Illusory line linking solid rods

A solid object--a frame enclosing rods--can be seen as having an illusory 'line' joining the tips of the rods.     

Incorporating Demographic Embeddings Into Language Understanding

Meaning depends on context. This applies in obvious cases like deictics or sarcasm as well as more subtle situations like framing or persuasion. One key aspect of this is the identity of the participants in an interaction. Our interpretation of an utterance shifts based on a variety of factors, including personal history, background knowledge, and our relationship to the source. While obviously an incomplete model of individual differences, demographic factors provide a useful starting point and allow us to capture some of this variance. However, the relevance of specific demographic factors varies between situations—where age might be the key factor in one context, ideology might dominate in another. To address this challenge, we introduce a method for combining demographics and context into situated demographic embeddings—mapping representations into a continuous geometric space appropriate for the given domain, showing the resulting representations to be functional and interpretable. We further demonstrate how to make use of related external data so as to apply this approach in low‐resource situations. Finally, we show how these representations can be incorporated into improve modeling of real‐world natural language understanding tasks, improving model performance and helping with issues of data sparsity.     

The relationship between infanticide and pregnancy block in mice

Newly pregnant mice are more likely to exhibit pregnancy block when females are exposed to infanticidal males rather than to noninfanticidal males. These data suggest that females are able to assess the risk to their future infants and adjust their reproductive tactic. Those females that did not exhibit pregnancy block in the presence of infanticidal males suffered a greater loss of pups than those in the presence of noninfanticidal males, demonstrating the advantage of pregnancy block. Females served by infanticidal or noninfanticidal males showed no difference in pregnancy block, but if the litter was produced, there was a greater loss of pups sired by infanticidal males.     

The Effect of Warnings to Timeout on Child Compliance to Parental Instructions

ABSTRACT

One common component of behavioral parent training packages is the use of a warning prior to implementation of a timeout following noncompliance to parental instructions. The primary purpose of this research was to evaluate the effects of warnings on compliance. An alternating treatments design was used to evaluate compliance to warned versus unwarned timeouts with three typically developing children. All participants showed a significant increase in compliance upon implementation of the timeout package, either with or without a warning. However, compliance decreased over time in the Warning condition for two participants and increased in variability for a third. All participants had more timeouts in the No Warning condition. Results also showed preliminary evidence for parental preference of Warned timeouts. Implications are discussed.