How learning one category influences the learning of another: intercategory generalization based on analogy and specific stimulus information

We investigated the effect of learning one category structure on the learning of a related category structure. Photograph-name combinations, called identifiers, were associated with values of four demographic attributes. Two problems were related by analogous demographic attributes, common identifiers, or both to examine the impact of common identifier, related general characteristics, and the interaction of the two variables in mediating learning transfer from one category structure to another. Problems sharing the same identifier information prompted greater positive transfer than those not sharing the same identifier information. In contrast, analogous defining characteristics in the two problems did not facilitate transfer. We computed correlations between responses to first-problem stimuli and responses to analogous second-problem stimuli for each participant. The analogous characteristics produced a tendency to respond in the same way to corresponding stimuli in the two problems. The results support an alignment between category structures related by analogous defining characteristics, which is facilitated by specific identifier information shared by two category structures.     

Neighbourhood effects on error rates in speech production

Models of speech production differ on whether phonological neighbourhoods should affect processing, and on whether effects should be facilitatory or inhibitory. Inhibitory effects of large neighbourhoods have been argued to underlie apparent anti-frequency effects, whereby high-frequency default features are more prone to mispronunciation errors than low-frequency nondefault features. Data from the original SLIPs experiments that found apparent anti-frequency effects are analysed for neighbourhood effects. Effects are facilitatory: errors are significantly less likely for words with large numbers of neighbours that share the characteristic that is being primed for error ("friends"). Words in the neighbourhood that do not share the target characteristic ("enemies") have little effect on error rates. Neighbourhood effects do not underlie the apparent anti-frequency effects. Implications for models of speech production are discussed.     

Verbalizing facial memory: criterion effects in verbal overshadowing

This article investigated the role of the recognition criterion in the verbal overshadowing effect (VOE). In 3 experiments, people witnessed an event, verbally described a perpetrator, and then attempted identification. The authors found in Experiment 1, which included a "not present" response option and both perpetrator-present (PP) and perpetrator-absent (PA) lineups, an increased reluctance to identify a person from both lineup types after verbalization. Experiment 2 incorporated a forced-choice procedure, and the authors found no effect of verbalization on identification performance. Experiment 3 replicated the essential aspects of these results. Consequently, the VOE may reflect a change in recognition criterion rather than a changed processing style or alteration of the underlying memory trace. This conclusion was confirmed by computational modeling of the data.     

An outcome evaluation of the implementation of the Triple P-Positive Parenting Program in Hong Kong

The present study evaluated the effectiveness of the Positive Parenting Program (Triple P) with a sample of Chinese parents of children with early onset conduct-related problems in Hong Kong. The participants consisted of 91 parents whose children attended maternal and child health centers and child assessment centers for service, and were between three to seven years old. Participants were randomly assigned to the intervention (TP) and a waitlist control group (WL). There was no significant difference in pre-intervention measures between the two groups. However, at post intervention, participants in the TP group reported significantly lower levels of child behavior problems, lower dysfunctional parenting styles, and higher parent sense of competence, compared to the WL group. Implications of these findings for the use of Triple P with families of Chinese descent are discussed.     

A randomized trial of individual tutoring for elementary school children with reading and behavior difficulties

Children in Grades K-5, selected for reading and behavior problems, received individual tutoring in a program which aimed to detail a hierarchy of reading skills, locate the point on the hierarchy at which each child should work, and provide enthusiastic social reinforcement for successes. Children were randomly assigned to higher or lower frequency tutoring (one 45-min. session every 1.6 days vs every 8.3 days). The higher frequency group progressed significantly faster in reading than the lower frequency group. Both groups progressed much faster during the time of the intervention than they had before tutoring. Before tutoring, both groups had progressed at about 0.5 grade per year; during tutoring, the higher frequency group progressed at 1.5 grade per year and the lower frequency group at 1.1 grade per year. The subsets of children with verbal ability scores one or two standard deviations below the population mean, as assessed on the Peabody Picture Vocabulary Test, still progressed at average rates of 1.2 grade per year during tutoring. The amount of work students accomplished on a sounding and blending drill predicted reading progress. The intervention cost an average of 1,156 dollars per student per year.     

Hostile attributional tendencies in maltreated children

The hostile attributional tendencies of maltreated children in elementary school across key relationship figures (i.e., parents, teachers, and peers), the relation between children's hostile attributional tendencies and the frequency and severity of maltreatment, and the role of children's hostile attributions of their parents in mediating the relation between maltreatment and children's hostile attributions of unfamiliar peers were examined. The sample consisted of 44 maltreated and 56 nonmaltreated children (females = 51) of mixed ethnicity. Subjects were administered a 20-item measure of attributional processes. The results indicated that relative to nonmaltreated children, physically abused boys were more likely to attribute hostile intentions to a variety of relationship figures, including their parents, an unfamiliar teacher, their best friend, and unfamiliar peers. A positive relation was also found between the frequency of physical abuse and hostile attributional tendencies among males. Finally, support was found for the role of children's hostile attributions of their mothers in mediating the relation between physical abuse and children's hostile attributions of unfamiliar peers. The results support a link between physical abuse and hostile attributional tendencies in children in early elementary school.     

Temporal integration of speech prosody is shaped by language experience: an fMRI study

Differences in hemispheric functions underlying speech perception may be related to the size of temporal integration windows over which prosodic features (e.g., pitch) span in the speech signal. Chinese tone and intonation, both signaled by variations in pitch contours, span over shorter (local) and longer (global) temporal domains, respectively. This cross-linguistic (Chinese and English) study uses functional magnetic resonance imaging to show that pitch contours associated with tones are processed in the left hemisphere by Chinese listeners only, whereas pitch contours associated with intonation are processed predominantly in the right hemisphere. These findings argue against the view that all aspects of speech prosody are lateralized to the right hemisphere, and promote the idea that varying-sized temporal integration windows reflect a neurobiological adaptation to meet the 'prosodic needs' of a particular language.     

Different rates of forgetting following study versus test trials

Two experiments investigated recall following two study conditions, (1) repeated test: a study trial followed by multiple recall trials, and (2) repeated study: multiple study trials with no tests. At a retention interval of 5 minutes, repeated study produced a higher level of recall than repeated test. When the retention interval was extended, forgetting was much more rapid in the study condition, with the repeated test manipulation leading to higher recall at an interval of 7 days. We conclude that study and test trials have different effects upon memory, with study trials promoting memory acquisition, and test trials enhancing the retrieval process itself, which protects against subsequent forgetting.