Childhood Cruelty to Animals: Psychiatric and Demographic Correlates

This retrospective study compared frequencies of aggressive behaviors and abuse histories noted during a psychiatric intake assessment for children where animal cruelty was endorsed and a control sample of youth for whom animal cruelty was not endorsed to determine if rates of concerning behaviors differed significantly. Relative to the control group, the cruelty group was significantly more likely to have had problems with peers, perpetrated bullying, experienced sexual abuse, and have a history of sexually acting out. Recommendations for childhood animal cruelty screening in mental health settings are discussed.     

Effects of delay of prospective memory cues in an ongoing task on prospective memory task performance

To address the mixed results reported in previous studies, the present experiments examined forgetting in prospective memory (PM) by manipulating the delay between the PM instructions and cue presentation in event-based PM tasks. PM performance was measured for delays of 2–20 min in Experiment 1 and for delays of approximately 1–10 min in Experiment 2. Experiment 2 included both focal and nonfocal PM tasks, and speed on the ongoing task was measured to examine evidence for monitoring processes across the delays tested. The results suggest that nonfocal PM performance follows a nonlinear forgetting function (i.e., rapid decline for shorter delays and slower decline for longer delays) when tested over delays from 1 to 20 min. No effect of delay was seen for the focal task tested in Experiment 2 from 1 to 10 min. In Experiment 2, ongoing-task costs were also found for the first delay but not for longer delays, suggesting that monitoring was significantly reduced between 1 and 2.5 min of the ongoing-task trials.     

Asymmetry in human cognition: further replication and extension

Vladimir Lefebvre proposed an algebraic model of self-reflexion in the 1980s. He viewed reflexion as a product of the structure and computational rules of Gamma algebra and his equations are considered metaphors for how consciousness is structured. From the framework of this model, Lefebvre hypothesized an asymmetry in human cognition. One of the early studies supporting his model was conducted by Victorina Lefebvre. Over the years, other studies have been conducted, but not all have shown similar support as the original findings of Victorina Lefebvre. This study attempted to extend her findings in testing whether or not other ambiguous stimuli could be used in support of the model.     

Transfer of recalibration from audition to touch: modality independence as a special case of anatomical independence

An important step in developing a theory of calibration is establishing what it is that participants become calibrated to as a result of feedback. Three experiments used a transfer of calibration paradigm to investigate this issue. In particular, these experiments investigated whether recalibration of perception of length transferred from audition to dynamic (i.e., kinesthetic) touch when objects were grasped at one end (Experiment 1), when objects were grasped at one end and when they were grasped at a different location (i.e., the middle) (Experiment 2), and when false (i.e., inflated) feedback was provided about object length (Experiment 3). In all three experiments, there was a transfer of recalibration of perception of length from audition to dynamic touch when feedback was provided on perception by audition. Such results suggest that calibration is not specific to a particular perceptual modality and are also consistent with previous research that perception of object length by audition and dynamic touch are each constrained by the object's mechanical properties.     

Who’s funny: Gender stereotypes,humor production,and memory bias

It has often been asserted, by both men and women, that men are funnier. We explored two possible explanations for such a view, first testing whether men, when instructed to be as funny as possible, write funnier cartoon captions than do women, and second examining whether there is a tendency to falsely remember funny things as having been produced by men. A total of 32 participants, half from each gender, wrote captions for 20 cartoons. Raters then indicated the humor success of these captions. Raters of both genders found the captions written by males funnier, though this preference was significantly stronger among the male raters. In the second experiment, male and female participants were presented with the funniest and least funny captions from the first experiment, along with the caption author’s gender. On a memory test, both females and males disproportionately misattributed the humorous captions to males and the nonhumorous captions to females. Men might think men are funnier because they actually find them so, but though women rated the captions written by males slightly higher, our data suggest that they may regard men as funnier more because they falsely attribute funny things to them.     

A test-signal generator for low-frequency instrumentation

An instrument for generating simultaneous sinusoidal test signals m the range of 1–32 Hz for EEG equipment checkout procedures is described. A composite signal is produced by a method that separates the functions of waveform generation and control of output frequencies at which that waveform appears. The general technique may be applicable in a number of situations involving low-frequency instrumentation, as with other types of physiological monitoring. Possibilities and methods for elaboration or modification of the circuit are suggested.     

Modulator and filter circuits for EEG biofeedback

Inexpensive designs for two components of an EEG biofeedback system are described. A two-channel modulator accepts a pair of input signals for modulation of two audio carrier frequencies a musical fifth apart. Carrier suppression is obtained with a simple balanced modulator circuit for each channel. The filter circuit is an integrated circuit adaptation of a successful vacuum tube design reported by other investigators a number of years ago. Various configurations of this equipment for two-channel EEG biofeedback are described.     

TWO MEASURES OF PREFERENCE DURING FORCED-CHOICE ASSESSMENTS

A forced-choice preference assessment was conducted in which two dependent measures were used to select preferred stimuli: (a) approach responding and (b) latency to the first aberrant response. Stimuli identified as preferred based on both dependent measures were then evaluated during treatment. The results suggested that latency may be a useful measure in the selection of preferred stimuli during forced-choice assessments.     

Exposure to Spatial Cues Facilitates Visual Discrimination but Not Spatial Guidance

The performance in a radial-arm maze of two groups of rats with restricted access to extra-maze visual cues was studied. One group received extensive exposure to the visual environment of the maze, whereas the second group was never exposed to the environment, aside from their experience in the maze itself. Spatial exposure resulted in a slightly improved ability to discriminate between previously visited and unvisited spatial locations, which can be explained on the basis of general perceptual learning processes. However, there was no evidence that spatial exposure resulted in control of choices by the spatial relations among the maze locations. These results are discussed in terms of theories of spatial learning which appeal to perceptual learning and cognitive mapping.     

Intergroup Ratio and the Contact Hypothesis1

This study assessed whether contact between members of 2 social groups generalized to contact in another setting, as well as influenced their intercultural knowledge and acceptance. Subjects were 244 international (mainly ethnic Chinese) and Anglo-Australian students living in 3 student residence halls, with each group comprising a numerical majority, equal proportion, and a numerical minority in one of the residential halls. As anticipated, group ratio exerted a systematic effect on the amount of intercultural contact, with most contact by members of a numerical minority, regardless of student group. Importantly, the pattern of residence-hall contact tended to generalize to the wider university environment and to influence intercultural knowledge and acceptance. However, contact was not unqualified in its effects, particularly in relation to members of the cultural majority.