青少年网络受欺负与网络欺负：攻击规范信念与自我控制双系统的作用

采用问卷调查法,以武汉市619名中学生为研究对象,探讨网络受欺负对网络欺负的影响及其作用机制。结果：①网络受欺负正向预测网络欺负;②攻击规范信念在网络受欺负对网络欺负的影响中起部分中介作用;③网络受欺负对网络欺负的直接效应受到自我控制双系统中控制系统的调节：网络受欺负对网络欺负的预测作用在控制力较低的青少年中更显著。研究揭示了网络受欺负与网络欺负的作用机制,有助于从自我控制角度进行的干预。     

Comparative Optimism,Self-Superiority,Egocentric Impact Perception and Health Information Seeking: A COVID-19 Study

We examined perceived self-other differences (self-uniqueness) in appraisals of one’s risk of an infectious disease (COVID-19), one’s adherence to behavioural precautionary measures against the disease, and the impact of these measures on one’s life. We also examined the relationship of self-uniqueness with information seeking and trust in sources of information about the disease. We administered an online survey to a community sample (N = 8696) of Dutch-speaking individuals, mainly in Belgium and The Netherlands, during the first lockdown (late April-Mid June 2020). As a group, participants reported that they were less likely to get infected or infect others or to suffer severe outcomes than average (unrealistic optimism) and that they adhered better than average to behavioural precautionary measures (illusory superiority). Except for participants below 25, who reported that they were affected more than average by these measures (egocentric impact bias), participants also generally reported that they were less affected than average (allocentric impact bias). Individual differences in self-uniqueness were associated with differences in the number of information sources being used and trust on these sources. Higher comparative optimism for infection, self-superiority, and allocentric impact perception were associated with information being sought from fewer sources; higher self-superiority and egocentric impact perception were associated with lower trust. We discuss implications for health communication.     

Ability and Knowing How in the Situation Calculus

Most agents can acquire information about their environments as they operate. A good plan for such an agent is one that not only achieves the goal, but is also executable, i.e., ensures that the agent has enough information at every step to know what to do next. In this paper, we present a formal account of what it means for an agent to know how to execute a plan and to be able to achieve a goal. Such a theory is a prerequisite for producing specifications of planners for agents that can acquire information at run time. It is also essential to account for cooperation among agents. Our account is more general than previous proposals, correctly handles programs containing loops, and incorporates a solution to the frame problem. It can also be used to prove programs containing sensing actions correct.     

I think,therefore I am? Examining conceptions of the self,soul, and mind

In order to delineate among conceptions of the self, soul, and mind, participants reported where they believe these entities are located in the body and provided definitions of each entity. Results indicated that most people consider the self, soul, and mind localized in specific regions in the body. In contrast to previous research, however, some participants reported that the self is not centralized in one location. Participants tended to locate the self and mind in the head and the soul in the chest. The self and mind were commonly defined in mental terms and the soul as one’s essence. These results suggest that people tend to distinguish the soul from the mind, both in how they define each entity and where they locate them in the body. Although some people locate the soul in the same region as the self, most people more closely align the mind with the self.     

Cerebral blood flow differences between long-term meditators and non-meditators

We have studied a number of long-term meditators in previous studies. The purpose of this study was to determine if there are differences in baseline brain function of experienced meditators compared to non-meditators. All subjects were recruited as part of an ongoing study of different meditation practices. We evaluated 12 advanced meditators and 14 non-meditators with cerebral blood flow (CBF) SPECT imaging at rest. Images were analyzed with both region of interest and statistical parametric mapping. The CBF of long-term meditators was significantly higher (p < .05) compared to non-meditators in the prefrontal cortex, parietal cortex, thalamus, putamen, caudate, and midbrain. There was also a significant difference in the thalamic laterality with long-term meditators having greater asymmetry. The observed changes associated with long-term meditation appear in structures that underlie the attention network and also those that relate to emotion and autonomic function.     

Evaluation of the effectiveness of mindfulness-based cognitive therapy to treat chronic insomnia

IntroductionAs having positive effects on reducing distress and symptoms associated with different mental and physical disorders, many studies have focused on mindfulness-based cognitive therapy.ObjectiveIt is suggested that mindfulness-based cognitive therapy (MBCT) could help reducing insomnia by focusing on certain cognitive factors associated to insomnia.MethodA pre-experimental, pre-test protocol with a post-test and three month follow-up was used to measure the effect of a group intervention of eight sessions and 12 participants.ResultsThe intervention had a positive effect on participants’ subjective evaluation regarding their sleep and the gains were maintained after three months. However, after the intervention, no significant effect was found on the objective measures of sleep. Two factors associated to the maintenance of insomnia, such as dysfunctional beliefs and attitudes about sleep and mental control strategies were improved following treatment and these improvements were maintained during the follow-up.ConclusionThe results of this study suggest that mindfulness-based cognitive therapy might be an interesting addition in the treatment of insomnia, given that it focuses on certain cognitive factors that contribute to the maintenance of insomnia.     

Carers’ beliefs about counselling: a community participatory study in Wales

This interpretivist community participatory study explores carers’ beliefs about the potential usefulness of counselling in relation to the caring role. Twenty semi-structured interviews with carers were transcribed and analysed thematically. All participants thought counselling could potentially be helpful to carers, but their ideas about the ways in which it would help varied according to whether or not they had personal experience of counselling. Only carers with counselling experience had an awareness of counselling as focussing on changing feelings, thoughts, attitudes and behaviours. The implications of the findings for the provision of counselling services are discussed.     

Links between rational and irrational beliefs,trait anxiety and fear of COVID 19

IntroductionOur beliefs and knowledge influence the way we act, react, or adapt to an aversive situation such as the current COVID-19 pandemic. The purpose of this study is to explore factors that may influence perceived fear of COVID-19.MethodologyThree hundred and forty-two people from the general population participated in this study. The participants completed an online anamnestic questionnaire that included questions regarding feelings of vulnerability to illness, fear of COVID-19, rational and irrational beliefs about COVID-19, and trait anxiety.ResultsA stepwise regression analysis showed that trait anxiety, irrational and rational beliefs, and having comorbidities linked to severe forms of the disease were associated with perceived vulnerability concerning health and fear of COVID-19.DiscussionThis study seems to underline the importance of pre-existing vulnerabilities that were exacerbated during the pandemic.     

Self-knowledge,belief, ability (and agency?)

Matthew Boyle [(2011). “Transparent Self-Knowledge.” Aristotelian Society Supplementary Volume 85 (1): 223–241. doi:10.1111/j.1467-8349.2011.00204.x] has defended an account of doxastic self-knowledge which he calls “Reflectivism”. I distinguish two claims within Reflectivism: (A) that believing that p and knowing oneself to believe that p are not two distinct cognitive states, but two aspects of the same cognitive state, and (B) that this is because we are in some sense agents in relation to our beliefs. I find claim (A) compelling, but argue that its tenability depends on how we view the metaphysics of knowledge, something Boyle does not consider. I argue that in the context of the standard account of knowledge as a kind of true belief – what I call the Belief Account of knowledge – the claim faces serious problems, and that these simply disappear if we instead adopt an Ability Account of knowledge, along the lines of that defended by John Hyman [(1999). “How knowledge Works.” The Philosophical Quarterly 49 (197): 433–451; John Hyman (2015). Action, Knowledge, and the Will. Oxford: Oxford University Press]. I find claim (B) less compelling, and a secondary aim of the paper is to suggest that once we reject the Belief Account of knowledge, and move over to an Ability Account, there is no explanatory role for (B) left to play.     

A Trajectory Approach to Causality

In this paper we propose a new approach to address the ramification problem in common-sense reasoning about action and change. We contrast the methods of McCain and Turner, Thielscher and Sandewall and, based on some of the limitations they encounter, we introduce a trajectory-based approach which keeps a history of the states through which a system evolves to characterise its dynamical state. We furnish an underlying state-transition semantics and a logic that admits an expressive, dynamical account of some typical scenarios which encounter modelling difficulties in the other approaches mentioned.