Young children interpret number gestures differently than nonsymbolic sets

Researchers have long been interested in the origins of humans’ understanding of symbolic number, focusing primarily on how children learn the meanings of number words (e.g., “one”, “two”, etc.). However, recent evidence indicates that children learn the meanings of number gestures before learning number words. In the present set of experiments, we ask whether children's early knowledge of number gestures resembles their knowledge of nonsymbolic number. In four experiments, we show that preschool children (n = 139 in total; age M = 4.14 years, SD = 0.71, range = 2.75–6.20) do not view number gestures in the same the way that they view nonsymbolic representations of quantity (i.e., arrays of shapes), which opens the door for the possibility that young children view number gestures as symbolic, as adults and older children do. A video abstract of this article can be viewed at https://youtu.be/WtVziFN1yuI

Highlights

• Children were more accurate when enumerating briefly-presented number gestures than arrays of shapes, with a shallower decline in accuracy as quantities increased.
• We replicated this finding with arrays of shapes that were organized into neat, dice-like configurations (compared to the random configurations used in Experiment 1).
• The advantage in enumerating briefly-presented number gestures was evident before children had learned the cardinal principle.
• When gestures were digitally altered to pit handshape configuration against number of fingers extended, children overwhelmingly based their responses on handshape configuration.

     

Gender differences in implicit exposure to cyber-pornography

ABSTRACT

Cyber-pornography consumption has become a widespread behavioral habit, with potential diverse outcomes for the user. Previous studies have repeatedly found that males are exposed to cyber-pornography more than females, when they are asked about it explicitly. However, perceived social acceptance of cyber-pornography consumption may dramatically bias such explicit reports. The current study aimed at better understanding gender differences in exposure to cyber-pornography using both explicit self-report measures and a new measure developed to examine exposure to cyber-pornography indirectly. The findings demonstrated gender differences in exposure to cyber-pornography in both measures. Women tended to understate the extent of their exposure. Interestingly, men showed the opposite tendency. Lastly, perceived social acceptance mediated the relationship between gender and explicit report bias. We discuss the conclusions of the current study in relation to previous theories and findings, as well as the importance of using indirect measures to study socially controversial topics such as cyber-pornography.     

A Five‐Month Longitudinal Study of Psychache and Suicide Ideation: Replication in General and High‐Risk University Students

Shneidman's (1993) model of psychache as the cause of suicide was evaluated in a 5‐month longitudinal study of psychological pain and suicide ideation. Replicating across general (N = 683) and high‐risk undergraduates (N = 262), psychache was significantly associated with suicide ideation, and change in psychache was significantly associated with change in suicide ideation. For general suicide ideation and suicide preparation, these significant results were maintained even when depression and hopelessness were statistically controlled. This research is a unique contribution being the first large‐sample longitudinal study that evaluates and supports Shneidman's psychache causal model of suicidality in general and high‐risk groups.