Pigeons (<Emphasis Type="Italic">Columba livia</Emphasis>) show change blindness in a color-change detection task

Change blindness is a phenomenon whereby changes to a stimulus are more likely go unnoticed under certain circumstances. Pigeons learned a change detection task, in which they observed sequential stimulus displays consisting of individual colors back-projected onto three response keys. The color of one response key changed during each sequence and pecks to the key that displayed the change were reinforced. Pigeons showed a change blindness effect, in that change detection accuracy was worse when there was an inter-stimulus interval interrupting the transition between consecutive stimulus displays. Birds successfully transferred to stimulus displays involving novel colors, indicating that pigeons learned a general change detection rule. Furthermore, analysis of responses to specific color combinations showed that pigeons could detect changes involving both spectral and non-spectral colors and that accuracy was better for changes involving greater differences in wavelength. These results build upon previous investigations of change blindness in both humans and pigeons and suggest that change blindness may be a general consequence of selective visual attention relevant to multiple species and stimulus dimensions.     

Barriers and facilitators of physical activity and sport participation among young transgender adults who are medically transitioning

Background: Transgender people (those who feel incongruence between the gender they were assigned at birth and their gender identity) engage in lower levels of physical activity compared to cisgender (non-transgender) people. Several factors have been shown to affect physical activity engagement in the cisgender population; however, the physical activity experiences of young transgender adults have not been explored. It is therefore the aim of the current study to understand what factors are associated with physical activity and sport engagement in young transgender adults who are medically transitioning.

Method: Semi-structured interviews were conducted with 14 young transgender adults (18–36 years) who had initiated their medical transition at a transgender health service in the United Kingdom. The data were analyzed using thematic analysis.

Results: Two main themes were identified: (1) barriers and (2) facilitators to physical activity and sport. Overall, the young transgender adults were insufficiently active due to inadequate changing facilities, body dissatisfaction, fears surrounding “passing” and not being accepted by others. At the same time, participants were motivated to engage in physical activity to increase their body satisfaction and gender congruence. However, participants felt there was a lack of safe and comfortable spaces to engage in physical activity and sport.

Conclusion: Young transgender adults who are medically transitioning experience several barriers to physical activity and sport, despite being motivated to be physically active. Initiatives to facilitate young transgender adults' ability to put their motivations into practice (i.e. to be more physically active) are needed.     

Spatial But Not Oculomotor Information Biases Perceptual Memory: Evidence From Face Perception and Cognitive Modeling

Recent research put forward the hypothesis that eye movements are integrated in memory representations and are reactivated when later recalled. However, “looking back to nothing” during recall might be a consequence of spatial memory retrieval. Here, we aimed at distinguishing between the effect of spatial and oculomotor information on perceptual memory. Participants’ task was to judge whether a morph looked rather like the first or second previously presented face. Crucially, faces and morphs were presented in a way that the morph reactivated oculomotor and/or spatial information associated with one of the previously encoded faces. Perceptual face memory was largely influenced by these manipulations. We considered a simple computational model with an excellent match (4.3% error) that expresses these biases as a linear combination of recency, saccade, and location. Surprisingly, saccades did not play a role. The results suggest that spatial and temporal rather than oculomotor information biases perceptual face memory.     

CAUSATION,DISPOSITIONS, AND PHYSICAL OCCASIONALISM

Even though theistic philosophers and scientists agree that God created, sustains, and providentially governs the physical universe and even though much has been published in general regarding divine action, what is needed is a fine‐grained, conceptually coherent account of divine action, causation, dispositions, and laws of nature consistent with divine aseity, satisfying the widely recognized adequacy conditions for any account of dispositions.¹ Such an account would be a basic part of a more comprehensive theory of divine action in relation to the fundamental concepts of science and of mathematics. Our aim in this article is simply to present such a theory.     

Differences in Paradox between Islam and Christianity: a statistical comparison

Historically Islam has been recognized as a religion that is logical. Christianity has long been recognized as having a number of beliefs or doctrines that could be described as paradoxical. Sixty-nine religious doctrines or beliefs were evaluated for paradoxical content and in terms of whether Islam and Christianity agreed or disagreed with respect to each doctrine or belief. It was hypothesized that disagreement between the two religions would be much more common with respect to paradoxical doctrines or beliefs. Nearly 90% of doctrinal agreement or disagreement could be traced to the paradoxical or non-paradoxical content of the beliefs evaluated. The relationship between agreement and paradox was very significant statistically. Implications for future Christian–Muslim dialogue are discussed.     

POLANYI ON TELEOLOGY: ARESPONSETO JOHN APCZYNSKI AND RICHARD GELWICK

Abstract. Michael Polanyi criticized the neo‐Darwinian synthesis on two grounds: that accidental hereditary changes bringing adaptive advantages cannot account for the rise of discontinuous new species, and that a Ideological ordering principle is needed to explain evolutionary advance. I commend the previous articles by John Apczynski and Richard Gelwick and also argue, more strongly than they, that Polanyi's critique of evolutionary theory is flawed. It relies on an inappropriate notion of progress and untenable analogies from the human process of scientific discovery and the fact that in physical systems minimal potential energy is most stable. Yet within a life of commitment to transcendent values humans can directly experience purpose and meaning, and in developing this notion Polanyi makes his greatest contribution to teleology.     

Aristotle's Logical Works and His Conception of Logic

I provide a survey of the contents of the works belonging to Aristotle's Organon in order to define their nature, in the light of his declared intentions and of other indications (mainly internal ones) about his purposes. No unifying conception of logic can be found in them, such as the traditional one, suggested by the very title Organon, of logic as a methodology of demonstration. Logic for him can also be formal logic (represented in the main by the De Interpretatione), axiomatized syllogistic (represented in the main by the Prior Analytics) and a methodology of dialectical and rhetorical discussion. The consequent lack of unity presented by those works does not exclude that both the set of works called Analytics and the set of works concerning dialectic (Topics and Sophistici Elenchi) form a unity, and that a certain priority is attributed to the analytics with respect to dialectic.     

Separation/divorce sexual assault: The current state of social scientific knowledge

Many contend that the logical solution to woman abuse in marriage/cohabitation is for women to exit through legal separation, divorce, or other means. However, a growing body of empirical work shows that separation or divorce does not necessarily solve the problem of woman abuse. For example, in addition to experiencing lethal or nonlethal forms of physical violence and psychological abuse, many women who try to leave, or who have left their male partners, are sexually assaulted. The main objective of this paper is to critically review the extant empirical and theoretical work on separation/divorce sexual assault. Suggestions for future research and theorizing are also provided.