Trial time warping to discriminate stimulus-related from movement-related neural activity

Pérez, Oswaldo; Merchant, Hugo

doi:10.1016/j.jneumeth.2012.10.019

Cited by 37 publications

(37 citation statements)

References 39 publications

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“…This circuit is usually involved in the control of voluntary skeletomotor movements and includes the supplementary motor cortex (SMA) and the putamen as the fundamental cortical and neostriatal nodes, respectively (Coull et al, 2011). Interestingly, neurophysiological studies in monkeys have also shown that the mCBGT circuit is engaged in both the perceptual and motor aspects of timing (Merchant et al, 2013a; Perez et al, 2013), as well as the control of movement sequences (Tanji, 2001). …”

Section: The Gradual Audiomotor Evolution Hypothesismentioning

confidence: 99%

Are non-human primates capable of rhythmic entrainment? Evidence for the gradual audiomotor evolution hypothesis

Merchant¹,

Honing²

2014

Front. Neurosci.

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We propose a decomposition of the neurocognitive mechanisms that might underlie interval-based timing and rhythmic entrainment. Next to reviewing the concepts central to the definition of rhythmic entrainment, we discuss recent studies that suggest rhythmic entrainment to be specific to humans and a selected group of bird species, but, surprisingly, is not obvious in non-human primates. On the basis of these studies we propose the gradual audiomotor evolution hypothesis that suggests that humans fully share interval-based timing with other primates, but only partially share the ability of rhythmic entrainment (or beat-based timing). This hypothesis accommodates the fact that non-human primates (i.e., macaques) performance is comparable to humans in single interval tasks (such as interval reproduction, categorization, and interception), but show differences in multiple interval tasks (such as rhythmic entrainment, synchronization, and continuation). Furthermore, it is in line with the observation that macaques can, apparently, synchronize in the visual domain, but show less sensitivity in the auditory domain. And finally, while macaques are sensitive to interval-based timing and rhythmic grouping, the absence of a strong coupling between the auditory and motor system of non-human primates might be the reason why macaques cannot rhythmically entrain in the way humans do.

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Section: The Gradual Audiomotor Evolution Hypothesismentioning

confidence: 99%

Are non-human primates capable of rhythmic entrainment? Evidence for the gradual audiomotor evolution hypothesis

Merchant¹,

Honing²

2014

Front. Neurosci.

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172

213

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“…Indeed, brain oscillatory activity has been suggested as a major signal to encode the passage of time (Treisman et al, 1994). Recent imaging and neurophysiological studies have implicated the CBGT as a fundamental part of the timing mechanism in time perception (Macar et al, 2006;Harrington et al, 2010) and time production tasks in the scale of hundreds of milliseconds (Jin et al, 2009;Wiener et al, 2010), including the SCT (Rao et al, 1997;Merchant et al, 2011Merchant et al, , 2013aPerez et al, 2013). Therefore, in the present study, we investigated the dynamic changes of both the spiking responses and the ␥-and ␤-activity in LFPs of the putamen during a version of SCT with three intervals in the synchronization phase and three intervals in the continuation phase.…”

Section: Introductionmentioning

confidence: 99%

Information Processing in the Primate Basal Ganglia during Sensory-Guided and Internally Driven Rhythmic Tapping

2014

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Gamma (␥) and beta (␤) oscillations seem to play complementary functions in the cortico-basal ganglia-thalamo-cortical circuit (CBGT) during motor behavior. We investigated the time-varying changes of the putaminal spiking activity and the spectral power of local field potentials (LFPs) during a task where the rhythmic tapping of monkeys was guided by isochronous stimuli separated by a fixed duration (synchronization phase), followed by a period of internally timed movements (continuation phase). We found that the power of both bands and the discharge rate of cells showed an orderly change in magnitude as a function of the duration and/or the serial order of the intervals executed rhythmically. More LFPs were tuned to duration and/or serial order in the ␤-than the ␥-band, although different values of preferred features were represented by single cells and by both bands. Importantly, in the LFPs tuned to serial order, there was a strong bias toward the continuation phase for the ␤-band when aligned to movements, and a bias toward the synchronization phase for the ␥-band when aligned to the stimuli. Our results suggest that ␥-oscillations reflect local computations associated with stimulus processing, whereas ␤-activity involves the entrainment of large putaminal circuits, probably in conjunction with other elements of CBGT, during internally driven rhythmic tapping.

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“…They also imply that neuronal mechanisms underlying rhythm sensitivity can be studied at the cellular level in an animal model that is closely related to humans. With a few exceptions in animals (Scheich et al, 1979, 1983; Merchant et al, 2011; Perez et al, 2013), such mechanisms have been studied in humans only and with non-invasive brain imaging techniques, like EEG and fMRI. They have revealed the basal ganglia (Matell and Meck, 2004; Buhusi and Meck, 2005; Meck, 2005; Grahn and Brett, 2007; Teki et al, 2011) and several cortical areas including auditory cortex, supplementary motor cortex, anterior cingulate, and premotor cortex (Chen et al, 2008; Coull and Nobre, 2008; Grahn and McAuley, 2009; Grahn and Rowe, 2009; Geiser et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Rhythm sensitivity in macaque monkeys

Selezneva¹,

Deike²,

Knyazeva³

et al. 2013

Front. Syst. Neurosci.

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This study provides evidence that monkeys are rhythm sensitive. We composed isochronous tone sequences consisting of repeating triplets of two short tones and one long tone which humans perceive as repeating triplets of two weak and one strong beat. This regular sequence was compared to an irregular sequence with the same number of randomly arranged short and long tones with no such beat structure. To search for indication of rhythm sensitivity we employed an oddball paradigm in which occasional duration deviants were introduced in the sequences. In a pilot study on humans we showed that subjects more easily detected these deviants when they occurred in a regular sequence. In the monkeys we searched for spontaneous behaviors the animals executed concomitant with the deviants. We found that monkeys more frequently exhibited changes of gaze and facial expressions to the deviants when they occurred in the regular sequence compared to the irregular sequence. In addition we recorded neuronal firing and local field potentials from 175 sites of the primary auditory cortex during sequence presentation. We found that both types of neuronal signals differentiated regular from irregular sequences. Both signals were stronger in regular sequences and occurred after the onset of the long tones, i.e., at the position of the strong beat. Local field potential responses were also significantly larger for the durational deviants in regular sequences, yet in a later time window. We speculate that these temporal pattern-selective mechanisms with a focus on strong beats and their deviants underlie the perception of rhythm in the chosen sequences.

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Trial time warping to discriminate stimulus-related from movement-related neural activity

Cited by 37 publications

References 39 publications

Are non-human primates capable of rhythmic entrainment? Evidence for the gradual audiomotor evolution hypothesis

Are non-human primates capable of rhythmic entrainment? Evidence for the gradual audiomotor evolution hypothesis

Information Processing in the Primate Basal Ganglia during Sensory-Guided and Internally Driven Rhythmic Tapping

Rhythm sensitivity in macaque monkeys

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