Object segmentation by top-down processes

In cluttered scenes, some object boundaries may not be marked by image cues. In such cases, the boundaries must be defined top-down as a result of object recognition. Here we ask if observers can retain the boundaries of several recognized objects in order to segment an unfamiliar object. We generated scenes consisting of neatly stacked objects, and the objects themselves consisted of neatly stacked coloured blocks. Because the blocks were stacked the same way within and across objects, there were no visual cues indicating which blocks belonged to which objects. Observers were trained to recognize several objects and we tested whether they could segment a novel object when it was surrounded by these familiar, studied objects. The observer's task was to count the number of blocks comprising the target object. We found that observers were able to accurately count the target blocks when the target was surrounded by up to four familiar objects. These results indicate that observers can use the boundaries of recognized objects in order to accurately segment, top-down, a novel object.     

Test-Retest Reliability of the Spanish Version of the Diagnostic Interview Schedule for Children (DISC-IV)

The test-retest reliability of the Spanish Diagnostic Interview Schedule for Children (DISC-IV) is presented. This version was developed in Puerto Rico in consultation with an international bilingual committee, sponsored by NIMH. The sample (N = 146) consisted of children recruited from outpatient mental health clinics and a drug residential treatment facility. Two different pairs of nonclinicians administered the DISC twice to the parent and child respondents. Results indicated fair to moderate agreement for parent reports on most diagnoses. Relatively similar agreement levels were observed for last month and last year time frames. Surprisingly, the inclusion of impairment as a criterion for diagnosis did not substantially change the pattern of results for specific disorders. Parents were more reliable when reporting on diagnoses of younger (4–10) than older children. Children 11–17 years old were reliable informants on disruptive and substance abuse/dependence disorders, but unreliable for anxiety and depressive disorders. Hence, parents were more reliable when reporting about anxiety and depressive disorders whereas children were more reliable than their parents when reporting about disruptive and substance disorders.     

ADHD Correlates, Comorbidity, and Impairment in Community and Treated Samples of Children and Adolescents

Patterns of correlates, comorbidity and impairment associated with attention-deficit hyperactivity disorder (ADHD) in children and youth were examined in representative samples from the community and from treatment facilities serving medically indigent youth in Puerto Rico. Information from caretakers and youths was obtained using the Diagnostic Interview Schedule for Children, (version IV), measures of global impairment, and a battery of potential correlates. In the community (N = 1,896) and the treated samples (N = 763), 7.5 and 26.2% of the children, respectively, met criteria for DSM-IV ADHD in the previous year. Although the prevalence rates and degree of impairment differed, the general patterns of correlates, comorbidity and impairment were similar in both populations. The exceptions were associated with conduct disorder, anxiety, impairment in the ADHD comorbid group, and age factors that appeared to be related to selection into treatment.     

Does ease to block a ball affect perceived ball speed? Examination of alternative hypotheses

According to an action-specific account of perception, the perceived speed of a ball can be a function of the ease to block the ball. Balls that are easier to stop look like they are moving slower than balls that are more difficult to stop. This was recently demonstrated with a modified version of the classic computer game Pong (Witt & Sugovic, 2010). However, alternative explanations can also explain these results without resorting to nonoptical effects on perception. To examine whether blocking ease influences perception, we conducted several experiments. We examined whether the apparent effects were due to the type of perceptual judgment, the timing of the judgment, and the effectiveness of the paddle. The results are consistent with a perceptual explanation, and help build a case that blocking ease can influence perceived speed. (PsycINFO Database Record (c) 2012 APA, all rights reserved).     

Mothers’ Gender-Role Attitudes and Their Responses to Young Children’s Hypothetical Display of Shy and Aggressive Behaviors

The purpose of this study was to investigate the role of child gender and maternal gender-role attitudes in mothers’ reactions to hypothetical vignettes depicting their preschool-aged child displaying aggressive and shy behaviors. Participants were 78 mothers of preschool-aged children (43 girls, 35 boys; M _age?=?47.44?months, SD?=?11.00) living in a mid-sized city in Ontario, Canada. Mothers provided reports of their gender-role attitudes and rated their expectancies and emotional/behavioral reactions following hypothetical vignettes depicting their child displaying physically aggressive and shy-withdrawn behaviors. It was hypothesized that mothers would respond with more negative (and less positive) emotions and expectancies in response to children’s gender-incongruent problem behaviors (i.e., shyness among boys, aggression among girls). It was further hypothesized that these gender effects would be more pronounced among mothers espousing more traditional (i.e., less egalitarian) gender-role attitudes. Results of multiple regression analyses indicated that mothers anticipated more negative consequences to aggression among boys than among girls. Several significant interaction effects also emerged between child gender and maternal gender-role attitudes, particularly with regards to children’s shyness. Among mothers of boys, a more egalitarian gender-role attitude was associated with greater anticipated benefits of shyness, and both more positive and more negative emotional responses to shyness. For mothers of girls, however, the opposite pattern emerged. Results provide some support for the notion that mothers may enforce gender-typical social behaviors in their children, particularly if they themselves hold more traditional gender-role attitudes.     

The Relationship Between Personality Organization as Assessed by Theory-Driven Profiles of the Dutch Short Form of the MMPI and Self-Reported Features of Personality Organization

Research on and with the Rosenzweig Picture-Frustration (P-F) Study and its precursors, 1934-1974, is presented. Investigations with the original versions of the P-F in English and the parallel, standardized versions in Europe. Asia and the Americas are covered. More than 500 articles and books are organized by topic in a Citation Index giving authors and dates. The available references for a given topic can then be readily located. The major topics include basic (construct) research, reliability, validity and pragmatic applications. These applications pertain to developmental and individual differences, clinical disorders, antisocial behavior, personnel selection, counseling and therapy, educational and school psychology, cultural and differences, and experimental psychodynamics.     

SEX DIFFERENCES AND DEPRESSION IN PUERTO RICO

Sex differences in rates of depressive disorders and depressive symptomatology, as measured by the Diagnostic Interview Schedule, are examined for an island-wide probability sample of Puerto Rico. Consistent with previous research, depression is significantly more prevalent in Puerto Rican women than men. Risk factors associated with depressive symptomatology are examined from a sex-role perspective. The results of multiple regression analyses show that even after demographic, health and marital and employment status variables are controlled, women continue to be at higher risk of depressive symptomatology than men. These results are interpreted within a cultural and sex-role perspective.     

A perceiver’s own abilities influence perception,even when observing others

Perceptual judgments of objects, such as judgments of their size, distance, and speed, are influenced by the perceiver’s ability to act on these objects. For example, objects that are easier to block appear to be moving slower than objects that are more difficult to block. These effects are known as action-specific effects. Recent research has found similar patterns when a person observes someone else act: When the other person’s task is more difficult, objects look farther away and faster to the observer, whereas when the other person’s task is easier, the objects look closer and slower to the observer. These previous findings that another person’s ability penetrates into perceptual judgments challenge the idea that action-specific effects are specific to the perceiver’s own abilities. However, in the present study, we show that the apparent effects of another person’s ability on the observer’s judgments are actually due to the observer’s own abilities as if he or she was in the other person’s situation. This implicates a type of self-projection motor simulation mechanism. The results also preserve the critical idea that action-specific effects are perceiver specific and, consequently, that they could be adaptive for planning future actions.     

Parlance,Places, Process,and Paradox: Revisiting the Discussion of Gender Differences in Childhood Shyness

In our recent review article (Doey et al. 2013), we provided an overview and synthesis of the extant literature pertaining to gender differences in the prevalence and implications of childhood shyness. In response to this review, Sex Roles solicited three commentaries from noted experts in the field. This rebuttal is meant to briefly address some of the central themes raised in these commentaries. Our comments focus on the issues of parlance i.e., nomenclature, operationalization, and assessment, places (i.e., the importance of considering context), process (i.e., mechanisms that may underlie gender differences in shyness), and paradox (comparing gender differences in the prevalence of shyness versus internalizing problems).