Does attention alter appearance?

Abrupt onsets in the visual field can change the appearance of subsequent stimuli, according to one interpretation, by engaging an attentional mechanism that increases effective stimulus contrast. However, abrupt onsets can also engage capacity-unlimited and thus attention-independent sensory mechanisms. We conducted a series of experiments to differentiate the sensory and attentional accounts. Observers compared the contrasts of uncued low-contrast peripheral targets with simultaneous targets cued by one of three cue types with different sensory attributes: white or black peripheral abrupt onsets and central gaze direction cues devoid of sensory activity near the target locations. Each cue facilitated the perception of perithreshold targets; however, the white abrupt onsets increased the perceived contrast of suprathreshold targets, whereas the black abrupt onsets tended to reduce the perceived contrast, and the gaze direction cues had no significant effect. The effectiveness of the gaze direction cues in automatically orienting attention was demonstrated in a control experiment in which they consistently speeded response times. The results suggest that sensory interaction, and not attention, is responsible for changes in appearance.     

Does delay of reinforcement produce durable persistence?

In a foru-phase experiment, phase I was runway training under four different reinforcement conditions: partial reinforcement (PRF), partial delayed reinforcement (PDR), constant delayed reinforcement (CDR), and consistent reinforcement (CRF). During phase 2 extinction, PRF and PDR groups did not differ; both groups were more persistent than group CDR, which was in turn superior to the CRF control. Phase 3 was CRF reacquisition for all groups. During phase 4 extinction, PRF group was more presistent than the other three groups which did not differ. A Pavlovian counter-conditioning hypothesis was proposed to account for the absence of durable persistence following PDR training.     

What Do We Do Unconsciously? And How?

In this reply, we endorse Chartrand's (2005) taxonomy of conscious awareness for different stages of consumer decisions affected by environmental cues. In addition, we attempt to broaden the scope of this taxonomy by discussing its usefulness for consumer decisions in general. We generally support Simonson's (2005) claim that research based on consumers as conscious decision makers is indeed predictive of a wide variety of behavior. However, we also argue that the importance of consciousness should not be overstated. Conscious processes observed in a research laboratory are not representative of conscious processes in real life. The alternative model to describe effects of the environment on behavior by Janiszewski and van Osselaer (2005) may be useful to explain automaticity in goal‐directed behavior, but it poorly describes other automatic behaviors.     

Do self-statements enhance the effectiveness of virtual reality exposure therapy? A comparative evaluation in acrophobia.

There is a clear need for more detailed analysis of the role of cognitive self-statements in virtual reality exposure therapy (VRET). To date, no research on this topic has been done. The primary aim of this study was to investigate whether coping self-statements would enhance the effectiveness of VRET. In a randomized crossover design, 26 patients with acrophobia (DSM-IV diagnosis of specific phobia) were randomly assigned to two sessions of VRET followed by two sessions of VRET plus coping self-statements, or the other way around: first two sessions of VRET plus coping self-statements followed by two sessions of VRET. Results showed that VRET, regardless of addition of coping self-statements, decreased anxiety of heights, decreased avoidance of height situations, and improved attitudes towards heights. However, at 6-month follow-up, most gains during treatment were not fully retained.     

Why Do Emotionally Intelligent People Have Positive Work Attitudes? The mediating role of situational judgment effectiveness

Although research on emotional intelligence (EI) has shown that EI is positively associated with successful work outcomes, little is known about why this is true. The present study hypothesized and tested the intervening process of situational judgment effectiveness (SJE) in the relationships between EI and work attitudes. Using survey responses from 288 employees in South Korea, we found that EI was positively associated with SJE and work attitudes (job satisfaction and organizational commitment), and that the relationships between EI and the work attitudes were partially mediated by SJE. Overall, our finding has incremental contribution to the EI and work attitudes literatures by demonstrating that SJE plays an important role in understanding the EI–work attitudes relationship.     

What is a “schedule of reinforcement”?

Several ambiguities in the present terminology of behavior theory obscure some important theoretical assumptions and experimental details in current research. Left unclarified, such ambiguities impede the accurate analysis of laboratory procedures, and prevent reliable communication among researchers. This paper focuses on the term “schedule of reinforcement.” It points out that two distinguishable operational rules are implicated in the term: in the case where reinforcement is of the so-called response contingent type, the “schedule” is really a rule to identify the response to be reinforced; in the case of non-contingent reinforcement, the “schedule” is truly a rule for delivery of reinforcement. Other terminological ambiguities that are encountered in a discussion of this term include “reinforcement” and “intermittency.” A resolution of these problems will necessarily involve the procedures of non-contingent reinforcement, and the parameter of reinforcement probability.     

Conditioned reinforcement: Neglected or outmoded explanatory construct?

The construct of conditioned reinforcement has been challenged over the past two decades, both as an adequate explanation of behavior in various situations (e.g., behavioral chains) in which it was previously regarded as crucial and in terms of the validity of the concept of conditioned value on which it is based. Recent research is reviewed that answers these criticisms and vindicates the importance of the construct. Also discussed are unanswered empirical issues regarding the concept and its implications for behavioral phenomena of major importance for general-process learning theory, such as autoshaping and imprinting.     

Does the context of reinforcement affect resistance to change?

Eight pigeons were trained on multiple schedules of reinforcement where pairs of components alternated in blocks on different keys to define 2 local contexts. On 1 key, components arranged 160 and 40 reinforcers/hr; on the other, components arranged 40 and 10 reinforcers/hr. Response rates in the 40/hr component were higher in the latter pair. Within pairs, resistance to prefeeding and resistance to extinction were generally greater in the richer component. The two 40/hr components did not differ in resistance to prefeeding, but the 40/hr component that alternated with 10/hr was more resistant to extinction. This discrepancy was interpreted by an algebraic model relating response strength to component reinforcer rate, including generalization decrement. According to this model, strength is independent of context, consistent with research on schedule preference.     

Do animals dream?

The understanding of biological functions of sleep has improved recently, including an understanding of the deep evolutionary roots of sleep among animals. However, dreaming as an element of sleep may be particularly difficult to address in non-human animals because in humans dreaming involves a non-wakeful form of awareness typically identified through verbal report. Here, we argue that parallels that exist between the phenomenology, physiology, and sleep behaviors during human dreaming provide an avenue to investigate dreaming in non-human animals. We review three alternative measurements of human dreaming – neural correlates of dreaming, ‘replay’ of newly-acquired memories, and dream-enacting behaviors – and consider how these may be applied to non-human animal models. We suggest that while animals close in brain structure to humans (such as mammals and birds) may be optimal models for the first two of these measurements, cephalopods, especially octopuses, may be particularly good candidates for the third.     

Does treatment modality affect career counseling effectiveness?

This meta-analysis involved the direct comparison of treatment modalities used in career interventions. In general, interventions that did not involve a counselor were found to be less effective than other modalities. Results also indicated that workshops or structured groups tended to produce better outcomes than non-structured career counseling groups. Furthermore, participants who used a career computer system supplemented by counseling had better outcomes than those who just used a computer system. Many of the comparisons involved comparing counselor-free interventions to other counselor-free interventions; however, this analysis did not find any significant moderators to effect size variation. There was also significant variation in workshops/structured groups and additional research is needed to analyze workshop content and client attributes.     

Do Scholarships Help?

Some 897 successful and unsuccessful applicants for support from the Citizens Scholarship Foundation of America were surveyed. Responses from 515 applicants suggest that these relatively small awards do not change the educational plans of the recipients. Students most frequently report that such awards diminish the financial burden placed on student and family; post-secondary educational choices usually are unchanged by the availability or absence of small scholarships. Even if the scholarships were larger, it appears that the effect would be similar. Fewer than one-third of the students report that a larger scholarship would cause a significant change in post-secondary education.     

What Do You Do with Misleading Evidence?

Gilbert Harman has presented an argument to the effect that if S knows that p then S knows that any evidence for not- p is misleading. Therefore S is warranted in being dogmatic about anything he happens to know. I explain, and reject, Sorensen's attempt to solve the paradox via Jackson's theory of conditionals. S is not in a position to disregard evidence even when he knows it to be misleading.     

Positive and negative reinforcement: Should the distinction be preserved?

Michael (1975) reviewed efforts to classify reinforcing events in terms of whether stimuli are added (positive reinforcement) or removed (negative reinforcement). He concluded that distinctions in these terms are confusing and ambiguous. Of necessity, adding a stimulus requires its previous absence and removing a stimulus its previous presence. Moreover, there is no good basis, either behavioral or physiological, that indicates the involvement of distinctly different processes, and on these grounds he proposed that the distinction be abandoned. Despite the cogency of Michael's analysis, the distinction between positive and negative reinforcement is still being taught. In this paper, we reconsider the issue from the perspective of 30 years. However, we could not find new evidence in contemporary research and theory that allows reliable classification of an event as a positive rather than a negative reinforcer. We conclude by reiterating Michael's admonitions about the conceptual confusion created by such a distinction.