262 research outputs found
Fundamental constants and tests of theory in Rydberg states of hydrogen-like ions
Comparison of precision frequency measurements to quantum electrodynamics
(QED) predictions for Rydberg states of hydrogen-like ions can yield
information on values of fundamental constants and test theory. With the
results of a calculation of a key QED contribution reported here, the
uncertainty in the theory of the energy levels is reduced to a level where such
a comparison can yield an improved value of the Rydberg constant.Comment: 4 pages, RevTe
Sigmund Exner's (1887) einige beobachtungen Ăźber bewegungsnachbilder (some observations on movement aftereffects):an illustrated translation with commentary
In his original contribution, Exnerâs principal concern was a comparison between the properties of different aftereffects, and particularly to determine whether aftereffects of motion were similar to those of color and whether they could be encompassed within a unified physiological framework. Despite the fact that he was unable to answer his main question, there are some excellentâso far unknownâcontributions in Exnerâs paper. For example, he describes observations that can be related to binocular interaction, not only in motion aftereffects but also in rivalry. To the best of our knowledge, Exner provides the first description of binocular rivalry induced by differently moving patterns in each eye, for motion as well as for their aftereffects. Moreover, apart from several known, but beautifully addressed, phenomena he makes a clear distinction between motion in depth based on stimulus properties and motion in depth based on the interpretation of motion. That is, the experience of movement, as distinct from the perception of movement. The experience, unlike the perception, did not result in a motion aftereffect in depth
Conceiving âpersonalityâ: Psychologistâs challenges and basic fundamentals of the Transdisciplinary Philosophy-of-Science Paradigm for Research on Individuals
Scientists exploring individuals, as such scientists are individuals themselves and thus not independent from their objects of research, encounter profound challenges; in particular, high risks for anthropo-, ethno- and ego-centric biases and various fallacies in reasoning. The Transdisciplinary Philosophy-of-Science Paradigm for Research on Individuals (TPS-Paradigm) aims to tackle these challenges by exploring and making explicit the philosophical presuppositions that are being made and the metatheories and methodologies that are used in the field. This article introduces basic fundamentals of the TPS-Paradigm including the epistemological principle of complementarity and metatheoretical concepts for exploring individuals as living organisms. Centrally, the TPS-Paradigm considers three metatheoretical properties (spatial location in relation to individualsâ bodies, temporal extension, and physicality versus ânon-physicalityâ) that can be conceived in different forms for various kinds of phenomena explored in individuals (morphology, physiology, behaviour, the psyche, semiotic representations, artificially modified outer appearances and contexts). These properties, as they determine the phenomenaâs accessibility in everyday life and research, are used to elaborate philosophy-of-science foundations and to derive general methodological implications for the elementary problem of phenomenon-methodology matching and for scientific quantification of the various kinds of phenomena studied. On the basis of these foundations, the article explores the metatheories and methodologies that are used or needed to empirically study each given kind of phenomenon in individuals in general. Building on these general implications, the article derives special implications for exploring individualsâ âpersonalityâ, which the TPS-Paradigm conceives of as individual-specificity in all of the various kinds of phenomena studied in individuals
Affect, Relationality and the 'Problem of Personality'
This peer-reviewed journal article sets out an argument regarding the importance of genealogical work for understanding concepts such as affect and suggestion
Prefrontal Cortex Lesions Impair Object-Spatial Integration
How and where object and spatial information are perceptually integrated in the brain is a central question in visual cognition. Single-unit physiology, scalp EEG, and fMRI research suggests that the prefrontal cortex (PFC) is a critical locus for object-spatial integration. To test the causal participation of the PFC in an object-spatial integration network, we studied ten patients with unilateral PFC damage performing a lateralized object-spatial integration task. Consistent with single-unit and neuroimaging studies, we found that PFC lesions result in a significant behavioral impairment in object-spatial integration. Furthermore, by manipulating inter-hemispheric transfer of object-spatial information, we found that masking of visual transfer impairs performance in the contralesional visual field in the PFC patients. Our results provide the first evidence that the PFC plays a key, causal role in an object-spatial integration network. Patient performance is also discussed within the context of compensation by the non-lesioned PFC
The role of collective narcissism in populist attitudes and the collapse of democracy in Hungary
What are the psychological processes responsible for the recent spread of populist political systems and movements? All political systems essentially reflect the mental representations of their populations, and collective narcissism has recently emerged as a contributing factor in the rise of populism. This article presents two studies examining the role of collective narcissism in predicting populist attitudes and voting intentions in Hungary. Hungary offers a particularly important case study of state-sponsored populism and illiberalism in Europe, as this country has gone furthest in undermining democratic principles and practices within the EU. To establish the pervasive role of collective narcissism we first review the historical evidence, survey research, and narrative analyses of Hungarian political representations. We then present two empirical studies where we predicted and found that collective narcissism was a significant predictor of negative attitudes toward the EU (Study 1), conservatism, and support for the ruling populist party (Studies 1 and 2). Collective narcissism predicted these variables independently from other factors, such as in-group positivity or perceived relative deprivation. However, once conservatism was controlled for the effects of collective narcissism faded out in some cases. The results nevertheless indicate that collective narcissism plays important role in promoting populist politics. The implications of these findings for understanding the psychological appeal of populism and illiberalism are discussed
Networks of Emotion Concepts
The aim of this work was to study the similarity network and hierarchical clustering of Finnish emotion concepts. Native speakers of Finnish evaluated similarity between the 50 most frequently used Finnish words describing emotional experiences. We hypothesized that methods developed within network theory, such as identifying clusters and specific local network structures, can reveal structures that would be difficult to discover using traditional methods such as multidimensional scaling (MDS) and ordinary cluster analysis. The concepts divided into three main clusters, which can be described as negative, positive, and surprise. Negative and positive clusters divided further into meaningful sub-clusters, corresponding to those found in previous studies. Importantly, this method allowed the same concept to be a member in more than one cluster. Our results suggest that studying particular network structures that do not fit into a low-dimensional description can shed additional light on why subjects evaluate certain concepts as similar. To encourage the use of network methods in analyzing similarity data, we provide the analysis software for free use (http://www.becs.tkk.fi/similaritynets/)
Subliminal Semantic Priming in Speech
Numerous studies have reported subliminal repetition and semantic priming in the visual modality. We transferred this paradigm to the auditory modality. Prime awareness was manipulated by a reduction of sound intensity level. Uncategorized prime words (according to a post-test) were followed by semantically related, unrelated, or repeated target words (presented without intensity reduction) and participants performed a lexical decision task (LDT). Participants with slower reaction times in the LDT showed semantic priming (faster reaction times for semantically related compared to unrelated targets) and negative repetition priming (slower reaction times for repeated compared to semantically related targets). This is the first report of semantic priming in the auditory modality without conscious categorization of the prime
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