Fear and the amygdala: manipulation of awareness generates differential cerebral responses to phobic and fear-relevant (but nonfeared) stimuli

Rapid response to danger holds an evolutionary advantage. In this positron emission tomography study, phobics were exposed to masked visual stimuli with timings that either allowed awareness or not of either phobic, fear-relevant (e.g., spiders to snake phobics), or neutral images. When the timing did not permit awareness, the amygdala responded to both phobic and fear-relevant stimuli. With time for more elaborate processing, phobic stimuli resulted in an addition of an affective processing network to the amygdala activity, whereas no activity was found in response to fear-relevant stimuli. Also, right prefrontal areas appeared deactivated, comparing aware phobic and fear-relevant conditions. Thus, a shift from top-down control to an affectively driven system optimized for speed was observed in phobic relative to fear-relevant aware processing.     

The interpersonal expression of perfection: perfectionistic self-presentation and psychological distress

A concept involving the interpersonal expression of perfection, perfectionistic self-presentation, is introduced. It is argued that perfectionistic self-presentation is a maladaptive self-presentational style composed of three facets: perfectionistic self-promotion (i.e., proclaiming and displaying one's perfection), nondisplay of imperfection (i.e., concealing and avoiding behavioral demonstrations of one's imperfection), and nondisclosure of imperfection (i.e., evading and avoiding verbal admissions of one's imperfection). Several studies involving diverse samples demonstrate that perfectionistic self-presentation is a valid and reliable construct and a consistent factor in personal and interpersonal psychological distress. It is argued that the need to promote one's perfection or the desire to conceal one's imperfection involves self-esteem regulation in the interpersonal context.     

Suicide attempts in israel: age by gender analysis of a national emergency departments database

An analysis of all emergency department admissions in Israel classified as an attempted suicide in the years 1996-2002 was done to examine attempted suicide rates by age and gender with particular attention to adolescents and young adults. Gender differences in attempted suicide rates were significant only during adolescence and young adulthood, ages 13 to 26. The highest rate for females was 3 years earlier than the highest rate for males. The results lead to the conclusion that women do not attempt suicide more than men, except for 13-26 year olds.     

Specific phobia: a disorder of fear conditioning and extinction

Specific phobia is the most prevalent of the anxiety disorders. Although there have been relatively few studies of its psychobiology and pharmacotherapy, there is a rich laboratory of literature on fear conditioning and extinction and a clear evolutionary perspective. Advances in the cognitive-affective neuroscience of fear processing may ultimately lead to new approaches to the clinical management of phobias.     

Ability of substance abusers to escape detection on the Minnesota Multiphasic Personality Inventory-Adolescent (MMPI-A) in a juvenile correctional facility

The ability of respondents to underreport successfully on substance abuse and validity scales of the Minnesota Multiphasic Personality Inventory-Adolescent (MMPI-A; Butcher et al., 1992) was evaluated. Incarcerated teens (67 substance abusing, 59 non-substance abusing) completed the MMPI-A twice: once under standard instructions (SI) and once under instructions to fake good (FG). Under SI, substance scales correctly classified about 60% to 85% of adolescents. Under FG, substance- and non-substance-abusing juveniles produced lower scores on substance scales. However, the Lie Scale (L) was able to detect more than 75% of deceptive profiles and about 77% of honest profiles. When scale L and the best substance scale were used in combination, only about 18% of faking substance abusers were not identified as either substance abusers or as underreporting. For feigning substance abusers, only about 10% of substance abusers were detected, with about 72% being categorized as faking and needing further assessment.     

Author Index

Authors Index

Author Index