Inhibition of return and manual pointing movements

To examine whether the motor inhibition of return (IOR) postulated by Taylor and Klein (1998, 2000) generalizes to manual guided movements or is restricted to saccadic responses, the following three experiments were conducted. The first experiment combined peripheral cues (which generate IOR) with four types of manual responses made to central targets (central arrow indicating the response location). The responses were made on a touch-screen and were the equivalent of either a detection keypress, a choice keypress, a detection-guided pointing movement, or a choice-guided pointing movement. No IOR was found for any of the responses. The second experiment replicated the main result under eye fixation control. In Experiment 3, peripheral cues and peripheral targets were used, and IOR was present in all responses. Overall, these finding suggest that motor-based IOR is restricted to the oculomotor system. Implications for motor-based IOR and attention-based IOR are discussed.     

Demythologizing the emotions: adaptation,cognition, and visceral representations of emotion in the nervous system

This article highlights four issues about the neurobiology of emotions: adaptation vs. dysfunction, peripheral and central representations of emotion, the regulation of the internal milieu, and whether emotions are cognitive. It is argued that the emotions evolved to play diverse adaptive roles and are biologically vital sources of information processing. They were not designed as pieces of pathology, though they certainly can underlie some psychophathologies. Emotions are, in part, appraisal systems that are operative at numerous level of the nervous system from the brainstem to the cortex. Like other information processing systems they are not perfect cognitive systems. Emotional systems often utilize somatic and visceral information for appraisals of events to facilitate decisions of whether to approach or avoid objects. The neural systems of emotions traverse the entire neural axis and are linked to the regulation of the internal milieu. Thus, in addition to the experiential aspects of emotions, emotions embody appraisal systems that are pervasive to all levels of the brain to facilitate function, adaptation, and survival.     

Inhibition of return spreads across 3-D space

Focusing attention to a location in 3–D space operates much the same as in 2–D space. Attending a location in 2–D space is followed by a selective inhibitory aftereffect known as inhibition of return (IOR). Here, we report the results of two 3–D reflexive cuing studies in which depth was defined by binocular disparity. As has been shown before, attentional cuing was specific for x–y–z locations. However, the present results show that IOR is not depth specific. After a specific location in x–y–z is cued, IOR occurs for the depth plane in front of and behind the cued location. The finding that IOR spreads across depth planes may be related to how inhibited locations are encoded in the superior colliculus. We argue that the functional role of a depth–blind IOR is to bias attention against going back to any part of a previously attended object.     

Evidence that projection of a feared trait can serve a defensive function

Two experiments tested the notion that allowing people to project a feared trait onto another individual would facilitate denial of the trait. In Study 1, participants were given feedback that they were high or low in repressed anger and were allowed to rate an ambiguous target on anger or not. Participants who received high (vs. low) anger feedback rated the target especially high on anger. In addition, participants who received high anger feedback and who were allowed to project their anger had the lowest anger accessibility on a word completion exercise. Study 2 replicated these basic findings using a different trait dimension (dishonesty) and a direct measure of denial (self-attributions of dishonesty). Specifically, in Study 2, participants who received high dishonesty feedback and who were allowed to project dishonesty reported having an especially low level of dishonesty. Discussion focused on the relationship between classic projection and other forms of psychological defense.     

Connecting terror management and dissonance theory: Evidence that mortality salience increases the preference for supporting information after decisions

From the perspective of terror management theory, reminders of mortality should intensify the desire to pursue cognitive consistency. The authors investigated this notion with regard to dissonance theory starting from the finding of research on "selective exposure to information" that after having made a decision, people prefer consonant over dissonant information. The authors found that following mortality salience, people indeed showed an increased preference for information that supported their decision compared to information conflicting with it. However, this only occurred with regard to a worldview-relevant decision case. For a fictitious decision scenario, mortality salience did not affect information seeking. Practical and theoretical implications are discussed.     

The utility of psychological testing in assessing emotional damages in personal injury litigation

Psychological testing and assessment instruments frequently play a small but important role when psychologists assist the courts as emotional damage experts in personal injury matters. However, examiners frequently, if sometimes inadvertently, mislead the court with test interpretations that are based on clinical rather than forensic populations and that fail to appreciate the lack of robustness of clinical measures in this forensic context. Whereas published computerized interpretations repeatedly remind experts that personality test results should only be used as a method to generate hypotheses about the examinee that are to be subjected to further investigation and consideration, experts all too often inform the courts of test interpretations as if the test results were measures of clinical constructs rather than plaintiffs' self-reports of symptoms.     

Play it safe or go for the gold? A terror management perspective on self-enhancement and self-protective motives in risky decision making

Terror management theory (TMT) posits that bolstering self-esteem buffers mortality concerns; accordingly, in past research, heightening mortality salience (MS) increases self-enhancement. However, risky self-esteem-relevant decisions often present a choice between enhancing self-esteem by striving for excellence and protecting self-esteem by avoiding potential failure. Which strategy is preferred under MS? Combining TMT with insights from Steele, Spencer, and Lynch's (1993) resource model, the authors hypothesized and found that MS leads high, but not low, self-esteem participants faced with a risky decision to pursue opportunities for excellence despite substantial risk of failure (Studies 1 and 2); in Study 3, using a more impactful decision, this effect was replicated and it was furthermore found that mortality-salient low-self-esteem participants become more risk-averse. Furthermore, in Study 2, a self-affirmation prime, previously shown to reduce MS-induced defenses, eliminated the self-enhancement effect among high-self-esteem participants. Implications for understanding self-esteem, TMT, and risky decision making are briefly discussed.     

A Descriptive Study of Pain and Quality of Life following Guillain-Barré Syndrome: One Year Later

Guillain-Barré syndrome (GBS) is a debilitating immunopathy that afflicts approximately 5,000 patients annually in the United States, a number that represents roughly half of the incidence of spinal cord injuries (J. M., Meythaler, 1997). Of these 5,000 new cases per year, 4–15% will die, 20% will possess deficits in ambulation or require ventilator assistance more than one year later, and more than two-thirds will have persistent fatigue (J. M., Meythaler, 1997; Hughes et al., 2003). These figures suggest that GBS is currently a legitimate cause of long-term disability.Many secondary complications may follow GBS that include dysautonomia, deep vein thrombosis, anemia, immobilization, and pain and sensory involvement (J. M., Meythaler, 1997; J. M. Meythaler, M. J. De Vivo, and W. C. Braswell, 1997). These medical complications have not been studied systematically, and the psychosocial complication of pain following GBS has certainly been overlooked in the literature. The present paper utilized a limited sample of 18 patients (N = 18) with persistent motor deficits at least one year after onset of GBS. We examined their pain and perceived quality of life as part of an ongoing federally funded study which will ultimately attempt to determine if 4-aminopyridine (4-AP) significantly improves motor function in patients with residual weakness from GBS. Findings suggest that while most persons do not rate themselves as depressed one year after GBS onset, 22% of respondents did exceed the cutoff for clinical depression on the CES-D. Age and gender do not appear to be related to any component of pain in GBS; however, self-ratings of physical and mental health do appear to be significantly related to pain experience. The nature of this relationship was not determined, and merits further investigation in future studies.