Reported prevalence of attentional difficulties in a general sample of college students

The present study investigated the self-reported prevalence of attention-deficit hyperactivity disorder (ADHD)symptoms in 770 college students using the Adult Rating Scale and the Wender Utah Rating Scale. Psychometric properties of these scales were explored. The study also investigated the performance of students with ADHD symptoms, relative to students without ADHD symptoms, on a battery of neuropsychological tasks. Results revealed that 7 and 8% of the students reported significant symptoms (i.e., 1.5 SD above the mean) on the Adult Rating Scale and the Wender Utah Rating scale, respectively, and 2.5% reported significant symptoms on both the Adult Rating Scale and the Wender Utah Rating Scale. Using more stringent criteria (two standard deviations), fewer (i.e, 4, 3.8%, and 0.5%) subjects reported significant symptoms associated with ADHD. Between-group differences were found on one of the neuropsychological tasks. The construct validity of the rating scales was supported. Limitations and implications for future research are advanced.Presented at the International Neuropsychological Society's Sixteenth European Conference, Angers, France, June 1994, and the Annual Convention of the American Psychological Association, Los Angeles, CA, August 1994.     

The Nature and Correlates of Psychological Adjustment in Gay Men with AIDS-Related Conditions1

This study assessed differences in the psychological adjustment of gay men who tested positive for the antibody to the human immunodeficiency virus (HIV). Twenty-one were symptomatic for AIDS, and 27 were asymptomatic. A group of 15 gay men who tested negative for the HIV was included as a comparison group. Men in the three groups were equivalent on demographic variables. Symptomatic men reported more health problems than either asymptomatic or seronegative men. Relative to men who were symptomatic, those who were asymptomatic reported more death anxiety, less optimism, and greater severity of psychological distress, and reported more frequent use of avoidance and distancing as coping strategies. The poor psychological functioning of asymptomatic subjects was attributed to the uncertainty regarding their future health status. Generally, positive psychological well-being of symptomatic and asymptomatic men was related to the infrequent use of avoidance coping strategies and high satisfaction with perceived social support.     

A HULLIAN CONSTANT AS AN INDEX OF INTELLIGENCE: TWO EMPIRICAL INVESTIGATIONS

Following Clark Hull, it is widely considered that the asymptote of the learning curve represents motivational factors, but that rate of approach to asymptote ('i') represents associational factors. The suggestion that i may be a measure of intelligence was tested empirically in two studies. An initial exploratory study yielded a positive correlation between i and IQ. A more rigorous replication did not. The results are discussed briefly.     

Children's language acquisition

Child language acquisition has only recently become an important research topic for developmental psychologists, although the universal appearance of language during the second year of life has long fascinated philosophers. For normally developing children, language emerges spontaneously as a means of talking about what they know so that they can accomplish social goals important to them. Some children, however, need to be taught. This article reviews current issues in child language acquisition and suggests a research agenda for helping those children who have difficulty mastering the fundamentals of language.     

Some evidence in support of a relationship between human auditory signal-detection performance and the phase of the alpha cycle

This study concerned the hypothesis presented by Lindsley in 1961 that human sensorimotor performance should vary with the phase of the alpha cycle. Although there have been a number of studies which have supported this hypothesis, there has been no work from a modality other than the visual modality. Since eye tremor is correlated in phase and frequency with the alpha rhythm, these visual results might be explained by the peripheral eye tremor and not necessarily by the central alpha rhythm. The present study measured human auditory signal-detection performance at four different phases of the temporally (T5-linked mastoids) measured alpha rhythm. These four different phases were defined on an a priori basis by a computer algorithm. Detection performance was significantly better at the negative peak of this alpha cycle than at the positive peak, but there was no significant difference between the positively and negatively going zero cross performances. These results are consistent with the Lindsley hypothesis.