Altruism in adolescents and young adults: validation of an instrument to measure generative altruism with structural equation modeling

Aim of this study was to develop and test a research instrument to measure generative and functional altruism in adolescents/young adults. In an anonymous questionnaire survey using standardised questionnaires, 873 students were recruited in academic high schools and professional schools. The 7-item Generative Altruism Scale (GALS), which includes affective and behavioural elements, correlated with relevant external measures that correspond with the underlying construct. Confirmatory factor analysis proved an acceptable model fit with characteristics of χ² [df = 14, N = 846] = 129.946, p < .001, CFI = .91, AIC = 157.946, and SRMR = .048. Female and male students differed significantly with respect to altruism scores (F = 25.5; p < .0001). The GALS could be used for empirical studies analysing the connection between altruism and the development of ethical values and prosocial behaviour. Particularly, compassion as an intrinsic motivator could be fostered in appropriate education programmes.     

Age-related effects in inter-trial inhibition of attention

ABSTRACT

Young and older adults indentified the shape of a color oddball in a visual search task, and both showed faster and more accurate responses when the distractor color was passively viewed in the preceding target-absent trial than when the target color was previewed. This inter-trial effect, known as the distractor previewing effect (DPE), reflects an attentional bias that prevents attention from focusing on recently inspected features that failed to produce a target. The results showed that the DPE pattern was preserved across the lifespan, and that the age-related increase in the magnitude of the DPE appeared rooted in age-related slowing, suggesting substantial sparing of this inhibitory effect in old age.     

Temporal buffering and visual capacity: The time course of object formation underlies capacity limits in visual cognition

Capacity limits are a hallmark of visual cognition. The upper boundary of our ability to individuate and remember objects is well known but—despite its central role in visual information processing—not well understood. Here, we investigated the role of temporal limits in the perceptual processes of forming “object files.” Specifically, we examined the two fundamental mechanisms of object file formation—individuation and identification—by selectively interfering with visual processing by using forward and backward masking with variable stimulus onset asynchronies. While target detection was almost unaffected by these two types of masking, they showed distinct effects on the two different stages of object formation. Forward “integration” masking selectively impaired object individuation, whereas backward “interruption” masking only affected identification and the consolidation of information into visual working memory. We therefore conclude that the inherent temporal dynamics of visual information processing are an essential component in creating the capacity limits in object individuation and visual working memory.     

Cognitive functions of gamma-band activity: memory match and utilization

Oscillatory neural activity in the gamma frequency range (>30Hz) has been shown to accompany a wide variety of cognitive processes. So far, there has been limited success in assigning a unitary basic function to these oscillations, and critics have raised the argument that they could just be an epiphenomenon of neural processing. We propose a new framework that relates gamma oscillations observed in human, as well as in animal, experiments to two underlying processes: the comparison of memory contents with stimulus-related information and the utilization of signals derived from this comparison. This model attempts to explain early gamma-band responses in terms of the match between bottom-up and top-down information. Furthermore, it assumes that late gamma-band activity reflects the readout and utilization of the information resulting from this match.     

Life-Review Technique in the Treatment of PTSD in Elderly Patients: Rationale and Three Single Case Studies

Persons exposed to traumatic events in childhood and adolescence may suffer from the symptoms of posttraumatic stress disorder (PTSD) well into old age. The aim of this paper is to introduce a structured life-review technique for the treatment of elderly PTSD patients. This technique centers on the discussion and evaluation of each consecutive stage of life. The therapist encourages the patient to reminisce on both positive and negative experiences; positive coping experiences are reinforced. A single session on the traumatic event is integrated into the discussion of the stages of life, which are dealt with in chronological order. In the following, 3 case studies (e.g., survivors of the 1945 Dresden bombing) are presented. Psychometric measures (PTSS-10, IES-R) for the case studies are reported. Finally, the potential and limitations of the pilot study and the new approach are discussed.     

Mind, Self, and Personality: Dynamic Interactions from Late Childhood to Early Adulthood

This paper aims to integrate research on mind, personality, and self-development using a general model which hypothesizes that mind and personality are organized in 3 levels. The first level includes environment-oriented, domain-specific systems that specialize in the representation of and interaction with particular types of relationships in the environment in both the cognitive and the social realms. The second level comprises self-oriented monitoring and representation processes that build maps of the environment-oriented systems. Self and identity derive from the interaction between these 2 levels, which is subject to the constraints and the system's processing capacity at the successive ages. These constraints may be taken as the third level of the self. Efficiency in overcoming these constraints is determined by the self-oriented processes, generating feelings and self-representations of self-worth. These feelings are idiosyncratic, and function as a personal constant, which is applied on self-evaluation and self-representations. This constant is rescaled and differentiated with development. Thus, we have simultaneously both modular and transmodular constructs in the mind and the self, which change with relative independence of each other under the constraints of the general processing capabilities and the personal constant. A series of studies are presented to support this model, and its implications for life-span theories of development are discussed.     

The costs and benefits of processing emotional stimuli during rapid serial visual presentation

Using a dual-target identification task during rapid serial visual presentation (RSVP), we examined facilitation and interference effects exerted by emotional stimuli. Emotionally arousing first targets (T1s) were encoded with higher accuracy than neutral T1s. At the same time, identification of a second neutral target (T2) was impaired reflecting a failure of disengaging attention from arousing T1s. Similar interference was triggered by arousing filler stimuli that were not voluntarily searched for in the RSVP stream (Experiment 2). In Experiment 3, we showed that interference is reduced (though facilitation for arousing T1s is maintained) when the second task itself involves variations in emotional arousal. Vice versa, when arousal associated with the T2 stimulus was predictable, interference recurred (Experiment 4). Our findings indicate that the perceived emotional intensity of a stimulus is a determinant of successful identification during RSVP: Encoding of arousing stimuli is reliably facilitated. Interference effects with subsequent processing arise independently and are strongly modulated by the overall task context and specific processing strategies.