Musical auditory stimulation at different intensities and its effects on the geometric indices of heart-rate variability

Introduction: Previous studies have shown that relaxation music increases the heart's parasympathetic modulation as well as reducing its sympathetic activity. However, what is lacking in the literature is information on the acute effects of different intensities of music on cardiac autonomic regulation. We aimed to evaluate the acute effects of baroque and heavy-metal music on cardiac autonomic regulation at different intensities. Method The study was performed in 16 healthy men aged between 18 and 25 years. The main outcomes were the geometric indices of heart-rate variability (HRV) [i.e. triangular index (RRtri); triangular interpolation of RR intervals (TINN) and Poincaré plot: SD1, SD2 and SD1/SD2 ratio]. First, HRV was recorded at rest for 10 min. The volunteers were then exposed to baroque or heavy-metal music for 5 min through an earphone; subjects were exposed to each song at three different sound levels (60–70, 70–80 and 80–90 decibels). After the first song, subjects remained at rest for 5 min before being exposed to the next song. The sequence of songs and sound intensity were randomised for each individual. Results Musical auditory stimulation with baroque music did not influence the geometric indices of HRV. The same was observed with heavy-metal musical auditory stimulation at the three sound-level ranges. Conclusion Musical auditory stimulation at different sound intensities did not influence the geometric indices of HRV in men.

Cardiac autonomic regulation during exposure to auditory stimulation with classical baroque or heavy metal music of different intensities

Objectives: The effects of chronic music auditory stimulation on the cardiovascular system have been investigated in the literature. However, data regarding the acute effects of different styles of music on cardiac autonomic regulation are lacking. The literature has indicated that auditory stimulation with white noise above 50 dB induces cardiac responses. We aimed to evaluate the acute effects of classical baroque and heavy metal music of different intensities on cardiac autonomic regulation. Study design: The study was performed in 16 healthy men aged 18-25 years. All procedures were performed in the same soundproof room. We analyzed heart rate variability (HRV) in time (standard deviation of normal-to-normal R-R intervals [SDNN], root-mean square of differences [RMSSD] and percentage of adjacent NN intervals with a difference of duration greater than 50 ms [pNN50]) and frequency (low frequency [LF], high frequency [HF] and LF/HF ratio) domains. HRV was recorded at rest for 10 minutes. Subsequently, the volunteers were exposed to one of the two musical styles (classical baroque or heavy metal music) for five minutes through an earphone, followed by a five-minute period of rest, and then they were exposed to the other style for another five minutes. The subjects were exposed to three equivalent sound levels (60- 70dB, 70-80dB and 80-90dB). The sequence of songs was randomized for each individual. Results: Auditory stimulation with heavy metal music did not influence HRV indices in the time and frequency domains in the three equivalent sound level ranges. The same was observed with classical baroque musical auditory stimulation with the three equivalent sound level ranges. Conclusion: Musical auditory stimulation of different intensities did not influence cardiac autonomic regulation in men.

Auditory stimulation with music influences the geometric indices of heart rate variability in men

Background: Chronic classical music was reported to increase parasympathetic activitywhen evaluating heart rate variability (HRV). It is poor in the literature investigation of the acute effects of baroque and heavy metal styles of musical auditory stimulation on HRV. In this study we evaluated the acute effects of relaxant baroque and excitatory heavy metal music on the geometric indices of HRV in healthy men. Method: The study was performed in 12 healthy men between 18 and 30 years old. We excluded persons with previous experience with music instrument and those who had affinity with the song styles. We analyzed the following indices: RRtri, TINN and Poincaré plot (SD1, SD2 and SD1/SD2 ratio). HRV was recorded at rest for ten minutes. Subsequently they were exposed to relaxant baroque or excitatory heavy metal music for five minutes through an earphone. After the first music exposure they remained at rest for more five minutes and them they were exposed again to Baroque or Heavy Metal music (65–80 dB). The sequence of songs was randomized for each individual. Results: The RRTri and SD2 indices were reduced during the heavy metal musical auditory stimulation (p < 0.05). No changes were observed regarding TINN, SD1 and SD1/SD2 ratio (p > 0.05).The qualitative Poincaré plot analysis indicated that during relaxant classical baroque music there was observed a higher beat-to-beat dispersion of RR intervals compared with no music exposure and during excitatory heavy metal musical auditory stimulation, showing higher HRV. Conclusion: We suggest that excitatory heavy metal music acutely decreases global HRV.

Análise das fricativas em posição de coda nas Cantigas de Santa Maria

The present study has as main objectives the mapping and the analysis of fricatives in coda position in Galician-Portuguese religious songs of Alfonso X, the Wise King. The consonant system of BP, specifically with respect to fricatives, will be considered as object of study. The initial approach of the data, to establish whether there is opposition between the sounds represented by the focused graphemes, will be taken from the structuralism model (CAGLIARI, 2002). Thus, the elucidation of some characteristics of Portuguese linguistic background may contribute to clarify facts of its current structure

Impactos de atividades de exploração de petróleo e gás natural sobre a comunicação acústica de Mysticeti (ordem Cetacea): uma revisão

Acoustic communication is essential in mammals and has three main functions: acquisition of information about the environment, intraspecific communication and detection of predators and prey. Studies indicate that the introduction of sounds produced by anthropogenic activities such as military exercises, use of sonar and activities related to the extraction of oil and natural gas can cause interference in cetacean communication. Recently, the discovery of pre-salt tends to increase these activities. After a decade since the launch date of IBAMA`s licensing and before the imminent increase in exploration activities in Brazil, it is essential to conduct studies to monitor closely the impact of this type of activity on the marine ecosystem. Thus, this study aims to identify potential impacts that the process of oil and natural gas exploration and production might have on the communication of baleen whales. Data from literature on bioacoustics and ecology of these animals were linked with technical-scientific data regarding this type of activity. 310 documents related to the topic were analyzed. Among them only 81 documents are of academic origin, and the others mostly action plans and reports from government agencies. 80% of the documents do not have any species as a focus, and in the remaining 20%, 17% were focused on the Greenland Whale (Balaena mysticetus) and 22% on the gray whale (Eschrichtius robustus). The main impacts identified in this study were the increased frequency and amplitude of vocalization, reduction or cessation of more elaborate songs and masking problems

O estado da arte das vocalizações de anfíbios anuros da Mata Atlântica

The vocals are the most conspicuous means of communication between frogs and can express evolutionary relationships among species. Call descriptions of frogs, in general, not standard acoustic parameters which are greatly diversified and usually restricted to comparisons between closely related taxa. The Atlantic Forest is considered one of the biodiversity hotspots of the world, however, it appears that the number of species to be known is still very large. To anurans from this Brazilian Domain, vocalizations are complex and can vary intra and interpopulations. Thus, we presented a quantitative and qualitative analysis of the work descriptions of anuran advertisement call from the Atlantic Forest, available in the literature so far. The frog species from this Domain and their descriptions of the advertisement call have been raised in the literature, organized into families and threat category IUCN Red List Threatened Species. The analysis of the descriptions were made based on the presence of preset parameters. It was observed that the species which the advertisement call is described within the standard are expected within the Brazilian Atlantic Domain, but efforts to describe the advertisement call of frogs of the Atlantic are concentrated in non-threatened species. Among the descriptions works, there is a large discrepancy between the information presented, giving preference to the use of abiotic data in this kind of work, to the detriment of biotic data about choir where the songs were recorded. The results point to the need for advancements in the descriptions of the advertisement of endangered species or to those with deficient information on their conservation status in the Atlantic Forest, and also for greater communication between works that describe vocalizations of frogs. It will be important to know about the state of the art of descriptions works of frogs in other Brazilian Domains, and relate this information with knowledge...

Memória e espaço: a experiência dos músicos seresteiros na cidade de Rio Claro-SP

This paper will examine the experience of serenaders in the city of Rio Claro – SP. The trajectory of this cultural expression will be described, reconstructed, interpreted and mapped and mapped from the late 1940s to the present day via the oral history of the memories of the musicians who have experienced the practice and experience. The changes occurring in this cultural expression will be analysed form marks of the displacement of culture in time and space in the city of Rio Claro, taking into account the different socio-cultural contexts that characterized Brazil over this period and will track the path of identity serenade over time and among the different spaces that allowed the continuation of practice of romantic songs in Rio Claro

Os vilelas: a ilustração do caipira na modernidade

This research The Vilelas: illustration of the modern quest redneck identity of the peasant represented by two layers of compact disc (CD) of Ivan Vilela, Paisagens (1998) and Dez Cordas (2007). The first brings new songs and the second, copyright music with readings. Both illustrated by an artist named Fernando Vilela. The covers, in a symbiosis with culture and their traditional behavior hillbilly show relevance to constitute a parallel with today's society and the day by day

Gênero discursivo cinema, o filme musical: análise dialógica de Across the Universe

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

A influência da agenda mercosulina na criação do Conselho de Defesa Sul-Americano

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Diálogos que constroem sentidos: uma análise estilística de letras dos Engenheiros do Hawaii

The purpose of this work is the presentation of three lyrics of selected songs from the Brazilian national band Engenheiros do Hawaii and of a stylistic analysis showing how resources such as intertextuality, polyphony and word games helped building different effects of meaning. This work also attempts to show the importance of the reader in relating the elements presented in the lyrics with other texts of his/her repertoire, in order to expand the number of possible interpretations. The higher the repertoire of the reader, higher will be its ability to dialogue with other texts, considering both texts already read in the past or dialogues to be made with future texts

Entre a literatura e a música: o poético e o lúdico no contexto da canção da MPB

The present article considers the configuration of poetic features of a song in the context of the so called Brazilian Popular Music. The inicial discussion draws general and theoretical considerations about the relations between literature and music and deepens the analysis on the nature of the song as a manifestation of a consciousness of the historical memory as a metaphysical and aesthetical transcendence. The ludic element is then considered as an important element of the poetic features of songs in the 60‟s and nowadays.

O potencial da música como recurso motivador na aula de língua inglesa da rede pública

The aim of this study was to verify the potential of music as a pedagogical resource in the English class of a public school. The results confirmed that it is possible to motivate students through the use of songs.

Uma estética do paradoxo: aspectos do melodrama no romance latino-americano do pós-boom

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

As canções de Camargo Guarnieri e Suzanna de Campos: um estudo para a interpretação

Pós-graduação em Música - IA