Paper “Effects of Interactive Sonification on
Emotionally Expressive Walking Styles” published in “IEEE Transactions
on Affective computing” journal with impact factor 2.68.
The paper is a research that contains two experiments.
The first experiment is about emotional walking and how the audio feedback of
the steps is affecting the performance of the walking. The participants have to
walk with sad, happy, fear, aggressive, tender and natural emotion. Different
footstep sound feedback was produced in case of metal, wood, gravel, snow ground
materials. In the second one the participants were different and they were
asked to recognize the most characteristics sounds that were performed it the
first experiment.
The quantitative methods that are used in this paper
are surveys and laboratory experiments. The benefits of surveys are a lot. The data of
the surveys are easy to collect, to be analyzed and to be compared. The
participant can answer them quickly and easy. The limitation is that the
participant cannot describe his experience the way he wants to. However, the
participants could leave an open comment about their experience at the end of
the questionnaire. Lab experiments provide to researchers perfect conditions to
perform and record the experiments, also to use equipment and anything else
needed. The experiments would be difficult to perform in real world and the
final results could be wrong. Nevertheless, the equipment should well design in
order not to distract or be inconvenient to the participant.
The researches wanted to know the level of individual awareness achieved
after the end of each experiment, so the questionnaires in the end were
necessary. A graphic representation with the answer of the surveys has been
done. In the laboratory experiments a lot of technologies were used. The main equipment
(active shoes) was created by the researchers according to the needs of the
experiments. Participants also had to practice before the lab experiments and
familiarize with the systems.
There were not methodological problems in the
questionnaires. The questionnaires involved 3 parts, the participant had to
answer all the question of each part, and then he was able to read and answer
the questions of the next part. The open comments of the participants were
interesting and several. As concerns the laboratory experiments, the active
shoes that the participants wore, could be designed better, in order to be more
convenient to the participant, when he performed the walking styles.
Reflections on Drumming in Immersive Virtual Reality
Immersive
virtual reality is about transporting
people to virtual place, where they can not only “be there” but also “act there”. That is to say that they have a “presence”
there, they can experience new things and take part in activities. Virtual body ownership illusions
refer to the feeling to see your body in a virtual environment in a different
body type and also have bodily sensations and notion that is directed by you. These
two concepts were unknown to me. The differences between virtual reality and
immersive virtual reality were clearer after I read the paper. It was very
interesting to read and learn about virtual body ownership illusions and the results
on humans’ behavior. The experiment shown that when people own a different body
type tend to change their behavior according to that, despite any demographical
characteristics. In other words by using the correct body type in the IVR we
can direct how people we want to perform and behave. This can be used in a lot
of different fields like education, psychotherapy and rehabilitation in order
to help people perform better by seeing and using a specific body type in a
specific virtual environment.
Quantitative methods
Benefits: data can be collected and analyzed quickly. When the data
are numerical, the results are objective and cannot be misinterpreted. In addition, the results
of a sample can be generalized
to the entire population if the response rate is high enough. In the case
of statistical methods, we can understand huge amount of data after the statistic analyze.
Also, the results of the quantitative methods are reliable enough to help us
direct our future plans.
Limitations: a study that uses this method is related to the
people that take part. The participants have to be a lot, in order to have a
big sample of the population, which also leads to a bigger cost of this method.
Qualitative methods
Benefits: we can explore a topic with more details. So it is
offering richness and depth
of understanding of a field. Also, provides insights into the setting of
a problem, the generating ideas and the hypotheses for later quantitative
research. The method is more
flexible in time and place and has a smaller cost than the quantitative method, since
there is no need to interact with a lot of people or recruit them.
Limitations: in process and
metrics the method is essentially subjective. Also it is not possible to track the risks. Finally,
the results cannot be generalized to entire population
About your research paper, I would have liked to know if final questionnaires have been designed by quantitative or qualitative methods. In other words, it would be relevant to mention the questionnaire is made with "close question" or if there is a person in front of the participant trying to understand in details each of his/her answers. I think that the second option is more laborious but maybe more interesting in terms of people behaviors understanding.
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