Actions speak louder than words: Differences in memory flexibility between monolingual and bilingual 18‐month‐olds

Bilingual infants from 6‐ to 24‐months of age are more likely to generalize, flexibly reproducing actions on novel objects significantly more often than age‐matched monolingual infants are. In the current study, we examine whether the addition of novel verbal labels enhances memory generalization in a perceptually complex imitation task. We hypothesized that labels would provide an additional retrieval cue and aid memory generalization for bilingual infants. Specifically, we hypothesized that bilinguals might be more likely than monolinguals to map multiple perceptual features onto a novel label and therefore show enhanced generalization. Eighty‐seven 18‐month‐old monolingual and bilingual infants were randomly assigned to one of two experimental conditions or a baseline control condition. In the experimental conditions, either no label or a novel label was added during demonstration and again at the beginning of the test session. After a 24‐hr delay, infants were tested with the same stimulus set to test cued recall and with a perceptually different but functionally equivalent stimulus set to test memory generalization. Bilinguals performed significantly above baseline on both cued recall and memory generalization in both experimental conditions, whereas monolinguals performed significantly above baseline only on cued recall in both experimental conditions. These findings show a difference between monolinguals and bilinguals in memory generalization and suggest that generalization differences between groups may arise from visual perceptual processing rather than linguistic processing. A video abstract of this article can be viewed at https://youtu.be/yXB4pM3fF2k     

Dominance assertion in male chimpanzees (Pan troglodytes)

The social relations of three adult males in a captive chimpanzee group were evaluated for 12 months. The observations encompassed a period of transition in the dominance hierarchy providing an opportunity to assess behavioral patterns involved in the initiation of status changes. This study shows that dominance in the chimpanzee is expressed primarily through ritualized and non-contact behavior rather than by overt aggression. In particular, display behavior is important for indicating dominance rank, in communicating aggressive intent, and as a prelude to status struggles. The functional relationships between status, displays and other socio-sexual behavior patterns are presented.     

Parting gifts: termination rituals in group therapy

A patient's termination from group therapy is a powerful experience for the departing patient, the therapist, and all group members. Unless the feelings evoked are channeled into constructive expression, they may undermine this potentially valuable phase of both the departing patient's group treatment and the life of the group as a whole. A termination ritual, styled by a particular patient according to his or her own need, therapy goals, and personality may help the patient achieve a more clearly defined sense of self. The authors suggest that the group therapist's careful attunement to and thorough exploration of the significance of any termination ritual or gift will help to extract maximum therapeutic benefit for the departing member and the group as a whole.     

Two-year-olds' search strategies and visual tracking in a hidden displacement task

Children younger than 3 years have difficulty with search tasks that involve hidden displacement. Partial visual information was provided about a ball's path as it moved toward a hiding place. Children (2.0 and 2.5 years old) saw a ball rolling down a ramp placed behind a transparent screen with 4 opaque doors. A wall, placed on the ramp and directly behind 1 of the doors, protruded above the screen and stopped the ball. Children were asked to find the ball. The transparency of the screen permitted visual tracking of the ball between the doors, but its final resting place was obscured. Both age groups were equally proficient at tracking the ball as it rolled behind the screen, but the 2.5-year-olds were more likely to reach to the correct door. Looking behavior was related to errors in the younger group in that tracking that stopped short or continued past the correct door was associated with incorrect choices.     

Dimensions of depression and perfectionism in pregnant and nonpregnant women: their levels and interrelationships and their relationship to marital satisfaction

The authors studied S. J. Blatt's (1974) 2 dimensions of depression (anaclitic and introjective), P. L. Hewitt and G. L. Flett's (1991b) 3 dimensions of perfectionism (socially prescribed, self-oriented, and other-oriented), and the relationship between these and marital satisfaction in 100 married women in the last trimester of their first pregnancy and in 50 married women who had not yet experienced pregnancy. The measures used were the Depressive Experiences Questionnaire (S. J. Blatt, J. P. D'Afflitti, & D. M. Quinlan. 1976a, 1976b), the Multidimensional Perfectionism Scale (P. L. Hewitt & G. L. Flett, 1989), and G. B. Spanier's (1976) Dyadic Adjustment Scale. Pregnant and nonpregnant women did not differ in anaclitic depression, but the level of introjective depression of pregnant women was lower than that of nonpregnant women. The two groups did not differ in level of marital satisfaction or in any of the dimensions of perfectionism. For both groups, introjective depression was positively correlated with socially prescribed perfectionism and negatively correlated with marital satisfaction. Self-oriented perfectionism was positively related to introjective depression and negatively related to marital satisfaction for nonpregnant women. For the pregnant women, there was a negative relationship between socially prescribed perfectionism and marital satisfaction. Anaclitic depression and other-oriented perfectionism were unrelated to any of the other variables studied.     

Anxiety-related bias in the classification of emotionally ambiguous facial expressions

High- and low-trait socially anxious individuals classified the emotional expressions of photographic quality continua of interpolated ("morphed") facial images that were derived from combining 6 basic prototype emotional expressions to various degrees, with the 2 adjacent emotions arranged in an emotion hexagon. When fear was 1 of the 2 component emotions, the high-trait group displayed enhanced sensitivity for fear. In a 2nd experiment where a mood manipulation was incorporated, again, the high-trait group exhibited enhanced sensitivity for fear. The low-trait group was sensitive for happiness in the control condition. The mood-manipulated group had increased sensitivity for anger expressions, and trait anxiety did not moderate these effects. Interpretations of the results related to the classification of fearful expressions are discussed.     

Using brief experimental assessment of reading interventions for identification and treatment of a vocal habit

An 11-year-old boy presented in an outpatient clinic with a vocal habit that occurred during reading and conversation. A brief reading assessment was conducted to determine an effective intervention to decrease the habit. A modified version of the word error-correction procedure resulted in positive changes and was implemented by his mother during home reading practices. Significant decreases in the rate of vocal habit were observed during home reading probes, generalization probes, and follow-up.     

Contrast effects or loss aversion? Comment on Usher and McClelland (2004)

M. Usher and J. L. McClelland (2004) recently proposed a new connectionist type of model to explain context effects on preferential choice including the similarity, attraction, and compromise effects. They compared their model with an earlier connectionist type model for these same effects proposed by R. Roe, J. R. Busemeyer, and J. T. Townsend (2001) and raised several new issues. The authors address these issues and point out the main theoretical differences between the 2 explanations for context effects.     

Explicit Instruction With or Without High-<Emphasis Type="Italic">p</Emphasis> Sequences: Which is More Effective to Teach Multiplication Facts?

Basic fact acquisition is an important component for developing higher-order math skills. However, getting students with a history of academic noncompliance to engage in activities related to skills acquisition can be difficult. Prior research demonstrates that engagement increases when nonpreferred activities are preceded by a series of brief activities with a high probability of completion. This technique, called high-p task/request sequences, was not fully explored within the context of skill acquisition. The purpose of this study was to examine the effects of adding high-p sequences to explicit instruction on the math fact acquisition of three elementary-age students in a learning support classroom. Results showed no differences in fact acquisition between explicit instruction and explicit instruction with an added high-p component. However, the high-p sessions took nearly twice as long to complete when compared to explicit instruction alone. Implications for instructional efficiency and limitations of the high-p procedures for acquisition tasks are discussed.