Attention effects during visual short-term memory maintenance: protection or prioritization?

Interactions between visual attention and visual short-term memory (VSTM) play a central role in cognitive processing. For example, attention can assist in selectively encoding items into visual memory. Attention appears to be able to influence items already stored in visual memory, as well; cues that appear long after the presentation of an array of objects can affect memory for those objects (Griffin & Nobre, 2003). In five experiments, we distinguished two possible mechanisms for the effects of cues on items currently stored in VSTM. A protection account proposes that attention protects the cued item from becoming degraded during the retention interval. By contrast, aprioritization account suggests that attention increases a cued item's priority during the comparison process that occurs when memory is tested. The results of the experiments were consistent with the first of these possibilities, suggesting that attention can serve to protect VSTM representations while they are being maintained.     

The Experiences of Indigenous Australian Psychologists at University

Disparities exist between Indigenous Australians and non‐Indigenous Australians on indicators of life expectancy, alcohol and drug use, adult and juvenile incarceration, and rates of hospitalisation for self‐harm, suicide, and mental and behavioural disorders due to psychoactive substance use. Psychology is a discipline that can assist in remedying these issues, yet disparities are evident in Indigenous participation in higher education generally, as well as within tertiary psychology education specifically. Ten Indigenous Australian psychologists were interviewed to investigate possible barriers and enablers for Indigenous students studying psychology at university. Hermeneutic phenomenology guided the research and its analysis, whereby the data went through a process known as the “hermeneutic circle”; data were analysed in itself, as well as part of the whole, leading to the world views of the participant and researcher converging into a “horizon of meaning.” Sources of support for Indigenous students included family support, financial assistance, and Indigenous student support centres. Potential barriers to university study of psychology were negative conceptions of higher education and psychology by the Indigenous community, “culture shock” upon relocating to the metropolitan area, a lack of Indigenous content and staff, and culturally insensitivity by staff members. Efforts should be made to address these barriers to participation, as well as to support those structures and services that were supportive for students.     

The Effects of Anxiety and Depressive Symptoms on Daily Positive Emotion Regulation

Individuals with anxiety and depressive symptoms exhibit disturbances in positive emotion regulation, which may hinder full recovery. By comparison, individuals with strong beliefs regarding their capacity to “savor” or maintain positive emotions (i.e., savoring beliefs) display more adaptive positive emotion regulation. The present daily diary study explores three momentary processes involved in positive emotion regulation, namely positive emotion reactivity, regulatory goals, and regulatory effectiveness, and examines the comparative effects of baseline anxiety and depressive symptoms versus savoring beliefs on such processes in real-life contexts. A sample of 164 nonclinical undergraduates provided baseline measures of anxiety and depressive symptom severity and savoring beliefs prior to completing 14 daily assessments of positive emotions and emotion regulatory responses to daily positive events. Results indicated that higher baseline anxiety and depressive symptom severity were associated with decreased positive emotion reactivity and increased down-regulation of positive emotions; higher baseline savoring beliefs were associated with increased positive emotion reactivity, decreased down-regulation and increased up-regulation of positive emotions. Potential clinical implications are discussed.     

Antiphasis as Homonym in Aristotle

Antiphasis is a case of core-dependent homonymy, and has three significations in Aristotle's philosophy: (1) antiphasis as an opposition between propositions (a propositional signification); (2) antiphasis as the opposition between ‘subject’ and ‘not a subject’ in coming-to-be and perishing (an ontological signification); and (3) antiphasis as the opposition between possession and privation (an ontological signification). Argument based on the fifth type of priority described in Cat. 12 shows that, for Aristotle, the ontological significations are prior to the propositional.