Life History Prototypes in the Study of Human Individuality

Using biographical data collected in late adolescence and young adulthood, prototypes or subgroups of individuals with similar patterns of prior behaviors and experiences were empirically identified. The prototypes are described, and the pathways taken by the prototypes from adolescence to adulthood are examined. Focusing on the various pathways or trajectories followed by different prototypes, we discuss implications of prototype membership for continuity and change in personality.     

Saying and doing: A commentary on a contingency-space analysis

This article addresses the contingency-space analysis (Matthews, Shimoff, & Catania, 1987) of the verbal regulation of behavior. From an applied perspective, the conceptualization of the relationship between saying and doing Matthews et al. present may be more complex than is necessary. The central issue in correspondence investigations is a simple one: does correspondence between what people say and what they do occur? The focus of this paper is on the applied and clinical importance of the relationship between verbalizations and relevant behavior and the implications for future research.     

Plasma glucose and insulin levels in monkeys anticipating feeding

To see whether plasma glucose or insulin changed in anticipation of feeding, we provided seven rhesus monkeys with four-hour access to food every other day. Blood was sampled before and during a 30-minute signal which ended with food availability and before and during a 30-minute signal which was not closely and reliably linked with food availability. Plasma insulin showed no evidence of conditioning. Plasma glucose was higher during the signal than prior to the signal in both experiments. This probably reflects the arousing nature of the signal rather than appetitive-associated learning. However, the differences, while statistically significant, were probably biologically trivial because they fall within the normal fluctuations of meal-fed monkeys. Under the conditions of this experiment, it appears that conditional changes in glucose and insulin do not reliably occur in monkeys anticipating access to food.     

Psychometric vs. attentional correlates of early onset alcohol and substance abuse

Adolescent inpatients with a diagnosis of alcohol abuse (n=28), nonalcohol substance abuse disorders (n=15), or psychiatric disorders without substance abuse (n=46) were examined on measures of attentional, intellectual, and personality functioning. High scores on a personality measure, the Substance Abuse Proclivity Scale (SAP), was the best predictor of substance abuse in general. Alcohol abusers were differentiated from other substance abusers by their increased impairment on the Continuous Performance Test. Adolescents with alcohol abuse did not manifest the types of cognitive impairments associated with chronic alcoholism. These data suggest that certain attentional impairments may be associated with early onset alcohol abuse and that earlier conceptions of the role of attentional impairments in risk prediction for alcohol abuse are supported.This research was supported by the Four Winds Foundation.     

A sensation seeking scale for children: Further refinement and psychometric development

A revision of the Sensation Seeking Scale for Children (SSSC) was standardized and validated on a community sample of 660 elementary- and middle-school children and 168 clinic-referred male children. Factor analysis of the combined samples yielded three unique factors, entitled Thrill and Adventure Seeking, Drug and Alcohol Attitudes, and Social Disinhibition. Psychometric indices of reliability and validity were acceptable, but test-retest reliability was only moderate. Differences in SSSC scores according to sex, ethnic group, age, and intellectual status were similar to those found previously with the adult Sensation Seeking Scales. Consistent with documented relations between adult antisocial personality and sensation seeking, the SSSC distinguished boys with conduct disorder (CD) from clinic controls, but the SSSC scores of boys with CD did not differ from those of the community sample boys. Discussion includes suggestions as to the continued study of the assessment of sensation seeking in children.This research was supported by National Institutes of Health Grant 1-R01-MH42529-04 and is based on the doctoral research of the first author.     

The effect of burn injury on adolescents autobiographical memory

Autobiographical memory recall was investigated in two female adolescent groups; one group who had experienced a burn injury and a matched control group. The Burn group was not currently depressed or anxious, but scored significantly higher on the intrusion subscale of the impact of event scale compared to controls. Two autobiographical memory tasks, the autobiographical memory cueing task and the Children's Autobiographical Memory Inventory (CAMI), were used. For the cueing task, the Burn group was significantly slower to recall specific memories. This group also recalled significantly fewer specific memories and significantly more extended overgeneral memories. For the CAMI, the burns group produced significantly lower semantic and episodic recall. The Burn group also produced significant correlations between sub-scales of the impact of event scale and selected measures on the autobiographical memory tasks. Higher intrusion scores were associated with less detailed episodic recall. Higher avoidance scores were associated with longer latencies to recall memories to negative cue words and fewer specific memories to all cue words. These results are discussed from the perspective that the Burn group experienced intrusive thoughts which interfered with normal autobiographical functioning.     

Incremental validity of selected MMPI-A content scales in an inpatient setting

To date, relatively few studies have been published evaluating the validity or incremental validity of the content scales from the adolescent version of the Minnesota Multiphasic Personality Inventory (MMPI-A; J. N. Butcher et al., 1992). A sample of 629 psychiatric inpatient adolescents who had completed the MMPI-A was used to evaluate the ability of selected clinical and content scales to predict conceptually related clinical variables. Criteria were based on clinician ratings, admission and discharge diagnoses, and chart reviews. Results from hierarchical multiple and logistic regression analyses indicated the content scales offered incremental validity over the clinical scales and supported the use of the content scales as an adjunct to the traditional clinical scales.     

Phonological priming effects on speech onset latencies and viewing times in object naming

An earlier experiment (Meyer, Sleiderink, & Levelt, 1998) had shown that speakers naming object pairs usually inspected the objects in the required order of mention (left object first) and that the viewing time for the left object depended on the word frequency of its name. In the present experiment, object pairs were presented simultaneously with auditory distractor words that could be phonologically related or unrelated to the name of the object to be named first. The speech onset latencies and the viewing times for that object were shorter after related distractors than after unrelated distractors. Since this phonological priming effect, like the word frequency effect, most likely arises during wordform retrieval, we conclude that the shift of gaze from the first to the second object is initiated after the word form of the first object’s name has been accessed.     

The Bright Side of Threatened Narcissism: Improved Performance Following Ego Threat

Narcissistic individuals have highly positive self‐views and overestimate their abilities. Consequently, they tend to react aggressively whenever they receive information that does not match their high self‐views (ego threat). We argue that focusing on aggression merely portrays a one‐sided view of narcissistic individuals and the manner in which they counter ego threats. We propose that following ego threat, narcissism can also fuel performance. In four studies, we measured nonclinical narcissism and allocated Dutch undergraduate university students (N₁ = 175, N₂ = 142, N₃ = 159, N₄ = 174) to either an ego threat or a no ego threat condition. Ego threat involved negative feedback (Studies 1–2) or threat to uniqueness (Studies 3–4). We measured participants’ intentions to complete a challenging task (Study 1), their creative performance (Studies 2–3), and their performance on an anagram task (Study 4). Across Studies 1–3, we consistently found that following ego threat, higher nonclinical narcissism was associated with greater willingness to perform tasks that enabled demonstration of abilities and enhanced creative performance. These results were confirmed using a meta‐analysis. However, anagram performance was not enhanced following ego threat. We provide additional analyses that might help explain this. Our findings thus reveal a more positive side to the way narcissistic individuals manage threats to their self‐image.     

Visual Feedback in Written Imaginal Exposure for Posttraumatic Stress: A Preliminary Study

This study investigated the visual feedback hypothesis, which states that visual feedback from written trauma narratives contributes to the efficacy of written imaginal exposure for posttraumatic stress via the reuptake of traumatic content during production of the narrative. We tested a college sample (n = 61) with clinically elevated posttraumatic stress as measured with the Impact of Events Scale. Participants were randomly assigned to a writing with visual feedback condition, a writing without visual feedback condition, or a control condition. The hypothesis was not supported: Writing with and without visual feedback equally reduced intrusion and avoidance symptoms. Exploratory analyses, however, showed increased intrusion symptoms immediately after writing with visual feedback, which was in contrast with decreased symptom levels in the other conditions. These findings are in line with previous findings regarding immediate symptom development following writing interventions for posttraumatic stress and call for further exploration of the visual feedback hypothesis.