Perception of Native English Reduced Forms in Adverse Environments by Chinese Undergraduate Students

Previous research has shown that learners of English-as-a-second-language (ESL) have difficulties in understanding connected speech spoken by native English speakers. Extending from past research limited to quiet listening condition, this study examined the perception of English connected speech presented under five adverse conditions, namely multi-talker babble noise, speech-shaped noise, factory noise, whispering and sad emotional tones. We tested a total of 64 Chinese ESL undergraduate students, using a battery of listening tasks. Results confirmed that the recognition of English native speech was more challenging for Chinese ESL learners under unfavorable listening conditions, in comparison to a noise-free listening condition. These findings carry significant implications for the importance of training and assessments on connected speech perception across various listening environments.     

Patterns of marijuana use and physical health indicators among Canadian youth

We examine how trajectories of marijuana use in Canadian youth (ages 15 to 28) are related to physical health indicators in adolescence and young adulthood. Youth were initially recruited in 2003 (N = 662; 48% male; ages 12 to 18) and followed for six waves. Five trajectories of marijuana use (Abstainers-29%, Occasional users-27%, Decreasers-14%, Increasers-20% and Chronic users-11%) were identified. Chronic users reported more physical symptoms, poorer physical self-concept, less physical activity, poorer eating practices, less sleep, and higher number of sexual partners during adolescence than other classes. Decreasers also reported poorer physical self-concept and poorer eating practices than abstainers. Other trajectory classes showed few significant health problems. Chronic users also reported more acute health problems (i.e. serious injuries, early sexual debut, higher number of sexual partners, greater likelihood of having a STI) in young adulthood than all other classes contributing to costs of healthcare. Youth who engage in early, frequent and continued use of marijuana from adolescence to young adulthood are at-risk of physical health problems in adolescence and young adulthood.     

The effect of neonatal temperament on caregiver behavior in the newborn nursery

The research was conducted to determine whether temperamental characteristics of neonates influence caregiver behavior as early as the second day of life. Visual attentiveness, activity, and irritability of 28 healthy newborns were rated during six 30-minute sessions. Derived scores represented the infant's behavior during the total observation time and during specified caretaking activities. Several categories of nurturant behaviors and types of comments directed toward each infant by nurse-caregivers were coded during independent sessions. Variations in caregiver behavior were shown by Pearson correlations to be related to independently assessed differences among neonates. Alert babies received the most nurturant and social contact; active infants received the least contact, but the most comments that reflected concern about their health; irritable infants were soothed most. The data clearly suggest that emerging infant temperament plays a role in shaping the caregiving environment by the second day of life.     

Influences on Counselor Race Preferences: Distinguishing Black Racial Attitudes From Black Racial Identity

The authors examined differential contributions of Black racial identity and racial attitudes toward Whites in determining counselor preferences. Results indicated that racial attitudes accounted for a significant portion of the variance in same‐race counselor preference. In addition, Black racial attitudes were distinguished from racial identity as independent contributors to counselor preferences. Los autores examinaron contribuciones diferenciales de indentidad racial y actitudes raciales de individuos Negros hacia Blancos para determinar las preferencias por un consejero u otro. Los resultados indicaron que las actitudes raciales se hallaban detrás de una porción significativa de la varianza en la preferencia por un consejero de la misma raza. Además, las actitudes raciales de individuos Negros se distinguieron de la identidad racial como factores independientes de influencia en las preferencias por ciertos consejeros.     

Dialogic reading and morphology training in Chinese children: effects on language and literacy

This study investigates the effects of parent-child shared book reading and metalinguistic training on the language and literacy skills of 148 kindergartners in Hong Kong. Children were pretested on Chinese character recognition, vocabulary, morphological awareness, and reading interest and then assigned randomly to 1 of 4 conditions: the dialogic reading with morphology training (DR + MT), dialogic reading (DR), typical reading, or control condition. After a 12-week intervention period, the DR intervention yielded greater gains in vocabulary, and the DR + MT intervention yielded greater improvement in character recognition and morphological awareness. Both interventions enhanced children's reading interest. Results confirm that different home literacy approaches influence children's oral and written language skills differently: Shared book reading promotes language development, whereas parents' explicit metalinguistic training within a shared book reading context better prepares children for learning to read.     

Culture and Acculturation Influences on Palestinian Perceptions of Prenatal Genetic Counseling

Patient cultural backgrounds strongly influence decision-making processes and outcomes in genetic counseling. The present study investigated influences of culture and acculturation on prenatal decision making processes of native Palestinians and Palestinian Americans. Seventeen native Palestinians and 14 first-generation, Palestinian Americans were interviewed and asked to imagine themselves as patients in hypothetical premarital and prenatal situations. Five major issues were investigated: 1) Influence of family history of an inherited condition on pre-marital decisions; 2) Perceptions of non-directive genetic counselor statements regarding options; 3) Role of gender in prenatal decisions; 4) Gender differences in emotional expression; and 5) Role of family and society in prenatal decisions. Several similarities and differences in native Palestinian and Palestinian American responses were obtained. Similarities appear to be due to common cultural roots, while differences may be due to acculturation. Practice and research recommendations are provided. An erratum to this article can be found at     

Motivationally neutral stimulation of the nucleus basalis induces specific behavioral memory

The cholinergic system has been implicated in learning and memory. The nucleus basalis (NB) provides acetylcholine (ACh) to the cerebral cortex. Pairing a tone with NB stimulation (NBstm) to alter cortical state induces both associative specific tuning plasticity in the primary auditory cortex (A1) and associative specific auditory behavioral memory. NB-induced memory has major features of natural memory that is induced by pairing a tone with motivational reinforcers, e.g., food or shock, suggesting that the cholinergic system may be a “final common pathway” whose activation promotes memory storage. Alternatively, NB stimulation might itself be motivationally significant, either rewarding or punishing. To investigate these alternatives, adult male rats (n = 7) first formed a specific NB-induced memory (CS = 8.0 kHz, 2.0 s paired with NBstm, ISI = 1.8 s, 200 trials), validated by post-training (24 h) frequency generalization gradients (1–15 kHz) of respiration interruption that were specific to the CS frequency. Thereafter, they received the same level of NBstm that had induced memory, while confined to one quadrant of an arena, and later tested for place-preference, i.e., avoidance or seeking of the quadrant of NBstm. This NBstm group exhibited neither preference for nor against the stimulated quadrant, compared to sham-operated subjects (n = 7). The findings indicate that specific associative memory can be induced by direct activation of the NB without detectable motivational effects of NB stimulation. These results are concordant with a memory-promoting role for the nucleus basalis that places it “downstream” of motivational systems, which activate it to initiate the storage of the current state of its cholinergic targets.     

Nicotinic modulation of tone-evoked responses in auditory cortex reflects the strength of prior auditory learning

Nicotinic acetylcholine receptors (nAChRs) contribute to sensory-cognitive function, as demonstrated by evidence that nAChR activation enhances, and nAChR blockade impairs, neural processing of sensory stimuli and sensory-cognitive behavior. To better understand the relationship between nAChR function and behavior, here we compare the strength of nAChR-mediated physiology in individual animals to their prior auditory behavioral performance. Adult rats were trained on an auditory-cued, active avoidance task over 4 days and classified as “good,” “intermediate” or “poor” performers based on their initial rate of learning and eventual level of performance. Animals were then anesthetized, and tone-evoked local field potentials (LFPs) recorded in layer 4 of auditory cortex (ACx) before and after a test dose of nicotine (0.7 mg/kg, s.c.) or saline. In “good” performers, nicotine enhanced LFP amplitude and decreased response threshold to characteristic frequency (CF) stimuli, yet had opposite effects (decreased amplitude, increased threshold) on responses to spectrally distant stimuli; i.e., cortical receptive fields became more selective for CF stimuli. In contrast, nicotine had little effect on LFP amplitude in “intermediate” or “poor” performing animals. Nicotine did, however, reduce LFP onset latency in all three groups, indicating that all received an effective dose of the drug. Our findings suggest that nicotinic regulation of cortical receptive fields may be a distinguishing feature of the best-performing animals, and may facilitate sensory-related learning by enhancing receptive field selectivity.     

The second person

Unlike third-person sciences, psychoanalysis is the science of the second person. Briefly tracing the history of our focus on a second person, this paper contrasts two different approaches--the dyadic and the dialogic, proposing the latter as the better model for our field and the one that marks our unique contribution to other disciplines.