Psychologische Forschung Research Articles

Body schema and body image as internal representations of the body, and their disorders. An historical review.

Since the early 1900s, the terms body schema and body image denoted the internal representations of the body. Bonnier's (1905, Revue Neurologique, 13, 605) schema is a conscious spatial representation of the size, shape, and position of the body, and of body parts, whose dysfunction brings about aschématia, and hypo-, hyper-, and paraschématia. The two schemata of Head and Holmes (1911, Brain, 34, 102) are an unconscious plastic postural schema, for the maintenance of posture and balance and for the coding of the position of body parts, and a conscious superficial schema, for the localisation of somatosensory stimuli. Pick's (1922, Psychologische Forschung, 1, 303) body schema refers to a structural description of the body, including the position of body parts and their spatial relationships, defective in autotopagnosia. Schilder's (1935, The image and appearance of the human body) body image is a comprehensive construct, covering physiological, evolutional, neurological and neuropsychological, psychiatric and sociological aspects. Lhermitte's (1939, L'image de notre corps) image, based on the views of the abovementioned authors, is defective in bodily neuropsychological disorders. The two terms have been used interchangeably, to denote (hemi-)asomatognosia, anosognosia, autotopagnosia, depersonalisation, personal neglect, phantom and supernumerary limbs, somatoparaphrenia. Their properties have been summarized with general dichotomies: schema for action in space ("where" system), image for perception ("what" system), after primary sensory processing. While schema and image fractionated into multiple representations of aspects of the body, the two terms are still used to refer to some of these representations, and to their disorders.

On finding one’s way: a comment on Bock et al. (2024)

In a recent issue of Psychological Research, Bock, O., Huang, J-Y., Onur, O. A., & Memmert, D. (2024). The structure of cognitive strategies for wayfinding decisions. Psychological Research Psychologische Forschung, 88, 476–486. https://doi.org/10.1007/s00426-023-01863-3.) investigated cognitive strategies purported to guide wayfinding decisions at intersections. Following experimentation in a virtualised maze, it was concluded that intersectional wayfinding decisions were based on a ‘generalized cognitive process’, in addition to ‘strategy-specific’ processes. The aim of our comment is not to challenge these findings or their methodological rigour. Rather, we note how the study of human wayfinding has been undertaken from entirely different metatheoretical perspectives in psychological science. Leaning on the seminal work of James Gibson and Harry Heft, we consider wayfinding as a continuous, integrated perception-action process, distributed across the entire organism-environment system. Such a systems-oriented, ecological approach to wayfinding remediates the organismic asymmetry pervasive to extant theories of human behaviours, foregrounding the possibility for empirical investigation that takes seriously the socio-cultural contexts in which inhabitants dwell.

The effects of self-selected background music and task difficulty on task engagement and performance in a visual vigilance task.

Listening to self-selected background music has been shown to be associated with increased task focus and decreased mind wandering during a sustained attention task (Kiss and Linnell, Psychological Research Psychologische Forschung 85:2313-2325, 2021). It is unclear, however, how this relation may depend on the potentially critical factor of task difficulty. To address this knowledge gap, we explored how listening to self-selected music, compared to silence, affects subjectively experienced task engagement (i.e., task focus, mind wandering, and external distraction/bodily sensation states) and task performance during either an easy or a hard vigilance task. We also examined how these effects vary with time-on-task. Our results replicated prior work demonstrating that background music enhanced task focus and decreased mind wandering, compared to silence. There was also lower reaction time variability in the background music condition relative to the silence condition. Notably, these findings held regardless of task difficulty. Interestingly, when examined over time-on-task, the presence of music led to smaller task focus declines and mind wandering increases, compared to silence. Thus, listening to self-selected music appears to confer a protective effect on task engagement, especially over time-on-task.

Capturing writers’ typing while visually attending the emerging text: a methodological approach

AbstractKnowledge about writers’ eye movements and their effects on the writing process, and its product—the finally edited text—is still limited. Previous research has demonstrated that there are differences between reading texts written by someone else and reading one’s own emerging text and that writers frequently look back into their own texts (Torrance et al. in Psychol Res Psychologische Forschung 80(5):729–743, 2016. https://doi.org/10.1007/s00426-015-0683-8). For handwriting, Alamargot et al. (Writing and cognition: research and applications. Elsevier Science, pp 13–29, 2007) found support that these lookbacks could occur in parallel with transcription, but to our knowledge this type of parallel processing has not been explored further, and definitely not in the context of computer writing. Considering that language production models are moving away from previous sequential or serial models (e.g., Levelt in Speaking from intentions to articulation. MIT Press, 1989) towards models in which linguistic processes can operate in parallel (Olive in J Writ Res, 2014. https://doi.org/10.17239/jowr-2014.06.02.4), this is slightly surprising. In the present paper, we introduce a methodological approach to examine writers’ parallel processing in which we take our point of departure in visual attention rather than in the keystrokes. Capitalizing on New ScriptLog’s feature to link gaze with typing across different functional units in the writing task, we introduce and describe a method to capture and examine sequences of typing during fixations, outline how these can be examined in relation to each other, and test our approach by exploring typing during fixations in a text composition task with 14 competent adult writers.

Theoretical psychology: discursive transformations and continuity in Psychological Research/Psychologische Forschung

Psychological Research (formerly Psychologische Forschung) has been published for a century which makes it a valuable subject matter for historical investigations. The journal’s development bears traces of the progress in psychology. This development is of particular interest for the field of theoretical psychology which investigates the epistemological and methodological background. Our hypothesis is that the history of Psychological Research is indicative for the transformations within the discourse of the discipline, i.e., the general context of communication in psychology. We revisit the changes in the editorial practises of the journal through a scientometric mixed-methods approach, combining bibliometric analyses which compare Psychological Research to Psychological Review and the British Journal of Psychology with a single-case investigation. Regarding form, we find continuities and disruptions in the development of the editorial customs from long and single-author to short and multi-author contributions. Investigating content through word frequency analysis shows that the journal’s history reflects the rise of the cognitivist paradigm as well as a transition from theoretical discourse towards experimentation. The analysis of a single case demonstrates the nature of past theoretical discourse in contrast to contemporary practises. Overall, our findings support the assumption of discursive transformations. From the perspective of theoretical psychology, these transformations can be described as a shift towards Methodism which entails a critical negligence of theory.

A neglected pioneer of psychology: Otto Selz's contribution to the psychology of thinking and the dispute with Gestalt psychologists in Psychological Research/Psychologische Forschung.

In the early decades of the twentieth century, Psychologische Forschung was primarily an outlet for researchers from the school of Gestalt psychology. Otto Selz, whose views were closer to those adopted in the cognitive/information-processing revolution in psychology that began in the 1950s, never published in Psychologische Forschung. However, his work was the subject of a negative evaluation in the journal in a book review by Wilhelm Benary, which was followed by critical assessments published elsewhere by Selz and Karl Bühler of a chapter of Kurt Koffka's. A lengthy rebuttal from Koffka then appeared in Psychologische Forschung. In the present paper, we describe Selz's system and Benary's assessment of it. We then explain the relevant aspects of Koffka's book chapter (in: Dessoir M (ed) Die Philosophie in ihren Einzelgebieten. Ullstein, Berlin, 1925) and the strong critiques of it by Bühler and Selz in 1926, followed by details of Koffka's (Psychol Forsch 9:163-183, 1927) response. This part of the history of psychology is of significance to contemporary psychology on several levels. We have embedded this episode against the historical backdrop of Selz's life and tragic end.

From Psychologische Forschung to psychological research: a rough journey through a century

Psychologische Forschung started as a journal “für Psychologie und ihre Grenzgebiete” and became strongly associated with the Berlin school of Gestalt psychology. Parallel to the fate of that school, the Journal was discontinued after 1938 and re-appeared only 1949. A number of years with variable and broad editorial boards and without a clear profile followed. In 1974 the Journal switched to English as the first German psychology journal and became Psychological Research. Gradually and without any abrupt changes—as indicated e.g. by analyses of citing and cited journals—the current profile as “An International Journal of Perception, Attention, Memory, and Action” was developed. During the last one to two decades the number of papers, the number of contributing countries, and the impact increase.

The effect of binaural beat stimulation on sustained attention.

Binaural beats have been used as a way of modifying cognition via auditory stimulation. A recent meta-analysis suggests that binaural beat stimulation can have a positive effect on attention (Garcia-Argibay et al., Psychologische Forschung 83:1124-1136, 2019a, Psychological Research Psychologische Forschung 83:357-372, 2019b), with the sample-weighted average effect size being about .58. This is an intriguing and potentially useful finding, both theoretically and practically. In this study, we focus on sustained attention. We delivered beta-frequency (16 Hz) binaural beat stimulation during a sustained attention task. In "Experiment 1", reaction times were faster under beat stimulation than control stimulation in a between-subjects design. However, the effect was modest in magnitude, and model comparisons using Bayes Factors were indiscriminate between including and excluding the effect from the model. We followed this initial experiment with two concurrently administered follow-up experiments. In "Experiment 2", we added thought probes to measure any changes in task engagement associated with binaural beat stimulation. "Experiment 2" revealed a different effect from "Experiment 1": participants in the binaural beat condition exhibited a shallower vigilance decrement. However, the beat stimulation did not affect the thought probes responses. Combining data across the two experiments indicated rather strong evidence against the hypothesis that beta-frequency binaural beats can augment sustained attention, either via a general speeding of responding or a mitigation of the vigilance decrement. Finally, in "Experiment 3", we investigated whether pupillary measures of arousal and/or task engagement would be affected by binaural beat stimulation. There was no evidence for such effects. Overall, we did not observe any consistent evidence that binaural beat stimulation can augment sustained attention or its subjective and physiological correlates.

Zeigarnik and von Restorff: The memory effects and the stories behind them.

Two of the best known eponymous phenomena in memory research were carried out as dissertations in the same era at the same university, each supervised by an influential researcher working within the Gestalt framework. Both examined the influence of unexpected events on memory. Bluma Zeigarnik (Psychologische Forschung, 9, 1-85, 1927) first reported that memory is better for interrupted tasks than for completed tasks, a phenomenon long known as the Zeigarnik effect. Hedwig von Restorff (Psychologische Forschung, 18, 299-342, 1933) first reported that memory is better for isolated than for non-isolated pieces of information, a phenomenon long known as the von Restorff effect. In this article, I present: (1) a biographical sketch of the researcher behind each phenomenon, (2) a description of their dissertation research, and (3) an evaluation of the current status of each phenomenon.

Does the isolation effect require attention?

An item that differs from the surrounding items is remembered better than an item that is consistent with its surroundings; this is known as the von Restorff effect or isolation effect (von Restorff, Psychologische Forschung, 18, 299-342, 1933). Theoretical explanations have proposed that the isolate is processed differently from control items, though some research has suggested that this processing might require more attention for semantic than for physical isolates. To test this possibility, in the present study we examined the isolation effects for physical isolates and semantic isolates under full and divided attention. Participants viewed lists of categorized words, with some lists containing either a physical or a semantic isolate, followed by immediate written free recall. Across three experiments, divided attention eliminated the semantic isolation effect but did not impact the physical isolation effect. Furthermore, semantic isolates were output earlier in recall than controls, whereas physical isolates were output more similarly to controls. These findings suggest that semantic isolation effects require attention during encoding, whereas physical isolation effects are relatively automatic.

Normalizing the supernormal: the formation of the "Gesellschaft für Psychologische Forschung" ("Society for Psychological Research"), C. 1886-1890.

This paper traces the formation of the German “Gesellschaft für psychologische Forschung” (“Society for Psychological Research”), whose constitutive branches in Munich and Berlin were originally founded as inlets for alternatives to Wundtian experimental psychology from France and England, that is, experimental researches into hypnotism and alleged supernormal phenomena. By utilizing the career trajectories of Max Dessoir and Albert von Schrenck-Notzing as founding members of the “Gesellschaft,” this paper aims to open up novel perspectives regarding extra-scientific factors involved in historically determining the epistemological and methodological boundaries of nascent psychology in Germany.

An Early History of the Gestalt Factors of Organisation

Wertheimer's (1923, Psychologische Forschung 4 301 - 350) idea that the perceptual world is articulated according to factors of organisation is widely acknowledged as one of the most original contributions of Gestalt psychology and stands as a milestone in the history of vision research. An inquiry focused on the forerunners of some of Wertheimer's factors of perceptual organisation is documented here. In fact, in 1900 Schumann described grouping by proximity and by vertical symmetry, and in 1903 G E Müller identified the factors of sameness/similarity and contour. Other authors contributed to the early description of these factors, such as Rubin, who in 1922 originally illustrated grouping by similarity. Even though Wertheimer himself granted these authors due recognition, later psychologists have paid little attention to their contributions. Some possible reasons for this negligence are briefly discussed.

Pattern Recognition and Gestalt Psychology: The Day Nüsslein‐Volhard Shouted “Toll!”

Pattern Recognition and Gestalt Psychology: The Day Nüsslein‐Volhard Shouted “Toll!”

Illusions of Perception of 3-D House Models

In five experiments some edgelines on different polyhedrons (house models in 3-D) were, from a certain vantage point, optically confluent, ie in optical prolongation of each other in 2-D on the retinal image and on photos. Other edgelines on the same polyhedrons were non-confluent, ie optically separate in 2-D. These conditions were found to lead to five different illusory shapes in 3-D. Five spatiofigural illusions were perceived. From these findings an edgeline principle is formulated that: "a straight edgeline in 2-D, whether confluent or separate, is perceived as a unitary and continuously straight edgeline in 3-D". To this is added a supplementary perceptual principle, an amodal completion principle. In the experiments reported here, the illusory perception of shapes in 3-D with confluent edgelines as well as the veridical perception of other shapes in 3-D with only separate or non-confluent edgelines could all be explained by the edgeline principle and the amodal completion principle. By applying the concepts of edgeline confluence and the edgeline principle, a new explanation of the Kopfermann (1930 Psychologische Forschung 13 293- 364) cube phenomena is proposed together with one example of how to test this explanation experimentally.

The Influence of Distractor-Only Prime Trials on the Location Negative Priming Mechanism

The Influence of Distractor-Only Prime Trials on the Location Negative Priming Mechanism

Psychoanalysis and national socialism

Was psychoanalysis in Germany "destroyed" or "saved" in the period 1933-1945? To this day ever new answers are given to the question, answers which depend on the time and the interests involved. This contribution seeks to reconstruct once again the steps leading to the incorporation in 1936 of the German Psychoanalytic Society (Deutsche Psychoanalytische Gesellschaft [DPG]) into the National Socialist German Institute for Psychological Research and Psychotherapy (Deutsches Institut für psychologische Forschung und Psychotherapie). This process of incorporation, which was intended as a "rescue" and led to the self-disbandment of the DPG in 1938, took place during ongoing talks between Felix Boehm and Carl Müller-Braunschweig, officials of the DPG, on the one hand, and Ernest Jones, president of the International Psychoanalytic Association (IPA), on the other. The process was connected to yet another desideratum: the expulsion of Wilhelm Reich from the DPG/IPA.

A multiscale spatial filtering account of the Wertheimer–Benary effect and the corrugated Mondrian

Blakeslee and McCourt [Blakeslee, B., & McCourt, M.E. (1997). Similar mechanisms underlie simultaneous brightness contrast and grating induction. Vision Research, 37, 2849–2869] demonstrated that a multiscale array of two-dimensional difference-of-Gaussian (DOG) filters provided a simple but powerful model for explaining a number of seemingly complex features of grating induction (GI), while simultaneously encompassing salient features of brightness induction in simultaneous brightness contrast (SBC), brightness assimilation and Hermann Grid stimuli. The DOG model (and isotropic contrast models in general) cannot, however, account for another important group of brightness effects including the White effect [White, M. (1997). A new effect of pattern on perceived lightness. Perception, 8, 413–416] and a variant of SBC [Todorovic, D. (1997). Lightness and junctions. Perception, 26, 379–395]. Blakeslee and McCourt [Blakeslee, B., McCourt, M.E. (1999). A multiscale spatial filtering account of the White effect, simultaneous brightness contrast and grating induction. Vision Research, 39, 4361–4377] developed a modified version of the model, an oriented (ODOG) model, which differed from the DOG model in that the filters were anisotropic and their outputs were pooled nonlinearly. Using this model, they were able to account for both groups of induction effects. The present paper examines two additional sets of brightness illusions that cannot be explained by isotropic contrast models. Psychophysical brightness matching is employed to quantitatively measure the size of the brightness effect for two Wertheimer–Benary stimuli [Benary, W. (1924). Beobachtungen zu einem experiment uber helligkeitskontrast. Psychologische Forschung, 5, 131–142; Todorovic, D. (1997). Lightness and junctions. Perception, 26, 379–395] and for low- and high-contrast versions of corrugated Mondrian stimuli [Adelson, E.H. (1993). Perceptual organization and the jugdement of brightness. Science, 262, 2042–2044; Todorovic, D. (1997). Lightness and junctions. Perception, 26, 379–395]. Brightness matches are obtained on both homogeneous and checkerboard matching backgrounds. The ODOG model qualitatively predicts the appearance of the test patches in the Wertheimer–Benary stimuli and corrugated Mondrian stimuli. In addition, it quantitatively predicts the relative magnitudes of the corrugated Mondrian effects in the various conditions. In general, the psychophysical results and ODOG modeling argue strongly that like SBC, GI, the White effect and Todorovic's SBC demonstration, induced brightness in Wertheimer–Benary stimuli and in the corrugated Mondrian primarily reflects early-stage filtering operations in the visual system.

Temporal facilitation for moving stimuli is independent of changes in direction

A flash that is presented aligned with a moving stimulus appears to lag behind the position of the moving stimulus. This flash-lag phenomenon reflects a processing advantage for moving stimuli (Metzger, W. (1932) Psychologische Forschung 16, 176–200; MacKay, D. M. (1958) Nature 181, 507–508; Nijhawan, R. (1994) Nature 370, 256–257; Purushothaman, G., Patel, S.S., Bedell, H.E., & Ogmen, H. (1998) Nature 396, 424; Whitney, D. & Murakami, I. (1998) Nature Neuroscience 1, 656–657) . The present study measures the sensitivity of the illusion to unpredictable changes in the direction of motion. A moving stimulus translated upwards and then made a 90° turn leftward or rightward. The flash-lag illusion was measured and it was found that, although the change in direction was unpredictable, the flash was still perceived to lag behind the moving stimulus at all points along the trajectory, a finding that is at odds with the extrapolation hypothesis (Nijhawan, R. (1994) Nature 370, 256–257). The results suggest that there is a shorter latency of the neural response to motion even during unpredictable changes in direction. The latency facilitation therefore appears to be omnidirectional rather than specific to a predictable path of motion (Grzywacz, N. M. & Amthor, F. R. (1993) Journal of Neurophysiology 69, 2188–2199).

Fifty volumes of Psychological Research/Psychologische Forschung

An account is given of the history and present status of Psychological Research / Psychologische Forschung on the occasion of the 50th volume. Psychologische Forschung, which was founded in 1921 by W. Kohler, K. Koffka, M. Wertheimer, K. Goldstein, and H. W. Gruhle, is today almost exclusively known as the journal of the Berlin school of Gestalt psychology. Though a citation analysis provides strong evidence for the pervasiveness of this image, consideration of the founders' intentions and of the contents of the journal shows that initially it was not meant to serve the interests of a particular “school” of psychology and assumed this role only by a complex combination of historical circumstances. Significant events in the history of the journal include its temporary suspension in 1938, its refoundation in 1949, and its conversion into Psychological Research in 1974. The journal's current place in the publication network of psychology is described by means of a citation analysis. The closest affinities of the journal are with American journals in the “perception and performance” field and other English-language European journals of general experimental psychology.