Decay and interference effects in visuospatial short-term memory

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What does the Ternus display tell us about motion processing in human vision?

The Ternus display is a moving visual stimulus which elicits two very different percepts, according to the length of the interstimulus interval (ISI) between each frame of the motion sequence. These two percepts, referred to as element motion and group motion, have previously been analysed in terms of the operation of a low-level, dedicated short-range motion process (in the case of element motion), and of a higher-level, attentional long-range motion process (in the case of group motion). We used a novel Ternus configuration to show that both element and group motion are, in fact, mediated solely by a process sensitive to changes in the spatial appearance of the Ternus elements. In light of this, it appears that Ternus displays tell us nothing about low-level motion processing, implying that previous studies using Ternus displays, for instance those dealing with dyslexia, require reinterpretation. Further manipulations of the Ternus display revealed that the orientation and spatial-frequency discrimination of the process underlying the analysis of Ternus displays is far worse than thresholds for spatial vision. We conclude that Ternus displays are analysed via a long-range motion, or feature-tracking, process, and that this process is distinct from spatial vision.The Ternus display is a moving visual stimulus which elicits two very different percepts, according to the length of the interstimulus interval (ISI) between each frame of the motion sequence. These two percepts, referred to as element motion and group motion, have previously been analysed in terms of the operation of a low-level, dedicated short-range motion process (in the case of element motion), and of a higher-level, attentional long-range motion process (in the case of group motion). We used a novel Ternus configuration to show that both element and group motion are, in fact, mediated solely by a process sensitive to changes in the spatial appearance of the Ternus elements. In light of this, it appears that Ternus displays tell us nothing about low-level motion processing, implying that previous studies using Ternus displays, for instance those dealing with dyslexia, require reinterpretation. Further manipulations of the Ternus display revealed that the orientation and spatial-frequency discrimination of the process underlying the analysis of Ternus displays is far worse than thresholds for spatial vision. We conclude that Ternus displays are analysed via a long-range motion, or feature-tracking, process, and that this process is distinct from spatial vision

Hazard Perception and Demand for Insurance Among Selected Motorcyclists in Lagos, Nigeria

This study examines hazard perception effects on the demand for insurance withspecial focus on motorcycle riders in Lagos state. For this purpose, the researchershave been able to examine selected hazard perception determinants and theireffects on the insuring attitude and desire of motorcycle riders. An explanatoryresearch design was employed and a convenience sampling type of the nonprobabilitysampling technique was adopted.  Data was gathered by interviewsconducted at motorcycle parks along the Lagos-Badagry expressway.  The sampleconsisted of 126 respondents made up of commercial motorcycle riders within thesample areas. Data collected was analysed using multiple regression technique.The study was able to establish some level of contributory linkage between hazardperception and demand for motorcycle insurance. The findings show that whiledread and trust both appeared to have significant effect, publicity and controllabilityboth have positive contributory effect; furthermore, choice expressed an inverserelationship with demand for insurance among the motorcycle riders. The studytherefore recommends pre-loss and post-loss measures among the motorcycleriders so that unforeseen motorcycle risks can be managed. Also, insurancecompanies should endeavour to invest more on enlightening the motorcycle riders in order to lessen their dread of loss outcome, and thus, design policy that can instil trust in motorcycle riders in insurance as a loss control measure

Herbal Medicine Perception and Practice Among Childbearing Mother with Medical Education Background in Bandung: a Preliminary Study

Herbal medicine has been widely used among Indonesians as an alternative medicine to chemical based drugs. However, there is still a doubt about its effectiveness and efficiency. Many studies report that natural side of herbal medicine has healthier effect than additive or chemistry ingredient of chemical based drugs. Nowadays, there is a shifting in nurturing children among childbearing mother, including mother with medical education background, living in more nature. The aim of this study is to explore their perception and practice towards herbal medicine. Open-ended questionnaires were online distributed among 30 childbearing mothers with medical education background and analyzed using descriptive method. The result shows that 73% of respondents use herbal medicine such as honey (33.3%), onion (13.3%), lime (13.3%), etc. The less side-effect is a strongest point of their USAges (45%), followed by mild illness treatment (36%), and natural ingredient (18%). Those respondents admitted the symptoms were reduced after using herbal medicine, but 81.6% of them would use chemical drugs when the symptoms persisted. Twenty seven percent of the respondents never used herbal medicine because of complicated preparation and unclear effect. However, the entire respondents said chemical drugs have a clear effect, and its effectiveness and efficiency even better than herbal medicine. Hence, it can be concluded that most respondents even though have medical knowledge would use herbal medicine on first medication for their children rather than chemical based drug

Priscian on Perception

An aporia posed by Theophrastus prompts Priscian to describe the process by which perception formally assimilates to its object as a progressive perfection. I present an interpretation of Priscian’s account of perception’s progressive perfection. And I consider a dilemma for the general class of accounts to which Priscian’s belongs based on related problems raised by Plotinus and Aquinas

Toward an ecological aesthetics: music as emergence

In this article we intend to suggest some ecological based principles to support the possibility of develop an ecological aesthetics. We consider that an ecological aesthetics is founded in concepts as “direct perception”, “acquisition of affordances and invariants”, “embodied embedded perception” and so on. Here we will purpose that can be possible explain especially soundscape music perception in terms of direct perception, working with perception of first hand (in a Gibsonian sense). We will present notions as embedded sound, detection of sonic affordances and invariants, and at the end we purpose an experience with perception/action paradigm to make soundscape music as emergence of a self-organized system

Farmers\u27 Perception on the Performance of Different Rice Varieties in Kapilvastu District, Nepal

Rice is the major staple food crop in Nepal. To date, several rice varieties have been developed and released in Nepal. However, rice production is far below in comparison with its production potential. A household survey was conducted in Bangaganga municipality of Kapilvastu district in 2018 to assess farmers\u27 perception on performance of four different rice varieties (Radha-4, Ramdhan, Gorakhnath, and Sawa). The data were collected from a total of 120 rice farmers (randomly selected) using the interview schedule and analyzed using descriptive statistics, Likert scale, and indexing technique. Statistical analysis showed that the Ramdhan variety had the highest yield (4.95 t/ha), whereas Radha-4 had the lowest yield (3.15 t/ha). The most disease and drought-tolerant variety, as perceived by the farmers, was Radha-4. Smut and Khaira were perceived as the primary diseases whereas Brown planthopper and Rice Gundhi bug were the most important insects of all studied rice varieties. The study recommended that the plant breeders should focus on developing site-specific rice varieties to meet the multiple concerns of the farmers, such as higher yield and stress-tolerant. The farmers should be made aware of varietal selection and crop pest management techniques via training programs, which further helps to reduce the yield gap between farmers\u27 field and research field

Concepts, Belief, and Perception

At least in one well-motivated sense of ‘concept’, all perception involves concepts, even perception as practiced by lizards and bees. That is because—the paper argues—all perception involves belief

Student\u27s Perception and Attitudes Toward Public Health Profession and National Competency Examination

One form of quality assurance is convening public health\u27s national competencies examination in academic phase which is conducted before students graduate from university. The purpose of this study was to determine students\u27s perceptions and attitudes about public health\u27s profession and national competencies examination. The design of this study was descriptive qualitative employed case study approach. Focus group discussion was used to collect data. Data were analyzed by content analysis. Students felt less confident about their identity profession so that requires motivation by lecturer. Students expressed the need to improve public health graduates\u27s competencies since academic phase. National competencies examination is important to do as a solution to guarantee the graduates\u27s quality. Implementation of the competencies test is need to consider aspects of management and technical readiness. National competencies examination is a tool that could proves the identity of public health graduates\u27s competencies. Everyone with a public health background should know that there will be a competency test then they should have an adequate preparation