Attitude Change During College: Normative or Informational Social Influence?

Students from a small, tightly knit military college participated in a longitudinal study which assessed attitudes toward sociopolitical issues as well as military attitudes at entrance and three years later. A college-wide change in a conservative direction was predicted and observed (p < .001). While a normative influence explanation argues that peer group pressure is responsible for such attitude change, an explanation based on informational influence would argue that the knowledge communicated by faculty also plays a role. The results confirmed the existence of peer group influence on measures of military attitudes but not on measures of sociopolitical attitudes. Rather, and consistent with a process of informational influence, the academic major pursued by the students emerged as a significant predictor of change in sociopolitical attitudes, regardless of reference group identification.     

A high-risk method for studying psychosocial antecedents of chronic pain: the prospective investigation of herpes zoster.

Although patients with chronic pain are often psychologically distressed, it has been difficult to determine whether this distress is an antecedent of chronic pain or whether it is caused by the experience of living with chronic pain. The aim of this investigation was to develop a method that would allow individuals who are at risk for the development of chronic pain to be studied before their pain has become chronic. Patients with acute herpes zoster were assessed with demographic, medical, pain, and psychosocial measures. Pain was assessed in follow-up interviews at 6 weeks and 3, 5, 8, and 12 months after these initial assessments. There were no significant differences between patients who developed short-term herpes zoster pain and patients who did not develop short-term pain for any of the measures at the initial assessment, except for one measure of pain intensity. Patients who developed chronic herpes zoster pain, however, had significantly greater pain intensity, higher state and trait anxiety, greater depression, lower life satisfaction, and greater disease conviction at the initial assessment than patients who did not develop chronic pain. In discriminant analyses, disease conviction, pain intensity, and state anxiety each made a unique contribution to discriminating patients who did and who did not develop chronic pain. This study demonstrates the feasibility of investigating psychosocial antecedents of the development of chronic pain by prospectively examining the longitudinal course of herpes zoster.     

Word matching and Lexical Decisions: A Visual Half-Field study

In unilateral Visual Half-Field tasks visuospatial and linguistic processing were compared. In a Word Matching task subjects judged the physical identity of simultaneously presented pairs of three-letter words or legal nonwords. No mainfield effects were found, but word pairs were recognized better and faster as "same" than nonword pairs. Latencies and errors in "different" pairs increased monotonically with position of letter change in the left but not in the right visual field (RVF), suggesting a serial, letter-by-letter way of processing for the right hemisphere and a whole word approach for the left. At this perceptual level the ability to store lexical information from the icon is stressed as a hemisphere-specific factor. In a Lexical Decision task the same subjects judged the same items on the word/nonword dimension. A RVF advantage associated with words as compared to nonwords occurred, as expected. Additional analysis suggests that order and difficulty of tasks may influence females' laterality, as compared to that of males.     

Studies in social influence: I. Those absent are in the right: Convergence and polarization of answers in the course of a social interaction

The theories of social influence assert that: a) the existing dependence on the source of influence and hence the presence of the latter, is the cause of the above changes, b) the effective qualities of the stimulus or those which are attributed to it - ambiguity, clarity and certitude, etc., - can be seen in the divergence or convergence of the estimations made on the stimulus have an independent effect from the relations which exist between this source and its target. In this research OUI aim is to question both postulates by using a very well know phenomenon. On the one hand we have shown that the style of behaviour of the source, its consistency, is sufficient to produce the desired influence. On the other hand, we have shown that if this behaviour creates a conflict of response, the subject will adopt the proposed response on the condition that he has done so of his own free will and not because of having given in under pressure. That is why an absent source of influence can be successfull; the subject has the impression of approaching it without giving in to it, while the presence of a source of influence causes the polarization, this being the only means for the subject to preserve his independence. The experimental paradigm used is the same as that of Sherif. Dozens of experiments have shown that the greater the distance between the stooge subjects and the naive subjects, the greater the tendency for response polarization. In the control situation where subjects were confronted with a constant stoodge for the entire duration of the experiment, we obtained the same results. In the experimental situation where the stooge would leave the room with a justified excuse before the end of the experiment, we have found a trend converging towards his judgements. The polarization phenomenon is therefore due to the relation between the source and the target of influence, to the meaning which is assigned to the distances of judgment rather than to the distances themselves. Moreover, the withdrawal of the source in no way diminishes its influence and so, those who are absent are sometimes right.     

Negotiating Identity: Three Events that Weaken the Maternal Identity of Addicted Law-Breaking Women

This qualitative study aimed to comprehend how mothers experienced and built their maternal identity throughout their lives. Thirty-eight semi-structured interviews were conducted with drug-using and law-breaking mothers. Results showed that three events were significant for participants: pregnancies, loss of custody, and incarceration. As each event challenged their maternal identity, they questioned their substance use and their criminal involvement. Our results suggest that these events represent key moments to encourage their growing awareness and to foster changes in their deviant lifestyle. We conclude this article by discussing interventions possible for each of these important moments in these mothers’ lives.     

Flexible cue combination in the guidance of attention in visual search

Hodsoll and Humphreys (2001) have assessed the relative contributions of stimulus-driven and user-driven knowledge on linearly- and nonlinearly separable searches. However, the target feature used to determine linear separability in their task (i.e., target size) was required to locate the target. In the present work, we investigated the contributions of stimulus-driven and user-driven knowledge when a linearly- or a nonlinearly-separable feature is available but not required for target identification. We asked observers to complete a series of standard color × orientation conjunction searches in which target size was either linearly- or nonlinearly separable from the size of the distractors. When guidance by color × orientation and guidance by size information are both available, observers rely on whichever information results in the best search efficiency. This is the case irrespective of whether we provide target foreknowledge by blocking stimulus conditions, suggesting that feature information is used in both a stimulus-driven and a user-driven fashion.