Detection models: Experimental tests with electrocutaneous stimuli

Contemporary psychophysical procedures were employed to determine the nature of the process for detecting rectangular electrical pulses delivered to the skin. Earlier experiments had shown that the somatosensory system is exceedingly responsive to small changes in the energy of an electrocutaneous stimulus, suggesting that sensory noise may be relatively unimportant in this modality. However, a rating scale study showed that both the high-threshold theory and Luce’s low-threshold theory cannot describe the detection process. The form of the ROC curve is consistent with a signal-detection model that assumes a greater variance for the signal plus noise distribution than for the noise distribution. Additional support for signal detection theory came from an experiment that examined the likelihood of a correct second choke when the first was incorrect in a four-alternative forced-choice paradigm. Therefore, the sensory excitation caused by internal noise can sometimes be greater than the excitation produced by an added stimulus. Electrocutaneous detection differs from auditory or visual in that d’ increases at a greater rate as stimulus intensity changes.     

Absolute sensitivity to white noise under auxiliary visual stimulation1

Absolute sensitivity to white noise was measured with the O in the dark, in constant illumination, and in the dark but with sound-synchronized flashes of light at three different intensities. A confidence rating procedure was used, and the results were analyzed in terms of the theory of signal detectability. There appeared to be no consistent effect of auxiliary visual stimulation on absolute auditory sensitivity for the four Os examined.     

Source variability and recall of auditory material

Recall of auditory narrative material was measured under three conditions of presentation. These were a single source condition with material from one speaker, a four source fired sequence condition with material from four speakers in a fired sequence of 3-sec. lengths, and a four source random condition with material from four speakers in a random sequence of 3-sec. lengths. Recall was better for the single source condition than for the four source conditions. No significant difference was found between the fixed and random sequential presentations. Results are discussed in terms of the attentional behaviors involved in the tasks.     

Ressentiment and power: On Reginster's The Will to Nothingness

A critical discussion of Bernard Reginster's book The Will to Nothingness. The contribution engages with Reginster's interpretation of Nietzschean ressentiment, arguing that it is an essentially interpersonal attitude in two different senses. It is a response to a social situation of structural deprivation, and it involves an element of antagonism toward those who are better off within this social structure. The contribution then discusses Reginster's claim that modern morality restores the sense of power of the masses by adjusting the goals that they aim to pursue. I argue that this interesting interpretation does not do full justice to the themes of hostility or hatred that permeate the Genealogy of Morals, extending from Nietzsche's discussion of the slave revolt to his treatments of the bad conscience and of ascetic ideals.     

Relating social skills and social media use to consumer behavior: An investigation across the autism spectrum

In this study, we focus on the role of social functioning on consumer behavior, exploring social media use as a mediating factor. In order to facilitate our identification of social functioning competence as a factor, we increased the range by including a subgroup of respondents who identified themselves as being on the autism spectrum. Indeed, this group stood out as having difficulties in getting along with persons they interact with at school, at work and at home. We used these measures to define an individual differences index of social functioning that we call Quality of Social Functioning (QoSF). In a preliminary report, we showed that this index was predictive of social media use and its influence, with those scoring higher reacting more favorably and utilizing more of its features. In the main study, we focused on the content of social media posts by providing photos of posts that depicted either group activities or individual activities. Those scoring lower on our index gave lower ratings of posts in general, but especially for those posts depicting group activities. Results are discussed in terms of the important role of social functioning in the use of social media and its content as a vehicle for informing consumer behavior. We describe how the results of our study and related studies can be used by marketers to improve the lives of especially vulnerable consumers.     

MMPI Profiles of Liver and Heart Transplant Candidates With and Without Significant Histories of Heavy Alcohol Use

This study compared the Minnesota Multiphasic Personality Inventory (MMPI) profiles of liver and heart transplant candidates with (n = 104) and without (n = 253) significant histories of heavy alcohol consumption. The alcohol and nonalcohol groups had similar overall mean profiles with significant or marginally significant (i.e., T 69) clinical elevations on Scales 1, 2, and 3. However, significantly higher proportions of those in the liver transplant group than in the heart transplant group scored within the clinical range on Scales F, 4, 6, and 8. In addition, the proportions of respondents obtaining clinically elevated scores were significantly higher for the alcohol than for the nonalcohol group on Scale 4 and the MacAndrew Scale; the proportion was higher for the nonalcohol than for the alcohol group on Scale K. The overall similarity of the mean profiles indicates that candidates for liver or heart transplantation with and without histories of heavy alcohol use generally display similar psychological presentations. The observed differences between the liver and the heart transplant groups may reflect impairments in mental status among liver transplant candidates due to metabolic consequences of liver disease. The differences between the alcohol and the nonalcohol groups may be more a reflection of past behavioral patterns than present psychological status.     

A Protocol for Reducing Juvenile Recidivism Through Relapse Prevention

The connection between alcohol and other drug use and juvenile criminal activities is well established. The source of this connection and specific interventions with juvenile offenders involved in alcohol and drug use are unclear. This article reviews existing literature pertinent to this subject and presents an adolescent-specific relapse prevention protocol. This protocol provides readers with a structure for assisting substance abusing juvenile offenders.