Search results for "Percept"
showing 10 items of 3839 documents
Disentangling temporal patterns in our perception of the fossil history of gymnosperms
2012
By taking gymnosperms as a case study, this article evaluates the perception of plant life history from the fossil record to test the biases associated with the time-dependent aspects of the taxonomy, following a stepwise modelling procedure based on two divergent sets of time units. The idea that the effects of the temporal component of paleobiological inference need to be evaluated to remove any possible bias in our interpretation and perception of plant evolution based on analyses of large-scale data sets is investigated. The results reveal important differences in our perception of the tempo of gymnosperm evolution and how it is biased in terms of time unit length due to the loss of inf…
Subliminal fear priming potentiates negative facial reactions to food pictures in women with anorexia nervosa.
2010
BackgroundTo investigate hedonic reactivity and the influence of unconscious emotional processes on the low sensitivity to positive reinforcement of food in anorexia nervosa (AN).MethodAN and healthy women were exposed to palatable food pictures just after a subliminal exposure to facial expressions (happy, disgust, fear and neutral faces), either while fasting or after a standardized meal (hungerversussatiety). Both implicit [facial electromyographic (EMG) activity from zygomatic and corrugator muscles, skin conductance, heart rate, and videotaped facial behavior] and explicit (self-reported pleasure and desire) measures of affective processes were recorded.ResultsIn contrast to healthy wo…
I know what i like when i see it:Likability is distinct from pleasantness since early stages of multimodal emotion evaluation
2021
Liking and pleasantness are common concepts in psychological emotion theories and in everyday language related to emotions. Despite obvious similarities between the terms, several empirical and theoretical notions support the idea that pleasantness and liking are cognitively different phenomena, becoming most evident in the context of emotion regulation and art enjoyment. In this study it was investigated whether liking and pleasantness indicate behaviourally measurable differences, not only in the long timespan of emotion regulation, but already within the initial affective responses to visual and auditory stimuli. A cross-modal affective priming protocol was used to assess whether there i…
Challenging the negative images of Haiti at a pre-visit stage using visual online learning materials
2016
Post-conflict destinations can struggle to attract visitors because of their negative image. Research addressing this remains limited. The same can be said about the education of tourists. This research paper contributes to the literature in both areas as it examines the proposition that the education of tourists at a pre-visit stage using online, game-based material could be effective in challenging the negative perception of these destinations. From a destination management point of view, this paper offers an alternative to existing promotional material as there is little evidence at the moment that existing strategies are effective. From a conceptual point of view, this paper contributes…
Color difference threshold of chromostereopsis induced by flat display emission
2015
The study of chromostereopsis has gained attention in the backdrop of the use of computer displays in daily life. In this context, we analyze the illusory depth sense using planar color images presented on a computer screen. We determine the color difference threshold required to induce an illusory sense of depth psychometrically using a constant stimuli paradigm. Isoluminant stimuli are presented on a computer screen, which stimuli are aligned along the blue–red line in the computer display CIE xyY color space. Stereo disparity is generated by increasing the color difference between the central and surrounding areas of the stimuli with both areas consisting of random dots on a black backgr…
Perception of Political Leadership in Local Governments in Latvia
2018
Theme of the paper is political leadership in local governments in Latvia. The work uses secondary data analysis and case studies. The aim of the study is to find out what kind of role does the chairperson of the municipality have as a political leader and what kinds of factors are influencing him/her. The results revealed that formally the chairperson of the municipality has no decisive influence on the municipality and that both types of factors (internal and external) interact with each other limiting the political leader’s (chairperson’s of a municipality) freedom of action.
Relación entre el consumo de sustancias tóxicas y el uso del preservativo
2019
En los últimos años ha habido un repunte en las infecciones de transmisión sexual (ITS). Tradicionalmente, se asociaban las ITS a ciertos colectivos. Sin embargo, se observa que esta acentuación se da en diferentes grupos poblacionales, y es debida principalmente a las conductas sexuales de riesgo que se realizan, las cuales son exacerbadas por ciertos factores, como el consumo de sustancias tóxicas, la baja percepción de riesgo o la búsqueda de sensaciones sexuales. El principal objetivo es comprobar la relación existente entre el consumo de sustancias y el uso del preservativo en distintas prácticas sexuales. Como objetivos secundarios, se estudiarán estas mismas relaciones en función del…
Risk perception, knowledge, prevention, information sources and efficacy beliefs related to Covid-19
2020
Abstract Background Sars-Cov-2 is one of the latest examples of an emerging infectious disease challenging the world and it is the third case, in just two decades, of “spillover”. In light of the recent outbreak (Italy is in 2nd position), it is important to evaluate people risk perception and to support the Health Authority with effective communicative actions to avoid the spread of “infodemia”/alarmism. The aim of this study is a) to study levels of perceived threat, risk perception, severity and comparative vulnerability b) to compare risk perception with other communicable/not communicable diseases; c) provide information to increase awareness/ knowledge of the disease. Methods We perfo…