Age of acquisition, not word frequency affects object recognition: evidence from the effects of visual degradation

Four experiments examined how age of acquisition (AoA) and word frequency (WF) interact with manipulations of image quality in a picture-naming task. Experiments 1 and 2 examined the effect of overlaying the to-be-named picture with irrelevant contours. The magnitude of the AoA effect increased when the contours were added (Experiment 1), but the effect of WF remained constant (Experiment 2). Experiments 3 and 4 examined the effects of reducing the contrast of the contours defining the to-be-named picture. Both the effects of AoA (Experiment 3) and WF (Experiment 4) remained constant in the face of contrast reduction. These results provide an empirical dissociation of the effects of AoA and WF. The results are consistent with the idea that both AoA and the addition of irrelevant contours affect the efficiency of object recognition, but WF affects later processes involved in retrieval of object names. The theoretical implications of these findings in relation to accounts of AoA and frequency and their functional localisation in the lexical system are discussed.     

Prospective Prediction of Alternative High School Graduation Status at Emerging Adulthood1

Most studies that examine the prediction of graduation status among teens have examined those who attend regular high schools. The present study reports the prediction of high school graduation status 5 years later among 646 youth who attended alternative (continuation) high schools at baseline. Those youth at baseline who: (a) reported less intention to use soft drugs (cigarettes, alcohol, or marijuana) during the next year; (b) suffered relatively few drug‐related consequences during the last year; (c) were relatively less likely to have carried a weapon (knife or gun) in the last year; (d) reported feeling relatively hopeful about the future; and (e) were older were more likely to self‐report having graduated continuation high school 5 years later. These results suggest that the consequences of drug use, not drug use per se, other illegal behavior, and a sense of well‐being are important predictors of graduation among groups of high‐risk teens. Problem behavior and resiliency theories are offered as potential explanations of these findings.     

The visual perception of motion by observers with autism spectrum disorders: A review and synthesis

Traditionally, psychological research on autism spectrum disorder (ASD) has focused on social and cognitive abilities. Vision provides an important input channel to both of these processes, and, increasingly, researchers are investigating whether observers with ASD differ from typical observers in their visual percepts. Recently, significant controversies have arisen over whether observers with ASD differ from typical observers in their visual analyses of movement. Initial studies suggested that observers with ASD experience significant deficits in their visual sensitivity to coherent motion in random dot displays but not to point-light displays of human motion. More recent evidence suggests exactly the opposite: that observers with ASD do not differ from typical observers in their visual sensitivity to coherent motion in random dot displays, but do differ from typical observers in their visual sensitivity to human motion. This review examines these apparently conflicting results, notes gaps in previous findings, suggests a potentially unifying hypothesis, and identifies areas ripe for future research.     

The Unity and Diversity of Inattention and Hyperactivity/Impulsivity in ADHD: Evidence for a General Factor with Separable Dimensions

To examine the unity and diversity of inattention and hyperactivity/impulsivity symptom domains of Attention-Deficit/Hyperactivity Disorder (ADHD) in a clinical sample of adolescents with ADHD. Parents and adolescents were administered a semi-structured diagnostic interview, the Schedule for Affective Disorders and Schizophrenia for School-Age Children — Present and Lifetime Version (K-SADS-PL), to assess adolescent ADHD. Data from 201 parent interviews and 189 adolescent interviews were examined. Four potential factor structures for the 18 ADHD symptoms were tested using confirmatory factor analysis: two models with correlated factors and two bifactor models. A bifactor model with two specific factors best accounted for adolescent symptoms, according to both parent and adolescents’ reports. Replication of these findings from behavioral rating scales completed for this sample by parents and teachers indicates that the findings are not method– or informant-specific. The results suggest that there is an important unitary component to ADHD symptoms and separable dimensional traits of Inattention and Hyperactivity/Impulsivity.     

Organization in audition by similarity in rate of change: Evidence from tracking individual frequency glides in mixtures

In audition, sound energy is assigned to separate auditory “streams” following principles of organization that closely parallel the visual gestalt principles that guide the perception of distinct forms or objects. Metzger (1934) provided evidence for organization in vision based on similarity in the velocity of moving forms. If two dots approach one another along one spatial dimension, they may appear to cross and continue beyond their meeting point if their velocities differ; otherwise, they usually appear to change direction abruptly and retrace their movements. If an analogous auditory principle exists, with rate of change in frequency substituted for velocity of movement, two frequency glides that sweep through the same frequency range in opposite directions should be able to perceptually cross if their rates of change differ; otherwise, they should usually appear to change direction and retrace the same frequency region. Four experiments provided data in support of this hypothesis, and the results were consistent across experiments with varying stimuli and methods of presentation. When properties of the stimuli favored organization according to a principle of frequency proximity, the effect of a principle of rate similarity was attenuated but still evident.     

A study of satisfactions and stresses of single women in midlife

Sixty single women 35 to 65 years old, previously married or never married, were interviewed about the satisfactions and stresses of the single status. Respondents were categorized as having high, medium, or low life satisfaction. Life satisfaction was found to be significantly correlated to such factors as good health, not being lonely, living with a female housemate, having many casual friends, and being invested in work. Half the women mentioned having sexual needs, which were or were not fulfilled. The other half stated that they did not have sexual needs. These two groups did not differ in life satisfaction. Regrets about not having had children occurred in one-quarter of the childless women, without necessarily implying low life satisfaction. Only 15% of the entire sample had low life satisfaction, a percentage similar to that found in the general population.The authors wish to express sincere appreciation to George Loewenstein for his aid with the computer analysis of the data.     

Stress and its perception in childhood

This paper examines how children may perceive events as stressful, and identifies some of the elements which may contribute to this perception, The proposition that this perception is dependant on individual phenomenology will be investigated. Various models that attempt to explain this phenomena will be presented and a synthesized paradigm offered.     

Fortysomething: Recognizing faces at one’s 25th reunion

Twenty-four to 26 years after their high school graduation, subjects matched 40 photographs of former classmates taken from the high school yearbook with 40 current photographs of these same former classmates. Compared with age-matched control subjects who had no prior familiarity with the persons depicted in the photographs, the former classmates were superior at matching the old and new photographs. Generally, same-orientation photographs (i.e., old and new photographs taken from the same side) were matched more accurately than different-orientation photographs. Prior familiarity, however, rendered the orientation factor unimportant. These findings are discussed in terms of the processes that underlie facial recognition over very long intervals and in terms of their psycholegal implications.