Search results for "Tapping"

A Coupled Oscillator Model of Interactive Tapping

2009

Background: Synchronization in music has been a popular experimental basis for studying social interactions, as musicians are required to synchronize to each other’s beats and integrate abstract social information in order to coordinate their actions as part of a non-verbal communication process. A finger-tapping paradigm has been used in studies of sensorimotor synchronization as well as coordination dynamics within and between people (Repp 2005). Recent models of tapping dynamics have included two error-correction mechanisms: phase and period correction (Repp & Keller). They have generally been linear models, which are oversimplifications of these dynamics. Aims: To model the dynamics cap…

A comparison of methods for investigating the perceptual center of musical sounds

2019

In speech and music, the acoustic and perceptual onset(s) of a sound are usually not congruent with its perceived temporal location. Rather, these "P-centers" are heard some milliseconds after the acoustic onset, and a variety of techniques have been used in speech and music research to find them. Here we report on a comparative study that uses various forms of the method of adjustment (aligning a click or filtered noise in-phase or anti-phase to a repeated target sound), as well as tapping in synchrony with a repeated target sound. The advantages and disadvantages of each method and probe type are discussed, and then all methods are tested using a set of musical instrument sounds that syst…

Impaired reproduction of second but not millisecond time intervals in Parkinson's disease

2008

The basal ganglia have been associated with temporal processing in ranges of milliseconds and seconds. However, results from PD patient studies are elusive. Time perception in these patients has been tested with different approaches including repetitive movement tasks (i.e. finger tapping) and cognitive tasks (i.e. time reproduction), and both abnormal and normal performances have been reported for different time intervals. Furthermore, when PD patients were required to learn two target durations in the same session when they were off medication, they overestimated the short duration and underestimated the long duration in the seconds range. This pattern of temporal accuracy was described a…

Simultaneous imaging of the surface and the submembraneous cytoskeleton in living cells by tapping mode atomic force microscopy

1997

Contact and tapping mode atomic force microscopy have been used to visualize the surface of cultured CV-1 kidney cells in aqueous medium. The height images obtained from living cells were comparable when using contact and tapping modes. In contrast, the corresponding, and simultaneously acquired, deflection images differed markedly. Whereas, as expected, deflection images enhanced the surface features in the contact mode, they revealed the presence of a filamentous network when using the tapping mode. This network became disorganized upon addition of cytochalasin, which strongly suggests that it corresponded to the submembraneous cytoskeleton. Examination of fixed cells further supported th…

Frequency-specific network activity predicts bradykinesia severity in Parkinson’s disease

2021

Highlights • Parallel subnetworks are affected in bradykinesia. • The primary motor and the premotor cortex are common nodes with task-specificity. • Beta activity decreases, gamma activity increases with improvement of bradykinesia. • Subthalamic stimulation reduces beta, increases gamma power in ipsilateral cortex. • Subnetworks act with frequency-specific oscillations.

Smoking and neurocognition in schizophrenia and bipolar disorder

2011

IntroductionSeveral studies have suggested that nicotine could have beneficial effects on cognitive functioning.ObjectiveTo explore the association between smoking and cognitive functioning in bipolar disorder and schizophrenia.MethodsObservational study. We analyzed data from 184 participants in 3 groups (61 healthy controls, 47 euthymic patients with bipolar-I disorder, 76 patients with clinically stable schizophrenia) assessed by a neuropsychological battery. Statistical analysis was performed comparing subgroups of smokers and non-smokers data. Both groups were demographic and clinically comparable.ResultsSmoking rate was higher in participants with bipolar disorder and schizophrenia (X…

Nordic Comparison of 75-Year-Olds - Sensory and Psychomotor Functions

1993

Sensory and psychomotor functions were studied among 75-year-old men and women in three Nordic localities (Glostrup in Denmark, Gothenburg in Sweden, and Jyvaskyla in Finland) as part of a comparative study on functional capacity and health. Random samples were drawn from the population registers in Glostrup (n=550) and Gothenburg (n=450), whereas in Jyvaskyla all 75-year-old residents (n=388) were invited to participate in the study. Participation rates varied from 66.8% in Gothenburg to 79.1% in Jyvaskyla. Sensory functions studied included hearing (pure-tone thresholds at 125-8000 Hz), vision (visual acuity, refraction, intraocular pressure), balance (postural sway), and tactual sensitiv…

Schizophrenia patients who smoke have a faster finger tapping rate

2002

Hunting for the beat in the body: on period and phase locking in music-induced movement.

2014

Music has the capacity to induce movement in humans. Such responses during music listening are usually spontaneous and range from tapping to full-body dancing. However, it is still unclear how humans embody musical structures to facilitate entrainment. This paper describes two experiments, one dealing with period locking to different metrical levels in full-body movement and its relationships to beat- and rhythm-related musical characteristics, and the other dealing with phase locking in the more constrained condition of sideways swaying motions. Expected in Experiment 1 was that music with clear and strong beat structures would facilitate more period-locked movement. Experiment 2 was assum…

Therapeutic Benefits of Music-Based Synchronous Finger Tapping In Parkinson’s Disease – an fNIRS Study Protocol for Randomized Controlled Trial in Da…

2020

Abstract Background: Music therapy improves neuronal activity and connectivity of healthy persons and patients with clinical symptoms of neurological diseases like Parkinson’s disease, Alzheimer’s Disease, and Major Depression. Despite the plethora of publications that have reported the positive effects of music interventions, little is known about how music improves neuronal activity and connectivity in afflicted patients.Methods: For patients suffering from Parkinson’s disease (PD), we propose a daily 25-minute music-based synchronous finger tapping (SFT) intervention for 8-weeks. Eligible participants with PD are split into two groups: an intervention group and a control arm. In addition…