Constructing a past in infancy: a neuro-developmental account

The ability to recall the past is fundamental yet until relatively recently, infants were assumed to lack the capacity. Contrary to this perspective, non-verbal tests indicate that developments in recall are well underway by late in the first year of life; by the end of the second year, long-term recall is reliable and robust. New research combining electrophysiological and behavioral measures is identifying the loci of age-related changes: they are attributed to more effective and efficient encoding, consolidation and storage processes associated with developments in the temporal-cortical network that subserves recall. The emerging framework, which applies to episodic and autobiographical memory, highlights the essential developmental continuities in memory from infancy onwards and sheds new light on the phenomenon of childhood amnesia.     

Interpreting the good life: growth memories in the lives of mature, happy people

In 2 studies, the authors examined autobiographical memories for the presence of 2 growth orientations that were expected to correspond differentially to maturity and well-being, which are considered to be key facets of "the good life" by L. A. King (2001). Mature participants emphasized integrative memories (conceptual integration and learning), whereas happy participants emphasized intrinsic memories (humanistic concerns). Both kinds of growth memories correlated more strongly with eudaimonic than with hedonic measures of well-being. Growth memories were largely independent of Big Five traits in relation to maturity and well-being. Finally, older participants were more likely than younger participants to have greater maturity (marginally) and well-being, but this was in part explained by older participants' greater tendency to have growth memories. The discussion considers the role of growth memories in the intentional cultivation of the good life.     

Forming a stable memory representation in the first year of life: why imitation is more than child's play

Although 9-month-old infants are capable of retaining temporally ordered information over long delays, this ability is relatively fragile. It may be possible to facilitate long-term retention by allowing infants to imitate event sequences immediately after their presentation. The effects of imitation on immediate and delayed recognition and on long-term recall were investigated using event-related potentials (ERPs) and elicited imitation, respectively. Mnemonic facilitation resulting from the opportunity to imitate was apparent using both assessments. ERP assessments at immediate and delayed recognition tests suggested that infants who were allowed to imitate had stronger memory representations of familiar stimuli relative to infants who only viewed the presentation of the events. In addition, infants who were allowed to imitate evidenced higher levels of ordered recall after 1 month relative to infants who only watched the experimenter's demonstration. Therefore, imitation proved to have beneficial effects on explicit memory in 9(1/2)-month-olds, providing evidence of its effectiveness as a tool to augment mnemonic capabilities in infancy.     

Slow potential topography

Several studies analyzing slow and long-lasting changes in scalp-recorded brain potentials have recently been published (e.g., Vitouch, Bauer, Gittler, M. Leodolter, & U. Leodolter, 1997). Such long-lasting changes turned out to be applicable as a fairly direct measure of cortical activity. Combined with multichannel recording, slow potential recording can serve as a data source for a noninvasive functional topography in cognitive psychophysiology. This paper describes methodological aspects crucial for true DC recording. Special properties of this brain activity signal will be addressed in the light of its complex origin. Since DC-EEG topography appears to be very promising for future research, specific aspects of multichannel DC-EEG handling, data processing, imaging, and analysis are specifically discussed. Finally, the advantages that cognitive psychophysiology may gain from DC-EEG topography are addressed.     

Green career choices: The influence of ecological stance on recruiting

Ecological issues have become a growing concern to businesses. This experimental study examined the effect of a pro-environmental stance on the recruiting efforts of a fictitious firm. Results supported the idea that a proactive company stance on the environment would be positively related to perceived company attractiveness, intentions to pursue employment with that company, and acceptance of a job offer (n=303). Further, personal environmental stance influenced only the intent to pursue employment. This suggests that a positive environmental stance articulated in a recruitment brochure could positively affect potential recruits, even when a recruit does not personally see herself or himself as being particularly pro-environmental.The authors would like to thank Margaret L. Williams for helping with the generation of the recruitment brochures and Chris J. Berger for his support of this research project. In addition, David K. Palmer and Frances L. Dobbs are thanked for help with data collection. Additional thanks are given to Chris J. Berger, Stephen G. Green, David K. Palmer, and Margaret L. Williams for reviewing an earlier draft of this article.This article was presented at the 1993 Industrial Organizational and Organizational Behavior graduate student conference in Chicago, IL, where it won the Wherry award. Therefore, it was presented at the 1995 meeting of the Society of Industrial and Organizational Psychologists in Orlando, FL.The materials for this study were recycled when possible and the ink on the recruitment brochures is environmentally friendly soy ink.     

The anticipatory potential (contingent negative variation) as an indicator of neuronal information processing in relation to changes in slow potentials in the EEG

The aim of this study was to investigate the interaction between spontaneous Slow Potential Shifts (SPSs) and the probability effect on CNV amplitudes. Fifteen right-handed volunteers participated in this experiment. The presentation of the stimuli was triggered by spontaneous SPSs (duration: 2 seconds, mean-amplitude: 10 microV) in the EEG signal at Cz. Thus, two different S1s (S1a: 1500 Hz, S1b: 2000 Hz) were presented in a random order with a fixed probability of occurrence of 0.8 for S1a and 0.2 for S1b. Each S1 was followed by a light stimulus (S2) with a constant ISI of 4 seconds. According to the cue, the subjects had to push the left (S1a) or the right (S1b) response button as fast as possible with their right index finger. The order of the 4 experimental conditions (stimulus presentation triggered by negative or positive shifts and recording of negative or positive shifts without any stimuli) in which each subject participated was balanced across subjects. Several significant effects could be found by means of a two-way ANOVA for repeated measures (condition x recording site): Negative shifts were accompanied by smaller CNVs as well as PINVs (resolution deficits) at all recording sites; the probability effect was found to be significant in the positive shift condition at F3, F4, and Cz, but not in the negative shift condition except at Cz for the E-wave. CNVs triggered by negative shifts only showed a significant correlation (-.55) with reaction time. These results together favor a two-component model suggesting that SPSs, spontaneous and evoked, are largely generated by glia depolarization, which is evoked by but outlasts neuronal activity.     

An application of the foot in the door technique to organ donation

The extent to which the size of an initial request related to organ donation could be reduced when using the foot-in-the-door technique was investigated. After being asked to comply with an initial request to complete a questionnaire related to organ donation having either 5, 10, 15, or 20 items or not being asked to complete the questionnaire, subjects indicated their willingness to become an organ donor. In addition to replicating earlier research, the results indicated that the original 20-item questionnaire could be reduced to five items without losing its effectiveness to increase willingness to become an organ donor when compared to the no-request condition. The implications of the foot-in-the-door technique for medical volunteering in general and suggestions for future research are also discussed.     

Examining the Test Of Memory Malingering Trial 1 and Word Memory Test Immediate Recognition as screening tools for insufficient effort

Assessing effort level during neuropsychological evaluations is critical to support the accuracy of cognitive test scores. Many instruments are designed to measure effort, yet they are not routinely administered in neuropsychological assessments. The Test of Memory Malingering (TOMM) and the Word Memory Test (WMT) are commonly administered symptom validity tests with sound psychometric properties. This study examines the use of the TOMM Trial 1 and the WMT Immediate Recognition (IR) trial scores as brief screening tools for insufficient effort through an archival analysis of a combined sample of mild head-injury litigants ( N = 105) who were assessed in forensic private practices. Results show that both demonstrate impressive diagnostic accuracy and calculations of positive and negative predictive power are presented for a range of base rates. These results support the utility of Trial 1 of the TOMM and the WMT IR trial as screening methods for the assessment of insufficient effort in neuropsychological assessments.     

Regret intensity, diurnal cortisol secretion, and physical health in older individuals: evidence for directional effects and protective factors

Two studies were conducted to examine the associations between life regrets and health-relevant variables among older adults. Study 1 explored whether intense experiences of regret would be associated with a health-relevant biological process (i.e., diurnal cortisol secretion) and acute physical problems (N = 183). In Study 2, a group of 103 older adults was followed over a period of 3 months, and changes in cold symptoms and sleep problems were examined. Study 2 incorporated an experimental manipulation, targeted at engaging participants in adaptive social- cognitive processes through writing. The results of Study 1 showed intense life regrets to be associated with a larger volume and a steeper morning rise of cortisol secretion and with higher levels of acute physical symptoms. Study 2 demonstrated that levels of regret intensity generally declined only in the experimental group, whereas certain aspects of regret intensity remained stable in the control group. In addition, the intervention evidenced a beneficial effect on the association between initial regret intensity and increased sleep problems over time.