Variability of normal grapho-elements and the assessment of abnormal grapho-elements in the EEG of clinically healthy test persons

The percentage pattern and topical distribution of alpha, beta, theta and delta waves, the occipital voltage level asymmetry of the alpha waves and the frequency of temporal functional disorders were studied in 100 17-year-olds, 273 male test persons of various age and 6,000 healthy persons. The results indicated that 1/4--1/8 of the test section is precentrally taken up by theta waves in the E.E.G. of healthy 17-year-olds. Random sampling on a larger scale shows that left occipital alpha wave domination is just as frequent as on the right; voltage level symmetry occurs only in 13--23 per cent of all cases. Three per cent of the clinically healthy persons showed local temporal E.E.G. anomalies which were on the left in 96 per cent of the cases. Attention is drawn to possible consequences with regard to nomenclature, evaluation and diagnostic assessment.     

Sneaking a peek: pigeons use peripheral vision (not mirrors) to find hidden food

A small number of species are capable of recognizing themselves in the mirror when tested with the mark-and-mirror test. This ability is often seen as evidence of self-recognition and possibly even self-awareness. Strangely, a number of species, for example monkeys, pigs and dogs, are unable to pass the mark test but can locate rewarding objects by using the reflective properties of a mirror. Thus, these species seem to understand how a visual reflection functions but cannot apply it to their own image. We tested this discrepancy in pigeons—a species that does not spontaneously pass the mark test. Indeed, we discovered that pigeons can successfully find a hidden food reward using only the reflection, suggesting that pigeons can also use and potentially understand the reflective properties of mirrors, even in the absence of self-recognition. However, tested under monocular conditions, the pigeons approached and attempted to walk through the mirror rather than approach the physical food, displaying similar behavior to patients with mirror agnosia. These findings clearly show that pigeons do not use the reflection of mirrors to locate reward, but actually see the food peripherally with their near-panoramic vision. A re-evaluation of our current understanding of mirror-mediated behavior might be necessary—especially taking more fully into account species differences in visual field. This study suggests that use of reflections in a mirrored surface as a tool may be less widespread than currently thought.     

Note on two necessary and sufficient axioms for a well-graded knowledge space

We introduce two pedagogically sound axioms for a knowledge structure modeling a student’s learning: outer fringe coherence and learning smoothness. We show that the knowledge structures satisfying these two axioms are equivalent to well-graded knowledge spaces.     

Octogenarian Reports of Lifetime Spiritual Experiences: Types of Experience and Early Life Predictors

This study assessed lifetime histories of discrete spiritual experiences recalled by 144 octogenarian men studied since adolescence and 80 spouses. Women were more likely to report discrete spiritual experiences, as were those from higher socioeconomic backgrounds and those judged more open to experience as young adults. Factor analysis revealed four types of experiences related to beauty/nature, negative life events, protection by a sacred other, and traditional religious settings. Men from better childhood environments more commonly reported spiritual experiences concerning negative life events. Those with serious childhood illnesses were less likely to report experiences of feeling protected by a sacred other.     

Freedom and poverty in the Kantian state

The coercive authority of the Kantian state is rationally grounded in the ideal of equal external freedom, which is realized when each individual can choose and act without being constrained by another's will. This ideal does not seem like it can justify state‐mandated economic redistribution. For if one is externally free just as long as one can choose and act without being constrained by another, then only direct slavery, serfdom, or other systems of overt control seem to threaten external freedom. Yet Kant endows the freedom‐based state with considerable powers of economic redistribution. I argue that recent commentary has misunderstood both Kant's account of why poverty is a form of freedom‐threatening dependence and the extent of the Kantian state's powers for remedying poverty. Criticizing Arthur Ripstein and the Kantianism of the “Toronto‐School,” I argue that the most salient notion of dependence at issue within the Kantian framework is not the direct control of the choice‐making capacities of another but asymmetrical influence in a power relationship. For Kant, poverty is fundamentally a problem of structural disempowerment.     

Train the child and teach the adult: Developing intervention strategies for increasing seafood consumption

Despite increasing levels of per capita seafood consumption globally, consumption levels across the population vary with many consumers eating less than recommended weekly intakes. This study investigates the influence of childhood patterns of seafood consumption, consumer confidence in selecting and preparing seafood, adult eating habits, and lifestyle on seafood consumption. Partial least squares structural equation modelling analysis was conducted using a sample of 1,318 Australian adults. The results show that consuming seafood regularly in childhood and developing the confidence to select and prepare seafood as an adult contribute to the development of seafood eating habits. Subsequently, a habit of consuming seafood leads to a lifestyle involving regular consumption of seafood. The results indicate the need to develop and implement intervention strategies for encouraging childhood seafood consumption (“train the child”) and increasing adults' confidence in selecting and preparing seafood (“teach the adult”). Intervention strategies proposed include educational programmes targeted at both children and adults, combined with the development of seafood products that appeal to children and suit the changing lifestyle needs of today's 21st century consumers.     

Basic psychological needs and neurophysiological responsiveness to decisional conflict: an event-related potential study of integrative self processes

Fulfillment of the basic psychological needs for competence, relatedness, and autonomy is believed to facilitate people’s integrative tendencies to process psychological conflicts and develop a coherent sense of self. The present study therefore used event-related potentials (ERPs) to examine the relation between need fulfillment and the amplitude of conflict negativity (CN), a neurophysiological measure of conflict during personal decision making. Participants completed a decision-making task in which they made a series of forced choices according to their personal preferences. Three types of decision-making situations were created on the basis of participants’ unique preference ratings, which were obtained prior to ERP recording: low-conflict situations (choosing between an attractive and an unattractive option), high-conflict approach-approach situations (choosing between two similarly attractive options), and high-conflict avoidance-avoidance situations (choosing between two similarly unattractive options). As expected, CN amplitudes were larger in high- relative to low-conflict situations, and source localization analyses suggested that the anterior cingulate cortex was the generating structure of the CN. Most importantly, people reporting higher need fulfillment exhibited larger CN amplitudes in avoidance–avoidance situations relative to low-conflict situations; to a lesser extent, they also exhibited larger CN amplitudes in approach–approach situations relative to low-conflict situations. By contrast, people reporting lower need fulfillment exhibited CN amplitudes that poorly discriminated the three decision situations. These results suggest that need fulfillment may promote self-coherent functioning by increasing people’s receptivity to and processing of events that challenge their abilities to make efficient, self-congruent choices.     

I get so lonely,baby: The effects of loneliness and social isolation on romantic dependency

Individuals lacking fulfilling interpersonal interactions may experience feelings of loneliness. Consequently, these individuals may over-rely on their romantic partners to fulfill the need to belong. This study examined the effects of loneliness and social isolation on dependency on a romantic partner in a sample of college students (N = 104). Participants who were in a romantic relationship completed measures of loneliness, social isolation, and romantic dependency near the beginning of the semester (Time 1) and approximately 6 weeks later toward the end of the semester (Time 2). Toward the beginning of the semester, there were no significant predictors of dependency. Toward the end of the semester, individuals who reported higher social isolation reported higher levels of dependency. Time 1 dependency also predicted Time 2 dependency. Future methodological directions and suggestions regarding the examination of perceptions of loneliness and relationship expectations are discussed.