Developing rich and quickly accessed knowledge of an artificial grammar

In contrast to prior research, our results demonstrate that it is possible to acquire rich, highly accurate, and quickly accessed knowledge of an artificial grammar. Across two experiments, we trained participants by using a string-edit task and highlighting relatively low-level (letters), medium-level (chunks), or high-level (structural; i.e., grammar diagram) information to increase the efficiency of grammar acquisition. In both experiments, participants who had structural information available during training generated more highly accurate strings during a cued generation test than did those in other conditions, with equivalent speed. Experiment 2 revealed that structural information enhanced acquisition only when relevant features were highlighted during the task using animation. We suggest that two critical components for producing enhanced performance from provided model-based knowledge involve (1) using the model to acquire experience-based knowledge, rather than using a representation of the model to generate responses, and (2) receiving that knowledge precisely when it is needed during training.     

Investigations of HPA function and the enduring consequences of stressors in adolescence in animal models

Developmental differences in hypothalamic–pituitary–adrenal (HPA) axis responsiveness to stressors and ongoing development of glucocorticoid-sensitive brain regions in adolescence suggest that similar to the neonatal period of ontogeny, adolescence may also be a sensitive period for programming effects of stressors on the central nervous system. Although research on this period of life is scarce compared to early life and adulthood, the available research indicates that effects of stress exposure during adolescence differ from, and may be longer-lasting than, effects of the same stress exposure in adulthood. Research progress in animal models in this field is reviewed including HPA function and the enduring effects of stress exposures in adolescence on sensitivity to drugs of abuse, learning and memory, and emotional behaviour in adulthood. The effects of adolescent stress depend on a number of factors, including the age, gender, the duration of stress exposure, the type of stressor, and the time between stress exposure and testing.     

Cognitive Bias Modification: The Critical Role of Active Training in Modifying Emotional Responses

Training participants to select threat or nonthreat interpretations of emotionally ambiguous stimuli or passively exposing them to valenced scenarios can modify later interpretation of ambiguity. However, only when encouraged to actively select meanings do congruent changes in emotional response occur during training itself (Mathews & Mackintosh, 2000). The present study assessed the more critical question of whether active training is also necessary for modifying subsequent emotional responses to images of new ambiguous scenarios presented after training. As predicted, active training did lead participants to rate their images of emotionally ambiguous scenarios as being more unpleasant after training as compared to a matched passive condition. This finding supports the view that active generation of meaning during interpretive training is critical for the modification of later emotional responses.     

The Australian Psychology Workforce 1: A national profile of psychologists in practice

Existing workforce data on Australian psychologists are limited and data that exist are problematic. An online survey instrument was developed to profile psychologists including demographics and work characteristics including setting, role, service location and client type. A total of 11,897 completed the survey (response rate 48%) and a subset of these (N = 9,330) who held full registration were included in the current investigation. Participant demographics show a high (75%) proportion of females in the workforce which is particularly evident in the younger age range. Participation in the workforce was high (68%), with main psychology jobs spread relatively equally between the public and private sectors. Over a quarter of participants held a second psychology position, with the majority of second jobs being in private practice. For both first and second jobs the largest proportion spend their time providing counselling and mental health interventions one‐to‐one to adults. One quarter provide services in non‐metropolitan regions, a higher rate than previously reported. Specific population groups such as culturally and linguistically diverse and indigenous clients were prominent in workloads. This study provides a comprehensive profile and provides a rich data source for further exploration of the characteristics of specific groups within the workforce.     

Using public feedback to increase contributions to a multipurpose senior center

Multipurpose senior centers are expanding their services to meet the demands of a growing population. Unfortunately, federal agencies have not matched this expansion with monetary support. Many senior centers hold fund-raisers to supplement their budgets, but the impact of these projects is rarely evaluated. This study assessed the effectiveness of a public posting strategy designed to increase donations to an ongoing fund-raiser for a multipurpose senior center. The fund-raiser, "Coupons for Caring," consisted of senior volunteers clipping grocery coupons from newspapers, sorting them, and attaching them to their respective products in local grocery stores. Grocery store customers were given the option of donating the coupons to the senior center or redeeming them when they purchased the products to which the coupons were attached. In the experimental condition, signs were posted that included visual and written instructions, feedback on the value of coupons donated by customers the previous week, and feedback on the overall amount of money donated to the senior center. The signs were posted near each cashier stand and at the front entrances of the grocery stores in a multiple baseline across grocery stores. The percentage of coupons donated to the senior center increased at each store after the signs were posted.     

Examining Satisfaction of Older Home Owners with Intergenerational Homesharing

We surveyed 252 homeowners in three midwestern cities about their satisfaction with intergenerational homesharing, using a 21-question survey with 5 satisfaction-with-life dimensions. The purpose of this study was to see if homeowners would report changes in these satisfaction dimensions as a result of taking part in homesharing. An additional purpose was to see if there were age differences, gender differences, and length-of-match differences in satisfaction. Across the five satisfaction dimensions of the survey, 94% of the responses indicated that older participants' lives had either stayed the same or improved due to involvement in intergenerational homesharing. Results suggest that younger homeowners (ages 50 to 69) reaped more financial benefits from homesharing, probably because the purpose of their homesharing match was for the collection of rent. Older homeowners (age 70 and older), who are more likely to be looking for companionship and assistance, reported significantly greater satisfaction than younger homeowners in the dimensions of health, well-being and social activities. Males reported being significantly better off than females in the areas of well-being and health. No differences based on length of homesharing match were found. These data are generally consistent with previous survey work conducted on intergenerational homesharing, suggesting that homesharing is a viable housing option for older homeowners. Given that verbal reports may not be consistent with behavior, the collection of direct observation outcome data on homesharing is recommended for future research on homesharing.     

Impaired positive inferential bias in social phobia

People with social phobia report anticipatory and retrospective judgments about social situations that appear consistent with a negative interpretative bias. However, it is not at all clear that biased interpretative inferences are made "on-line;" that is, at the time that ambiguous information is first encountered. In a previous study, volunteers who were anxious about interviews were found to lack the positive on-line inferential bias that was characteristic of nonanxious controls but also failed to show a bias favoring threatening inferences (C. R. Hirsch & A. Mathews, 1997). This finding was confirmed in the present study, in which social phobic patients showed no evidence of making on-line emotional inferences, in contrast with socially nonanxious controls who were again clearly biased in favor of positive inferences. The authors concluded that nonanxious individuals are characterized by a benign on-line inferential bias, but that this is impaired in people with social phobia.     

PROMPTED VOIDING TO REDUCE INCONTINENCE IN COMMUNITY-DWELLING OLDER ADULTS

In-home caregivers were taught to implement a prompted voiding procedure with 2 older adults with cognitive impairments and urinary incontinence. Results suggested that the procedures can be implemented by family caregivers, and the intervention reduced incontinence for both participants.     

General software for an on-line eye-movement recording system

A general on-line eye-movement recording system is described which consists basically of (a) some on-line instrument capable of displaying a visual scene, (b) a device to measure eye position and output position information in the form of electrical signals (c) an analogue-to-digital converter, and (d) a computer. General software for such a system is discussed with emphasis on subroutines which perform calibration and which continuously monitor eye position.