Gaze behavior and affect at 6 months: predicting clinical outcomes and language development in typically developing infants and infants at risk for autism

This paper presents follow‐up longitudinal data to research that previously suggested the possibility of abnormal gaze behavior marked by decreased eye contact in a subgroup of 6‐month‐old infants at risk for autism ( Merin, Young, Ozonoff & Rogers, 2007 ). Using eye‐tracking data and behavioral data recorded during a live mother–infant interaction involving the still‐face procedure, the predictive utility of gaze behavior and affective behaviors at 6 months was examined using diagnostic outcome data obtained longitudinally over the following 18 months. Results revealed that none of the infants previously identified as showing lower rates of eye contact had any signs of autism at outcome. In contrast, three infants who were diagnosed with autism demonstrated consistent gaze to the eye region and typical affective responses at 6 months. Individual differences in face scanning and affective responsivity during the live interaction were not related to any continuous measures of symptom frequency or symptom severity. In contrast, results of growth curve models for language development revealed significant relationships between face scanning and expressive language. Greater amounts of fixation to the mother's mouth during live interaction predicted higher levels of expressive language at outcome and greater rates of growth. These findings suggest that although gaze behavior at 6 months may not provide early markers for autism as initially conceived, gaze to the mouth in particular may be useful in predicting individual differences in language development.     

Analyzing Machine-Learned Representations: A Natural Language Case Study

As modern deep networks become more complex, and get closer to human-like capabilities in certain domains, the question arises as to how the representations and decision rules they learn compare to the ones in humans. In this work, we study representations of sentences in one such artificial system for natural language processing. We first present a diagnostic test dataset to examine the degree of abstract composable structure represented. Analyzing performance on these diagnostic tests indicates a lack of systematicity in representations and decision rules, and reveals a set of heuristic strategies. We then investigate the effect of training distribution on learning these heuristic strategies, and we study changes in these representations with various augmentations to the training set. Our results reveal parallels to the analogous representations in people. We find that these systems can learn abstract rules and generalize them to new contexts under certain circumstances—similar to human zero-shot reasoning. However, we also note some shortcomings in this generalization behavior—similar to human judgment errors like belief bias. Studying these parallels suggests new ways to understand psychological phenomena in humans as well as informs best strategies for building artificial intelligence with human-like language understanding.     

Estimating the heritability of cognitive traits across dog breeds reveals highly heritable inhibitory control and communication factors

Animal Cognition - Trait heritability is necessary for evolution by both natural and artificial selection, yet we know little about the heritability of cognitive traits. Domestic dogs are a...     

Summation,Variety, and Indeterminate Value

In this paper, I consider two sorts of objections to summative theories of value. The first objection concerns “indeterminate” value. The second concerns the importance of variety. I argue that both objections pose serious problems for the summative approach. I also argue that if we accept certain plausible views about the value of variety, we should reject certain forms of argument concerning what sorts of states have intrinsic value.     

This time it’s personal: the memory benefit of hearing oneself

The production effect is the memory advantage of saying words aloud over simply reading them silently. It has been hypothesised that this advantage stems from production featuring distinctive information that stands out at study relative to reading silently. MacLeod (2011) (I said, you said: The production effect gets personal. Psychonomic Bulletin & Review, 18, 1197–1202. doi:10.3758/s13423-011-0168-8) found superior memory for reading aloud oneself vs. hearing another person read aloud, which suggests that motor information (speaking), self-referential information (i.e., “I said it”), or both contribute to the production effect. In the present experiment, we dissociated the influence on memory of these two components by including a study condition in which participants heard themselves read words aloud (recorded earlier) – a first for production effect research – along with the more typical study conditions of reading aloud, hearing someone else speak, and reading silently. There was a gradient of memory across these four conditions, with hearing oneself lying between speaking and hearing someone else speak. These results imply that oral production is beneficial because it entails two distinctive components: a motor (speech) act and a unique, self-referential auditory input.     

Kane and the Physical Indeterminism Luck Objection: A Reply to Moore

Philosophia - Dwayne Moore (2021) argues that libertarians about free will who are reductive physicalists cannot make proper sense of free will. In doing so, he presents what he calls “the...     

Editorial

The Journal of Ethics -     

Sexuality among wounded veterans of Operation Enduring Freedom (OEF), Operation Iraqi Freedom (OIF), and Operation New Dawn (OND): Implications for rehabilitation psychologists

OBJECTIVE: The sexual lives of returning Operation Enduring Freedom (OEF), Operation Iraqi Freedom (OIF), and Operation New Dawn (OND) veterans have only been discussed minimally in the psychological literature. Given the nature of military social and cultural contexts, the potential for exposure to combat-related stressors that may lead to posttraumatic stress disorder (PTSD), and the risk of traumatic brain injury secondary to physical injury, the potential for significant psychological and relational ramifications exists. This article focuses on the intimate relationships and sexuality of returning OIF/OEF/OND veterans within the context of their personal cultural variables and the diverse experience of being a part of military life. CONCLUSIONS: Culturally competent assessment and evidenced-based treatment approaches are highlighted to offer clinicians initial strategies to begin treatment of sexuality issues within the returning Veteran population. These clinical tools are discussed within a positive psychology approach that emphasizes healthy sexuality as a part of overall satisfactory quality of life.