IntroductionThe abnormal hyperreactivity to food cues in individuals with binge eating behaviors could be regulated by hedonic or reward-based system, overriding the homeostatic system. The aim of the present study was to investigate whether attentional bias for food cues is affected by the level of hunger, maintaining the normal homeostatic system in individuals with binge eating behaviors.MethodsA total of 116 female participants were recruited and divided into four groups: hungry-binge eating group (BE) (n = 29), satiated BE (n = 29), hungry-control (n = 29), satiated control (n = 29). While participants completed a free-viewing task on high or low-calorie food cues, visual attentional processes were recorded using an eye tracker.ResultsThe results revealed that BE group showed longer initial fixation duration toward high-calorie food cues in both hunger and satiety condition in the early stage, whereas the control group showed longer initial fixation duration toward high-calorie food cues only in hunger conditions. Moreover, in the late stage, the BE group stared more at the high-calorie food cue, compared to control group regardless of hunger and satiety.DiscussionThe findings suggest that automatic attentional bias for food cues in individuals with binge eating behaviors occurred without purpose or awareness is not affected by the homeostatic system, while strategic attention is focused on high-calorie food. Therefore, the attentional processing of food cues in binge eating group is regulated by hedonic system rather than homeostatic system, leading to vulnerability to binge eating.
The weapon focus effect is defined as eyewitnesses focus more on weapons than other details(e.g., perpetrator) of the crime scene which cause memory bias. The present study investigated how the presence of a weapon affects the visual attention and memory of the eyewitness. Participants were randomized within two groups: the weapon focus effect condition(WC) and the novelty condition(NC). The participants' visual attention pattern(dwell time) was measured while participants were observing the interaction between the two individuals(clerk and customer) at the mock crime slide show. At the end of the experiment, the participants were asked about what they saw on the slide show. As a result, it was confirmed that the weapon condition showed a different attention pattern from those in the non-weapon condition. Overall, both groups were found to spend more time on target objects(knife/cashier's check), but WC participants spent longer time on clerks when weapons were presented than NC participants. On the other hand, in both groups, there was no difference in memory. This study provided evidence for the visual attention patterns of eyewitnesses at simulated crime scenes with weapons.
The body swapping illusion is a perceptual phenomenon in which one perceives a virtual (or another) body as being one’s own. The aim of this study was to investigate the effects of mental rehearsal on the generation of the body swapping illusion. Participants were 58 male undergraduate students. Participants were randomly assigned to either the physical rehearsal (n=20), mental rehearsal (n=18), or control condition (n=20). There were no significant differences in state and trait anxiety, simulator sickness, or immersive tendencies between groups, but there were significant differences in the body swapping illusion and a sense of presence between conditions. Subsequent post-hoc analyses revealed that the body swapping illusion was significantly greater in the physical and mental rehearsal conditions than the control condition, and the sense of presence was significantly greater in the physical rehearsal than in the control condition. In conclusion, we found that mental rehearsal exerted similar effects as physical rehearsal ingenerating the illusion of body swapping. This suggests that generating the illusion of body swapping through mental rehearsal may be applicable in clinical settings.
Background Although active research is in progress in the fields of psychology and linguistics on the emotional characteristics of the symbol and meaning of sound itself, since the systematic emotional model is not applied, each researcher uses a subjective concept and acts as an obstacle to the expansion of research. There is a limitation in that it cannot be confirmed whether the sound symbol has universality regardless of cultural differences between different languages. Methods In this study, the difference between the arousal and valence of emotions felt toward Hangul phonemes was explored according to consonant and vowel through comparison between Korean and Chinese women. 38 Korean women and 32 Chinese women were recruited, and an online experiment was conducted in which arousal and valence were reported for 42 Hangeul phoneme sound stimuli. Results As a result of comparing the arousal and valence of each group, Koreans showed significantly higher arousal scores than Chinese, and these results showed different differences according to consonant and vowel. In valence, there was a difference between nationalities only according to consonant indicating that Koreans showed lower positivity toward aspirated sounds than Chinese. Through these results, it was confirmed that the emotional meaning of the sound symbol between different languages is different, which can be affected by consonant and vowels. Conclusion This study identified differences in emotional perception between cultures by using two dimensions of emotions, arousal, and valence, which are systematized for sound symbols, and suggests implications for the relationship between sound symbol and emotions and cultural differences in the future.
Attentional patterns towards signs of smoking area might be different on individual levels. This would play a significant role in the decision-making process of illegal smoking behavior. In order to understand and effectively intervene the such behavior, this study aims to investigate the attentional pattern of the legal and illegal smokers toward the area signs (e.g. smoking area vs. no-smoking area) using a free viewing task and eye-tracking method. The participants were grouped into 25 legal smokers groups (LSG) and 15 illegal smokers groups (ISG) based on their usual smoking spots specified in the self-report questionnaire. During the free-viewing task where their visual attentional pattern was measured by an eye-tracking method, the participants were presented with eight pictorial stimuli with the area signs and the smoking-related cues. To examine the initial orientation process, the initial fixation latency, total dwell time, and dwell time by time blocks were analyzed for the smoking area signs. As a result, while LSG showed faster initial fixation toward the smoking area signs than no-smoking area signs, ISG did not. Also, LSG showed higher proportion of initial visual attention to smoking area signs. These findings suggest that the initial orienting attentional pattern of LSG toward the area signs might play a significant role in the legal smoking behavior.
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