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Accurate localization of cerebrospinal fluid (CSF) fistula in a patient with CSF rhinorrhea is challenging and often involves multiple imaging studies with associated expense and patient discomfort. Intrathecal contrast-enhanced computed tomography (CT) and unenhanced magnetic resonance (MR) cisternography using constructive interference in steady state (CISS-3D) sequences are currently being used in attempt to localize the leakage site but with varying degrees of success. Our purpose is to evaluate the utility of intrathecal gadolinium-enhanced MR cisternography (GdMRC) in patients with CSF rhinorrhea. Ten consecutive patients of CSF rhinorrhea (five spontaneous, four post-traumatic, and one post-operative) were evaluated with GdMRC. Nine of the patients underwent intrathecal contrast CT and CISS-3D examinations in addition. Each of studies was reviewed independently by three neuroradiologists blinded to results of other modalities. Surgery was planned after consensus and surgical correlation obtained in nine cases. The fistulous site was clearly demonstrated by using GdMRC in eight patients, CISS-3D in six, and intrathecal CT in three patients. The site of leakage was confirmed surgically in all the patients. One patient was found to be false negative both by intrathecal CT and GdMRC, and in one patient no fistulous site was demonstrated by any of the modalities and surgery was not offered. No adverse reaction was seen in any of the patients. GdMRC is a novel method of confirmation and localization of CSF fistula with potential for routine clinical application. Diagnosis and localization of fistulous site is better demonstrated due to its high-contrast resolution, absence of bony artifacts, and direct multi-planar imaging.

Music often triggers a pleasurable urge in listeners to move their bodies in response to the rhythm. In music psychology, this experience is commonly referred to as groove. This study presents the Experience of Groove Questionnaire, a newly developed self-report questionnaire that enables respondents to subjectively assess how strongly they feel an urge to move and pleasure while listening to music. The development of the questionnaire was carried out in several stages: candidate questionnaire items were generated on the basis of the groove literature, and their suitability was judged by fifteen groove and rhythm research experts. Two listening experiments were carried out in order to reduce the number of items, to validate the instrument, and to estimate its reliability. The final questionnaire consists of two scales with three items each that reliably measure respondents’ urge to move (Cronbach’s α = .92) and their experience of pleasure (α = .97) while listening to music. The two scales are highly correlated (r = .80), which indicates a strong association between motor and emotional responses to music. The scales of the Experience of Groove Questionnaire can independently be applied in groove research and in a variety of other research contexts in which listeners’ subjective experience of music-induced movement and enjoyment need to be addressed: for example the study of the interaction between music and motivation in sports and research on therapeutic applications of music in people with neurological movement disorders.

Introduction. Rhythmic auditory stimulation (RAS) has successfully helped regulate gait for people with Parkinson’s disease. However, the way in which different auditory cues and types of movements affect entrainment, synchronization, and pacing stability has not been directly compared in different aged people with and without Parkinson’s. Therefore, this study compared music and metronomes (cue types) in finger tapping, toe tapping, and stepping on the spot tasks to explore the potential of RAS training for general use. Methods. Participants (aged 18–78 years) included people with Parkinson’s (n = 30, Hoehn and Yahr mean = 1.78), older (n = 26), and younger adult controls (n = 36), as age may effect motor timing. Timed motor production was assessed using an extended synchronization-continuation task in cue type and movement conditions for slow, medium, and fast tempi (81, 116, and 140 mean beats per minute, respectively). Results. Analyses revealed main effects of cue and movement type but no between-group interactions, suggesting no differences in motor timing between people with Parkinson’s and controls. Music supported entrainment better than metronomes in medium and fast tempi, and stepping on the spot enabled better entrainment and less asynchrony, as well as more stable pacing compared to tapping in medium and fast tempi. Age was not confirmed as a factor, and no differences were observed in slow tempo. Conclusion. This is the first study to directly compare how different external auditory cues and movement types affect motor timing. The music and the stepping enabled participants to maintain entrainment once the external pacing cue ceased, suggesting endogenous mechanisms continued to regulate the movements. The superior performance of stepping on the spot suggests embodied entrainment can occur during continuous movement, and this may be related to emergent timing in tempi above 600 ms. These findings can be applied therapeutically to manage and improve adaptive behaviours for people with Parkinson’s.

Dance has become an important topic for research in empirical aesthetics, social and motor cognition, and as an intervention for neurodegenerative and neurodevelopmental disorders. Despite the growing scientific interest in dance, no standardized psychometric instrument exists to assess people's dance experience. Here, we introduce the Goldsmiths Dance Sophistication Index (Gold-DSI), a 26-item questionnaire to measure individual differences in participatory and observational dance experience on a continuous scale. The Gold-DSI was developed in 3 stages: In the first stage, a set of 76 items was generated by adapting questions from the Goldsmiths Musical Sophistication Index (Müllensiefen, Gingras, Musil, & Stewart, 2014) and as part of a stakeholder workshop using a grounded theory approach. The second stage focused on item reduction. Using a large-scale online survey (N ϭ 424), hierarchical factor analysis was used to fit a model comprising of one general and six secondary factors (28 items in total). In Stage 3, six new items were added to specifically capture individual differences in dance observation. We then collected data from two samples for final model estimation (n ϭ 127) and evaluation (n ϭ 190). The final version of the Gold-DSI comprises 26 items; 20 items relate to 1 general factor that captures experience in dance participation. This includes 4 secondary factors: body awareness, social dancing, urge to dance, and dance training. A further 6 items separately measure experience in dance observation. In sum, the Gold-DSI provides a brief, standardized, and continuous assessment of doing, watching, and knowing about dance.

In music psychology, the experience of wanting to move in response to music is commonly known as feeling the groove. According to the psychological model of musical groove by Senn et al., the causes for the urge to move are linked to the properties of the music itself, to the personal background of the listener, to the listening situation, and to feedback loops between body movement and cognition. The model formulates eight hypotheses stating that the music affects a listener's urge to move mediated through a variety of cognitive processes. This study develops a method based on structural equation modeling (SEM) to empirically test the model hypotheses. It evaluates five of the model hypotheses using data from an online listening experiment with 135 participants and 16 stylistically diverse musical stimuli (n = 2,160 observations). The SEM model had a good fit with the data (CFI = 0.958, RMSEA = 0.051) and explained a large proportion of the variance in the latent urge to move variable (R 2 = .737). Results show that music affects the urge to move mediated through listeners' experiences of energetic arousal, listening pleasure, and temporal regularity. The stimuli themselves showed direct effects on the urge to move that were not mediated through the hypothesized mediation pathways. This suggests that the model is incomplete. The current study demonstrates that the mediation structure of the psychological groove model can successfully be implemented using an SEM approach. The methodology may be adapted to investigate different repertoires, populations, and hypotheses in the future. Public Significance StatementMusic has the wonderful capacity to motivate body movement in humans. This study presents an empirical validation of a psychological model that aims at explaining how music makes us dance.

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Objectives. Although many studies have shown that psychosocial interventions, such as dance classes, can improve quality of life for people with Parkinson’s disease (PD): few have addressed the role of, and potential benefits to, the caregivers in such activities. This mixed methods study explored the reasons for caregiver participation in a variety of activities and considered whether participation in, or abstention from these, affected the wellbeing of the caregivers. Method. Transcriptions of a focus group (two people with PD, two caregivers) and eight semistructured interviews (caregivers) were analysed using Grounded Theory (GT). To test the hypotheses derived from the GT, caregivers (n = 75) completed an online survey about activities they and the person they care for participated in, alongside the PDQ-Carer questionnaire, to establish the caregiver’s levels of wellbeing. Results. Qualitative findings suggested that caregivers tried to find a balance between caring for the person with PD and participating in activities to attend to their own needs. Reasons for participating in activities for people with PD included being able to socialise in an empathetic safe space, alongside engaging in physical activity that provided some respite distraction, such as dancing with others to music. Reasons for not participating included generating time for oneself and increasing the independence of the person with PD. Quantitative results suggested that most of the participants’ wellbeing was not compromised, although this was gendered: female caregivers reported lower wellbeing scores than male caregivers. Overall, 62% of caregivers participated in joint activities. Linear regression revealed a significant relationship between nonparticipation in daily activities and stress levels for female caregivers only, whereby the more independent the person with PD was, the lower the stress of the caregiver. Conclusion. This study suggests that caregivers of people with PD can find a healthy balance in terms of their own wellbeing by jointly participating in two-thirds of activities while ensuring the remaining third is time reserved for themselves.