2013 Jessica Grahn – a cognitive neuroscientist working at Western University, Canada – presented an engaging talk about why music moves us, and why picking up the beat might make us unique.
And another video just to ilustrate the point:
N.B. See below some of the studies mentioned in the talk.

Grahn, J., & Brett, M. (2007). Rhythm and Beat Perception in Motor Areas of the Brain Journal of Cognitive Neuroscience, 19 (5), 893-906 DOI: 10.1162/jocn.2007.19.5.893

Patel, A., Iversen, J., Bregman, M., & Schulz, I. (2009). Experimental Evidence for Synchronization to a Musical Beat in a Nonhuman Animal Current Biology DOI: 10.1016/j.cub.2009.03.038

Zarco, W., Merchant, H., Prado, L., & Mendez, J. (2009). Subsecond Timing in Primates: Comparison of Interval Production Between Human Subjects and Rhesus Monkeys Journal of Neurophysiology, 102 (6), 3191-3202 DOI: 10.1152/jn.00066.2009

Managing your talents?

On August 29 and 30, 2013the Conservatorium van Amsterdam, the University of Amsterdam, and VU University will organize the Managing Your Talents conference. This conference makes for a unique gathering of people whose expertise will be called upon to achieve a new standard of educational excellence in the performing arts. It is a must-go for those who are involved with music, dance or theatre, and who seek to share their interest with researchers from a broad range of disciplines, such as performing arts pedagogy, medicine, neuropsychology, brain and cognition sciences, and human motion sciences.

The keynote lecture will be given by Daniel Levitin (professor of psychology and behavioural neuroscience, McGill University, Montréal), Other speakers at this conference include Eckart Altenmüller (music and medicine), Erik Scherder (neuropsychology), Susan Hallam (music psychology and education), and Jacques van Rossum (human motion sciences). The participants will also see examples of teaching and training practices at professional art schools. Updates on the program will follow at intervals.

Updates on the program will follow at intervals, and made available at the conference website: Managing Your Talents.

'Vocal mimicry hypothesis' falsified? [Part 2]

Figure (a) Ai tapped C4, (b) Ai tapped C5, (c) Time sequence of a test trial.

A few entries ago I uploaded a fragment from a study (Hattori et al., 2013) that discusses an intriguing experiment with three chimpanzees (Pan troglodytes) which were trained to tap regularly on a piano keyboard.

While the video below is convincing, the study reports that only one of the three chimps participating in the experiment was able to do the task: a chimp named Ai (See video).  Furthermore, Ai was only able to synchronize with stimuli at a rate of 600 ms (and not at rates of 400 or 500 ms). In addition, Ai did this in reaction (positive asynchrony) and not in anticipation of the beat (negative asynchrony).

This is similar to what has been found in studies with macaques (Zarco et al., 2009; Konoike et al., 2012) that also seem to opt for a strategy of to react instead of anticipating to a regular beat. All this in contrast with humans that can intentionally synchronize their tapping to various rates (ranging roughly from 200 ms to 1800 ms) of a varying rhythmic stimulus (and not simply a metronome) while showing a negative synchronization error, i.e. in anticipation of the beat.

Another point of a more methodological nature is that the experimentators used, next to sound, what they called 'light navigation' (see diagram above), a visual cue for the chimps to 'remind them' of which key to press. While the authors write "it was unlikely that the visual stimuli affected tapping rhythm by chimpanzees" we can not be sure this is evidence for rhythmic entrainment in the auditory domain.
Nevertheless, with behavioral methods that rely on overt motoric responses it is difficult to separate between the contribution of perception and action (beat perception vs beat production). This makes electrophysiological measures (such as event-related potentials) a more direct and hence attractive alternative. The latter method has been shown a worthwhile, non-invasive alternative in studying cognitive and neural processing in primates (see, e.g., Ueno et al., 2009) and it was used recently in a study probing beat perception in macaques (Honing, Merchant et al., 2012).*

And lastly, these and earlier observations have lead to the auditory timing dissociation hypothesis (Honing, Merchant et al., 2012). This hypothesis accommodates the fact that nonhuman primates performance is comparable to humans in single interval tasks (such as interval reproduction, categorization and interception), but differs substantively in multiple interval tasks (such as rhythmic entrainment, synchronization and continuation).

* N.B. We are eager to collaborate with a primate lab that is willing to do such a relatively simple listening experiment using EEG with chimpanzees; Would be great to compare the results we now have for human adults, newborns, and macaques with the perception of Great Apes ! Feel free to email me :-)

Hattori, Y., Tomonaga, M., & Matsuzawa, T. (2013). Spontaneous synchronized tapping to an auditory rhythm in a chimpanzee. Scientific Reports, 3 DOI: 10.1038/srep01566.

Hasegawa, A., Okanoya, K., Hasegawa, T., & Seki, Y. (2011). Rhythmic synchronization tapping to an audio–visual metronome in budgerigars Scientific Reports, 1 DOI: 10.1038/srep00120

Honing, H., Merchant, H., Háden, G., Prado, L., & Bartolo, R. (2012). Rhesus Monkeys (Macaca mulatta) detect rhythmic groups in music, but not the beat. PLoS ONE, 7 (12) DOI: 10.1371/journal.pone.0051369

Thrirty-two metronomes synchronizing?

If you place 32 metronomes on a static object and set them rocking out of phase with one another, they will remain that way indefinitely. Place them on a moveable surface, however, and something very interesting happens.
For more 'variations' see the Ikeguchi Lab, Japan.

Are monkeys capable of rhythmic entrainment?

On Friday 24 May 2013  Hugo Merchant (Institute of Neurobiology, Querétaro, Mexico) will give a CSCA Lecture with the title Neurophysiology of temporal and sequential processing during a synchronization-continuation tapping task. He will present a recent study investigating rhythmic entrainment in Rhesus monkeys (Macaca mulatta).

A recent study has shown that Japanese macaques (Macaca fuscata) are able to spontaneously synchronize their arm movements when they are paired and facing each other, suggesting that monkeys can coordinate their actions in a social setting and establish some level of rhythmic entrainment (Nagasaka et al., 2013; see earlier entry). However, the asynchronies between the pairs of tapping monkeys are positive, largely dependent on the visual input that the other monkey provides, and with little influence on the sounds that the monkeys made when tapping. The question remains of whether more closer human relatives such as the great apes, show a more sophisticated ability for rhythmic entrainment than macaques.

Hugo Merchant will present a recent study in which two monkeys (Macaca mulatta) were trained in a synchronization-continuation tapping paradigm called a synchronization-continuation tapping task (SCT) in which auditory (A) or visual (V) cues were presented to construct the periodic target interval ranging from 0.45 to 1 second. Initially, animals synchronized their arm movements with a sensory cue by tapping on a push-button, followed by self-pacing of the target interval when the metronome was switched-off. In addition, the monkeys performed a single interval reproduction task (SIRT). We recorded the single-cell activity of 1500 neurons from the macaque medial premotor cortex (MPC) during the task performance.

The results suggest that distinct populations of cells in the MPC can encode different temporal and sequential aspects of the SCT and suggest that MPC is part of a core timing network that uses interval tuning as a signal to represent temporal processing in a variety of behavioral contexts where time is explicitly quantified.

Location: room DS.02, REC D, Nieuwe Achtergracht 129 (entrance through REC G, Nieuwe Prinsengracht 130), Amsterdam.

Time: 16:00 - 17:00 hrs, followed by informal drinks. Registration is not necessary.

For more information, see the website of the CSCA.

Nagasaka, Y., Chao, Z., Hasegawa, N., Notoya, T., & Fujii, N. (2013). Spontaneous synchronization of arm motion between Japanese macaques Scientific Reports, 3 DOI: 10.1038/srep01151

Interested in a PhD position at the University of Amsterdam?

Wat maakt ons muzikale dieren? [Dutch]

Dit essay beschrijft een recentelijk ingezette zoektocht over de vraag wat ons muzikale dieren maakt. Wat is er te zeggen over de oorsprong van muziek en muzikaliteit vanuit een biologisch en evolutionair perspectief? Hoe is muziek ontstaan? Is muziek uniek voor mensen, zoals taal dat lijkt te zijn? En zo niet, welke muzikale vaardigheden delen we dan met andere primaten? Het antwoord op deze vragen zal nog veel onderzoek vergen.


Deze voorpublicatie, van een boek dat naar verwachting zal verschijnen in de winter van 2014 bij Nieuw Amsterdam, is een verslag van de eerste stappen die onze onderzoeksgroep zet op dit grotendeels onontgonnen onderzoeksterrein.

Honing, H. (2013). Op zoek naar wat ons muzikale dieren maakt. Gratis download via iTunes (iPad only).

Was Steven Pinker right after all? [Part 2]

At the end of the 1990s, cognitive psychologist Steven Pinker infamously characterized music as “auditory cheesecake”: a delightful dessert but, from an evolutionary perspective, no more than a by-product of language. But Pinker was probably right when he wrote: “I suspect music is auditory cheesecake, an exquisite confection crafted to tickle the sensitive spots of...our mental faculties.” Or, to express his idea less graphically: music affects our brains at specific places, thereby stimulating the production of unique substances that have a pleasurable effect on our mood. However, rather than a by-product of evolution, music or more precisely musicality is likely to be a characteristic that survived natural selection in order to stimulate and develop our mental faculties (cf. Honing, 2011).

Pinker’s idea may actually be a very fruitful hypothesis whose significance has wrongfully gone unacknowledged because of all the criticism it elicited. After all, the purely evolutionary explanations for the origins of music largely overlook the experience of music we all share: the pleasure we derive from it, not only from the acrobatics of making it but also from the act of listening to it.

Last week Science published a study (a follow-up of Salimpoor et al., 2011) in which Canadian researchers were able to show precisely that: Music can arouse feelings of euphoria and craving, similar to tangible rewards that involve the striatal dopaminergic system. They were able to show that intense pleasure in response to music can lead to dopamine release in the striatal system, most notably the nucleus accumbens. And, more importantly, the anticipation of an abstract reward can result in dopamine release in an anatomical pathway distinct from that associated with the peak pleasure itself.

Salimpoor, V., van den Bosch, I., Kovacevic, N., McIntosh, A., Dagher, A., & Zatorre, R. (2013). Interactions Between the Nucleus Accumbens and Auditory Cortices Predict Music Reward Value Science, 340 (6129), 216-219 DOI: 10.1126/science.1231059

Salimpoor, V., Benovoy, M., Larcher, K., Dagher, A., & Zatorre, R. (2011). Anatomically distinct dopamine release during anticipation and experience of peak emotion to music Nature Neuroscience DOI: 10.1038/nn.2726

Honing, H. (2011) Musical Cognition. A Science of Listening. New Brunswick, N.J.: Transaction Publishers.

Interested in the relation between dance and music?

Larry Parsons

On Tuesday 16 April 2013  Larry Parsons (University of Sheffield and Centre de Neuroscience Cognitive, CNRS, Lyon, France) will give a CSCA Lecture with the title Neurobiological Basis of Musical Skills and Dancing. He will present functional neuroimaging data on the brain basis of call/response singing, harmonization, improvisational singing, sight-singing duets, music learning in non-musical adults, and the performance of memorized piano pieces. Also discussed will be the relation between neural systems for melodic and sentential generation, emotional musical experiences, and the brain basis of dancing.

For more information, see the website of the CSCA.

Interested in an Assistant Professorship?

The Faculty of Humanities is searching for two Assistant Professors in Musicology (0.5 fte) in the fields of historical, cognitive or cultural musicology. They should be familiar with recent developments in the methodology of musicology and acquainted with current theoretical developments in their respective field. Experience in musical practice and/or experience with digital media and research tools is desirable.  For more information, see here. Deadline for applications is 17 April 2013.

Hebben dieren vrije tijd? [Dutch]

Tijs Goldschmidt

Op vrijdag 19 april spreekt de schrijver en evolutiebioloog Tijs Goldschmidt de derde Kousbroeklezing uit met de titel Vis in bad. De meeste dieren werken periodiek hard, maar er wordt ook veel gelummeld, gehangen en niets gedaan. Hoe kunnen ze zich dat permitteren? Hebben ze 'vrije tijd' of zijn ze schijnvrij? Een beschouwing over zonnetijd, innerlijke tijd, sociale tijd en vooral vrije tijd bij dieren inclusief de mens.

Tijs Goldschmidt is essayist en bioloog. Zijn bekendste boek is Darwins Hofvijver. Hij publiceerde ook verschillende essaybundels. Hij is advisor aan de Rijksakademie van Beeldende Kunsten en gastschrijver van de UvA-Artisbibliotheek (Bijzondere Collecties). In 2004 was hij een van VPRO's zomergasten.

Zie hier voor meer informatie.

Is music a supernormal stimulus?

Fragment of an interview of Richard Dawkins with Steven Pinker for "The Genius of Charles Darwin" (UK Channel 4 Television, 2008).

Pinker explains again why music is not an adaptation but should be seen as a kind of 'supernormal stimulus' - adding the phrase "people in music hate this theory...".

[non-flash version: .mp4,.3gp]

For a full one hour of uncut footage see here.

Honing, H. (2011). Muziek is geen luxe... maar wat dan wel? Academische Boekengids, 88, 2-4.

Honing, H. (2012). If music isn’t a luxury, what is it? Journal of Music, Technology and Education, 5 (1), 114-117 DOI: 10.1386/jmte.5.1.109_5. 

Doet muziek er toe? [Dutch]

KNAW Tweegesprek: stemmen van Afrika in Nederland from SPUI25 on Vimeo.

'Vocal mimicry hypothesis' falsified?

See the video below from Hattori et al. (2013):

More later this week on this blog...

Hattori, Y., Tomonaga, M., & Matsuzawa, T. (2013). Spontaneous synchronized tapping to an auditory rhythm in a chimpanzee. Scientific Reports, 3 DOI: 10.1038/srep01566.

Confirmation of vocal learning hypothesis instead of falsification?

It was recently shown that rhythmic entrainment, long considered a human-specific mechanism, can be demonstrated in a select group of bird species, and, somewhat surprisingly, not in more closely related species such as nonhuman primates. This observation supports the vocal learning and synchronization hypothesis (Patel, 2006) that suggests that rhythmic entrainment is a by-product of the vocal learning mechanisms that are shared by several bird and mammal species, including humans, but that are only weakly developed, or missing entirely, in nonhuman primates. However, since no evidence of rhythmic entrainment was found in many vocal learners (including dolphins, seals, and songbirds), vocal learning may be necessary, but not sufficient for beat induction – the cognitive mechanism that supports the perception of a regular pulse from a varying rhythm.



Nevertheless, on April Fool's Day another piece of evidence – according to the authors falsifying the above mentioned hypothesis – was published in the Journal of Comparative Psychology reporting on a sea lion (Zalophus californianus) that was able to learn to entrain to the beat of music (Think of Everybody of the Backstreet Boys and Boogie Wonderland of Earth, Wind and Fire).

I have to admit that my library does not have access to the journal, so I have not been able to read the full paper as yet. But the video (included above) mentions a peculiar detail: the authors claim Sea Lions not to be vocal learners, and hence to have 'falsified' the above mentioned vocal learning and synchronization hypothesis. However, in how far pinnipeds have some level of vocal mimicking capabilities is still unclear. This combined with the fact that 'absence of evidence is no evidence of absence' (cf. Fitch [and comments below]), it seems again too early to tell...

Cook, P., Rouse, A., Wilson, M., & Reichmuth, C. (2013). A California Sea Lion (Zalophus californianus) Can Keep the Beat: Motor Entrainment to Rhythmic Auditory Stimuli in a Non Vocal Mimic. Journal of Comparative Psychology DOI: 10.1037/a0032345

Arnason, U., Gullberg, A., Janke, A., Kullberg, M., Lehman, N., Petrov, E., & Väinölä, R. (2006). Pinniped phylogeny and a new hypothesis for their origin and dispersal Molecular Phylogenetics and Evolution, 41 (2), 345-354 DOI: 10.1016/j.ympev.2006.05.022

Why do all the songs sound the same?

Lauren Stewart

The next SMART Cognitive Science Lecture on 5 April 1013 will be presented by Lauren Stewart (Goldsmiths, University of London) 
on the topic of Congenital Amusia and will be introduced by Gábor Háden (UvA).

The ability to make sense of musical sound has been observed in every culture since the beginning of recorded history. In early infancy, it allows us to respond to the sing-song interactions from a primary caregiver and to engage in musical play. In later life it shapes our social and cultural identities and modulates our affective and emotional states. But a few percent of the population fail to develop the ability to make sense of or engage with music. Individuals with congenital amusia cannot recognize familiar tunes, cannot tell one tune from another, frequently complain that music sounds like a “din” and avoid the many social situations in which music plays a role. In her talk Lauren Stewart will present data from perceptual experiments suggesting that individuals with amusia are insensitive to pitch direction and are unable to retain pitch information in memory. In addition, she will discuss ongoing genetic and neuroimaging approaches that we are using to characterize this disorder. The study of disordered musical development sets in sharp relief the perceptual and cognitive abilities which most of us take for granted and give us a unique chance to investigate how musical perceptual ability develops, from the level of the gene to the brain development and the emergence of a complex and fundamental human behavior.

More information on time, location, and the full program see SMART website.

Stewart, L. (2011). Characterizing congenital amusia The Quarterly Journal of Experimental Psychology, 64 (4), 625-638 DOI: 10.1080/17470218.2011.552730

Can monkeys spontaneously synchronize to audio?

Setup for the three experiments (from discussed publication).

It was recently shown that rhythmic entrainment, long considered a human-specific mechanism, can be demonstrated in a select group of bird species, and, somewhat surprisingly, not in more closely related species such as nonhuman primates. This observation supports the vocal learning hypothesis that suggests that rhythmic entrainment is a by-product of the vocal learning mechanisms that are shared by several bird and mammal species, including humans, but that are only weakly developed, or missing entirely, in nonhuman primates. However, since no evidence of rhythmic entrainment was found in many vocal learners (including dolphins, seals, and songbirds), vocal learning may be necessary, but not sufficient for beat induction – the cognitive mechanism that supports the perception of a regular pulse from a varying rhythm (Honing et al., 2012).

Today a new study appeared in Nature Scientific Reports claiming to show rhythmic entrainment (or spontaneous synchronization as the authors refer to it) in the Japanese macaque (Macaca Fuscata). Intriguing! However, reading the paper it becomes clear quickly that the results might not be what they seemed at first sight.

[link to video for non-Flash supporting devices]

First, as was shown in several earlier studies, macaques can synchronize to an auditory metronome, but they tend to do this in reaction, and not in anticipation of the sound. They do not show the typical negative synchronization error: tapping or pressing a button slightly earlier than the actual sound, a sign that an anticipatory process (i.e. expectation) plays a role.

Second, it is unclear whether the experiments are evidence for rhythmic entrainment: it could well be imitative behavior. This hypothesis is actually confirmed by the third experiment in which the monkeys were asked to synchronize with a virtual monkey (see panel C above) of which the auditory and visual information was presented independently as well as combined. The monkeys performed better for the visual condition as opposed to the auditory condition. In contrast, in humans it is the opposite: rhythmic entrainment is much stronger in the auditory modality.

Lastly, the researchers only analyzed asynchronies between the button presses of the two monkeys sitting opposite to each other (see Panel B above). Therefore the results could well be simply support for an imitative, cq. reactive behavior instead of evidence for a periodic anticipatory reaction that is common to human rhythmic entrainment.

Nagasaka, Y., Chao, Z., Hasegawa, N., Notoya, T., & Fujii, N. (2013). Spontaneous synchronization of arm motion between Japanese macaques Scientific Reports, 3 DOI: 10.1038/srep01151

Honing, H., Merchant, H., Háden, G., Prado, L., & Bartolo, R. (2012). Rhesus Monkeys (Macaca mulatta) Detect Rhythmic Groups in Music, but Not the Beat PLoS ONE, 7 (12) DOI: 10.1371/journal.pone.0051369

Can the origins of music be studied at all?

What was the role of music in the evolutionary history of human beings? And is it possible at all, you might wonder, to study this empirically, given the fact that neither music nor musicality fossilises?* So, better forget about it?

One potential strategy to address this question is to focus on the cognitive traits that could have contributed to the origins of music and musicality (cf. Honing & Ploeger, 2012) and see in how far we share these with other animals.

While there has been quite some critique on this idea – i.e. the apparent impossibility of studying the evolution of complex cognitive processes such as intelligence (Lewontin, 1998; Bolhuis & Wynne, 2009)–, a bottom-up approach, in which one looks for the basic mechanisms that combine into a complex cognitive trait – in our case musicality –, seems an alternative and potentially fruitful way to proceed.

While it is not uncommon to see certain cognitive functions as typically human (such as language), it could well be that there are more species than just humans that have the proper predispositions for music to emerge, species that share with us one or more basic mechanisms that make up musicality. The mere fact that music did not emerge in some species is no evidence that the trait of musicality is absent. In that sense a ‘bottom-up perspective’ (cf. de Waal & Ferrari, 2010) that focuses on the constituent capacities underlying a larger cognitive trait, in our case musicality, is a feasible alternative strategy to follow.

So, instead of studying a complex cognitive trait (such as intelligence) in this approach one explores the basic processes that make up that trait. And in the case at hand: instead of asking which species are musical, the question becomes: how does musicality actually work? What are the necessary ingredients of musicality, and how did these evolve?

It's these questions that will be the focus of the Distinguished Lorentz Fellowship in the coming year at the Netherlands Institute of Advanced Studies and the topic of an international workshop at the Lorentz Center. I'm looking forward to it!

*N.B. the oldest music-related artifact currently known is dated ca. 43,000 old, quite meaningless on an evolutionary scale of million of years.

Bolhuis, J., & Wynne, C. (2009). Can evolution explain how minds work? Nature, 458 (7240), 832-833 DOI: 10.1038/458832a

Honing, H., & Ploeger, A. (2012). Cognition and the Evolution of Music: Pitfalls and Prospects Topics in Cognitive Science, 4 (4), 513-524 DOI: 10.1111/j.1756-8765.2012.01210.x

Lewontin, R.C. (1998). The evolution of cognition: Questions we will never answer. In D. Scarborough & S. Sternberg (Eds.), Methods, models, and conceptual issues: An invitation to cognitive science, Vol. 4 (pp. 107-132). Cambridge, MA: MIT Press.

de Waal, F., & Ferrari, P. (2010). Towards a bottom-up perspective on animal and human cognition Trends in Cognitive Sciences, 14 (5), 201-207 DOI: 10.1016/j.tics.2010.03.003