Diagnosing posttraumatic stress disorder with the MMPI clinical scales: A review of the literature

A review of the literature resulted in 21 published studies that reported mean MMPI profile patterns for PTSD patients. Of these, six (29%) reported that the mean 8-2 profile pattern significantly differentiated PTSD patients from non-PTSD patients. The majority of studies found additional PTSD profile patterns reflecting nearly all of the MMPI clinical scales. The data indicate some common group profile patterns for inpatient veterans, prisoner's of war, and inpatient veteran substance abusers. The results also support the hypothesis that there is a continuum from inpatient to outpatient and veteran to civilian populations that corresponds with both symptom and stressor severity. It is concluded that although there is some typicality in similar populations, clinicians should expect heterogeneous MMPI profiles from PTSD patients representing a diversity of clinical symptoms and styles.     

Intuition: A special kind of knowing?

It is argued that while counsellors have adopted the principle tenets of phenomenology—consciousness and meaning—they have built their work on an interpretation of intuition which is contrary to phenomenological rationale and presents it as a form of knowing which is esoteric and mystical. Phenomenologically, intuition differs from no other way in which sense is made of the world. Intuitions should then, in principle, be accessible to conscious understanding so as to allow counsellors to reflect (cognitively?) on their practice. If the process of intuition were really unknowable, then reflective practice in counselling would not be possible.     

Computer-based training versus traditional lecture: Effect on learning and retention

This study investigated the effectiveness of computer-based training (CBT) versus the standard or traditional lecture method. The study was conducted at a large pharmaceutical manufacturing site located in Eastern North Carolina. Subjects were chemical processors in the bulk chemical production division (N=54). All subjects completed a comprehensive hazardous chemicals safety training program, with one treatment group completing the course via a self-directed computer program (n=27) and one completing the course via traditional instructor-led sessions (n=27). Both delivery formats were identical relative to learning objectives and content. Level of learning was assessed via a 33-item pretest and posttest. Subjects were also administered a 33-item retention test one month following completion of the program. Subject biographical data, including educational level, were collected by questionnaire and the Computer Anxiety Index (CAIN) was administered to assess subjects' level of computer anxiety within the CBT group. Satisfaction with training was assessed in both treatment groups. Results indicated 1) both groups demonstrated significant learning following training, 2) there was no significant difference in level of learning between the two groups, 3) retention after one month was significantly higher in the CBT groups, 4) there was no correlation between educational level or computer anxiety and learning, and 5) there was no significant difference between the two groups on satisfaction with the training experience.     

Privacy and the Human Genome Project

The Human Genome Project has raised many issues regarding the contributions of genetics to a variety of diseases and societal conditions. With genetic testing now easily conducted with lowered costs in nonmedical domains, a variety of privacy issues must be considered. Such testing will result in the loss of significant privacy rights for the individual. Society must now consider such issues as the ownership of genetic data, confidentiality rights to such information, limits placed on genetic screening, and legislation to control genetic testing and its applications. There is often a conflict between individual rights to privacy and the need for societal protection.     

Prepulse effects on magnitude estimation of startle-eliciting stimuli and startle responses

The present studies investigated the relationship between prepulse effects on the modification of the brainstem startle reflex and magnitude estimates of startle-eliciting stimuli. In Experiment 1, startle eyeblink responses were elicited in 24 students, half of whom were instructed to estimate the loudness of the startle stimulus (actual intensities of 80, 90, and 100 dB) and half of whom were instructed to estimate the magnitude of their eyeblink. When weak acoustic prepulses preceded the startle-eliciting stimulus, eyeblink amplitude was inhibited, and estimates of response magnitude decreased, but estimates of startle stimulus magnitude decreased only when 100-dB startle stimuli were presented. In Experiment 2, the same startle stimuli were preceded on some trials by a vibrotactile prepulse to the hand. In conditions in which startle amplitude was inhibited, startle stimulus magnitude estimates were not affected. This suggests that the effect of acoustic prepulses on 100-dB startle stimuli in Experiment 1 may have been due to loudness assimilation, an effect independent of the prepulse inhibition of startle responding.     

Evidence that blocking is due to associative deficit: Blocking history affects the degree of subsequent associative competition

Rats were trained on an appetitive discriminated operant procedure according to a blocking design, in which training with a compound stimulus (A + B) was given with or without prior training with A alone. Stimulus B was then presented in compound with a new stimulus (B + C compound). The ability of Stimulus B to block acquisition of control by Stimulus C was decreased by B having itself been blocked by A during the prior training. The results imply that the mechanism of blocking during the initial blocking procedure was a reduced association between Stimulus B and the reinforcer, and not a performance deficit such as that postulated by comparator models of learning.     

Stress,coping resources,and injury risk

Over the last two and a half decades, researchers have tried to determine if psychological variables predispose or buffer athletes from injury. They have found that sport participants who experience many recent stressors, and who do not have the resources and skills to cope with the stress, seem most at risk for injury. This article reviews that research as well as efforts to identify mechanisms that might explain why the stress-injury relationship occurs and interventions that will hopefully reduce the injury risk. Because the multicomponent stress-injury model of Andersen and Williams (1988) helped provide the impetus and theoretical base for much of that research, it serves as the foundation for organizing and summarizing the findings. Although the research has focused largely on sport injuries, the findings have relevance for understanding and potentially preventing many accidents and injuries that occur outside the realm of sport participation.