The psychophysiology of combat-induced post-traumatic stress disorder in Vietnam veterans

The psychophysiological responses of heart rate (HR), systolic and diastolic blood pressure, skin conductance level and forehead electromyogram were compared during: rest, mental arithmetic and combat sounds of gradually increasing intensity for five groups of Ss: Vietnam veterans with post-traumatic stress disorder (PTSD); Vietnam veterans without PTSD but with comparable levels of combat experience; Vietnam veterans with other psychiatric disorders; Vietnam-era veterans; and nonveteran phobics. HR response to low-intensity combat sounds provided good discrimination between veterans with PTSD and the other groups and seems to resemble a conditioned emotional response.     

Time course of visual information utilization during fixations in reading

College students read short texts from a cathode-ray tube as their eye movements were being monitored. During selected fixations, the text was briefly masked and then it reappeared with one word changed. Subjects often were unaware that the word had changed. Sometimes they reported seeing the first presented word, sometimes the second presented word, and sometimes both. When only one word was reported, two factors were found to determine which one it was: the length of time a word was present during the fixation and the predictability of a word in its context. The results suggested that visual information is utilized for reading at a crucial period during the fixation and that this crucial period can occur at different times on different fixations. The pattern of responses suggested that the first letter of a word is not utilized before other letters and that letters are not scanned from left to right during a fixation.     

The role of affinity for prosumption experiences and values

Prosumers are individuals who produce goods they consume themselves. The prosumption literature suggests that prosumption can be enhanced through knowledge sharing, creativity and innovation, and developing expertise. In this article, we investigate the relationships between prosumption experiences, prosumption values, and affinity with a prosumption activity. We use a structural equation model approach to evaluate the relationships between these constructs and assume that affinity can mediate the relationship between prosumption experiences and values. We collect empirical data from prosumers who homebrew their own beer and confirm that prosumption experiences and values are positively related, and that affinity mediates the relationship between experiences and values. Implications deriving from these findings are discussed along with directions for future research.     

Extension and critique: A response to Robert Young

In response to Robert Young's critical comments concerning Hermeneutics and Education I clarify two issues. First, I suggest that a more detailed account of interpretation and learning could be developed in a hermeneutically informed cognitive psychology. This would be an account that escapes the textual model of silent reading construed as private mental experience, and that acknowledges the social and communicative dimensions of understanding. Second, in contrast to Young's view, I contend that phronesis is not reducible to a set of inner thought processes and that it has a role to play even in a critical social theory of education.     

Measurement of sexual arousal in several paraphilias: The effects of stimulus modality,instructional set and stimulus content on the objective

The effects of instructional set (become aroused or suppress arousal), stimulus modality (videotape, audiotape, slides, free fantasy) and stimulus content (paraphilic or non-paraphilic) on sexual arousal, as measured by penile plethysmograph, of six different groups of paraphilics, pedophiles, rapists, exhibitionists, homosexuals, sado-masochists and fetishists, were determined. The results showed significant main effects of instructional set and of stimulus modality (videotape was clearly more arousing) as well as several complex interactions of diagnostic group with the other independent variables.