Perception Of Students On The Apple Smartphone As A Lifestyle

This study aims to determine the perception of communication science students towards the Apple Smartphone brand as a lifestyle. This study uses the theory of Jean Boudrillard. Data collection was carried out by means of in-depth interviews and observations, supported by relevant literature by focusing on communication science students at the Muhammadiyah Sidoarjo university. The method used is purposive sampling, this technique uses informants who have been determined or have predetermined criteria to support this research. The results of the discussion above can be concluded that students' perceptions of smartphones as a lifestyle are divided into the following processes, one, perceptual selection occurs when students remember that iPhone users will look more visible or high-class than other smartphone users, and make users more confident. Second, the student perception organization collects information from various sources to be understood in order to consider whether to buy or not, so that they will not be disappointed with the items they buy. Third, the interpretation of the stimulus describes the meaning of the Apple smartphone as a brand that provides an identity for its users.

Persistent Hemispheric Differences in the Perceptual Selection of Spatial Frequencies

Previous research has shown that the right hemisphere processes low spatial frequencies more efficiently than the left hemisphere, which preferentially processes high spatial frequencies. These studies have typically measured RTs to single, briefly flashed gratings and/or have directed observers to attend to a particular spatial frequency immediately before making a judgment about a subsequently presented stimulus. Thus, it is unclear whether the hemispheres differ in perceptual selection from multiple spatial frequencies that are simultaneously present in the environment, without bias from selective attention. Moreover, the time course of hemispheric asymmetry in spatial frequency processing is unknown. We addressed both of these questions with binocular rivalry, a measure of perceptual selection from competing alternatives over time. Participants viewed a pair of rivalrous orthogonal gratings with different spatial frequencies, presented either to the left or right of central fixation, and continuously reported which grating they perceived. At the beginning of a trial, the low spatial frequency grating was perceptually selected more often when presented in the left hemifield (right hemisphere) than in the right hemifield (left hemisphere), whereas the high spatial frequency grating showed the opposite pattern of results. This hemispheric asymmetry in perceptual selection persisted for the entire 30-sec stimulus presentation, continuing long after stimulus onset. These results indicate stable differences in the resolution of ambiguity across spatial locations and demonstrate the importance of considering sustained differences in perceptual selection across space when characterizing conscious representations of complex scenes.

The relationship between visual working memory and attention: retention of precise colour information in the absence of effects on perceptual selection

We examined the conditions under which a feature value in visual working memory (VWM) recruits visual attention to matching stimuli. Previous work has suggested that VWM supports two qualitatively different states of representation: an active state that interacts with perceptual selection and a passive (or accessory) state that does not. An alternative hypothesis is that VWM supports a single form of representation, with the precision of feature memory controlling whether or not the representation interacts with perceptual selection. The results of three experiments supported the dual-state hypothesis. We established conditions under which participants retained a relatively precise representation of a parcticular colour. If the colour was immediately task relevant, it reliably recruited attention to matching stimuli. However, if the colour was not immediately task relevant, it failed to interact with perceptual selection. Feature maintenance in VWM is not necessarily equivalent with feature-based attentional selection.