Observers perceive the Duchenne marker as signaling only intensity for sad expressions, not genuine emotion

The Duchenne marker-crow's feet wrinkles at the corner of the eyes-has a reputation for signaling genuine positive emotion in smiles. Here, we test whether this facial action might be better conceptualized as a marker of emotional intensity, rather than genuineness per se, and examine its perceptual outcomes beyond smiling, in sad expressions. For smiles, we found ratings of emotional intensity (how happy a face is) were unable to fully account for the effect of Duchenne status (present vs. absent) on ratings of emotion genuineness. The Duchenne marker made a unique direct contribution to the perceived genuineness of smiles, supporting its reputation for signaling genuine emotion in smiling. In contrast, across 4 experiments, we found Duchenne sad expressions were not rated as any more genuine or sincere than non-Duchenne ones. The Duchenne marker did however make sad expressions look sadder and more negative, just like it made smiles look happier and more positive. Together, these findings argue the Duchenne marker has an important role in sad as well as smiling expressions, but is interpreted differently in sad expressions (contributions to intensity only) compared with smiles (emotion genuineness independently of intensity). (PsycInfo Database Record (c) 2020 APA, all rights reserved)

AI Hyperrealism : Why AI Faces Are Perceived as More Real Than Human Ones

Acknowledgment We thank Sophie J. Nightingale and Hany Farid for providing open access to their stimuli and data. Funding This research is supported by the Australian Government through the Australian Research Council’s Discovery Projects funding scheme (Project No. DP220101026), a TRANSFORM Career Development Fellowship to A. Dawel from the Australian National University College of Health and Medicine, and an Experimental Psychology Society Small Grant to C. A. M. Sutherland. The funders had no role in developing or conducting this research.Peer reviewe

AI Hyperrealism: Why AI Faces Are Perceived as More Real Than Human Ones

Recent evidence shows that AI-generated faces are now indistinguishable from human faces. However, algorithms are trained disproportionately on White faces, and thus White AI faces may appear especially realistic. In Experiment 1 (N = 124 adults), alongside our reanalysis of previously published data, we showed that White AI faces are judged as human more often than actual human faces-a phenomenon we term AI hyperrealism. Paradoxically, people who made the most errors in this task were the most confident (a Dunning-Kruger effect). In Experiment 2 (N = 610 adults), we used face-space theory and participant qualitative reports to identify key facial attributes that distinguish AI from human faces but were misinterpreted by participants, leading to AI hyperrealism. However, the attributes permitted high accuracy using machine learning. These findings illustrate how psychological theory can inform understanding of AI outputs and provide direction for debiasing AI algorithms, thereby promoting the ethical use of AI

As Far as the Eye Can See: Relationship between Psychopathic Traits and Pupil Response to Affective Stimuli

Psychopathic individuals show a range of affective processing deficits, typically associated with the interpersonal/affective component of psychopathy. However, previous research has been inconsistent as to whether psychopathy, within both offender and community populations, is associated with deficient autonomic responses to the simple presentation of affective stimuli. Changes in pupil diameter occur in response to emotionally arousing stimuli and can be used as an objective indicator of physiological reactivity to emotion. This study used pupillometry to explore whether psychopathic traits within a community sample were associated with hypo-responsivity to the affective content of stimuli. Pupil activity was recorded for 102 adult (52 female) community participants in response to affective (both negative and positive affect) and affectively neutral stimuli, that included images of scenes, static facial expressions, dynamic facial expressions and sound-clips. Psychopathic traits were measured using the Triarchic Psychopathy Measure. Pupil diameter was larger in response to negative stimuli, but comparable pupil size was demonstrated across pleasant and neutral stimuli. A linear relationship between subjective arousal and pupil diameter was found in response to sound-clips, but was not evident in response to scenes. Contrary to predictions, psychopathy was unrelated to emotional modulation of pupil diameter across all stimuli. The findings were the same when participant gender was considered. This suggests that psychopathy within a community sample is not associated with autonomic hypo-responsivity to affective stimuli, and this effect is discussed in relation to later defensive/appetitive mobilisation deficits

Fearful Faces do Not Lead to Faster Attentional Deployment in Individuals with Elevated Psychopathic Traits

In the current study, a gaze-cueing experiment (similar to Dawel et al. 2015) was conducted in which the predictivity of a gaze-cue was manipulated (non-predictive vs highly predictive). This was done to assess the degree to which individuals with elevated psychopathic traits can use contextual information (i.e., the predictivity of the cue). Psychopathic traits were measured with the Self-Report Psychopathy Scale-Short Form (SRP-SF) in a mixed sample (undergraduate students and community members). Results showed no group difference in reaction times between high and non-predictive cueing blocks, suggesting that individuals with elevated psychopathic traits can indeed use contextual information when it is relevant. In addition, we observed that fearful facial expressions did not lead to a change in reaction times in individuals with elevated psychopathic traits, whereas individuals with low psychopathic traits showed speeded responses when confronted with a fearful face, compared to a neutral face. This suggests that fearful faces do not lead to faster attentional deployment in individuals with elevated psychopathic traits

ИССЛЕДОВАНИЕ И ОПИСАНИЕ БЫТОВЫХ ГАЗОВЫХ СЧЕТЧИКОВ

В работе описывается исследование бытовых газовых счетчиков, их разновидности по принципу действия, основные преимущества и их метрологические характеристики. А также рассмотрены характеристики природного газа

Niedrig dosierte thorako-abdominelle Bestrahlung (TAI) zur Behandlung der chronischen Graft-versus-Host-Disease (GvHD): ein Fallbericht

Einleitung: Die chron. GvHD ist eine der häufigsten Komplikationen nach allogener Knochenmarktransplantation (KMT) und peripherer Blutstammzelltransplantation (PBSZT). Sie ist der wichtigste Grund für die späte Mortalität nach Transplantation. Haut, Schleimhäute, Leber und Augen sind am häufigsten betroffen. Die Therapie besteht in einer Suppression des Immunsystem mittels hoch dosiertem Kortikosteroid, Cyclosporin, Antikörpertherapie oder/und extrakorporaler Photochemotherapie. Die Ganzkörperbestrahlung (TBI) wird zur Induktion vor allogener Transplantation mit dem Ziel der Ausschaltung des patienteneigenen Immunsystems durchgeführt. Es wurde die These entwickelt, dass eine im Vergleich zur TBI niedrig dosierte weitflächige Ganzkörperbestrahlung (TAI) mit 1-2Gy das transplantierte Immunsystem soweit supprimieren kann, dass die chron. GvHD damit abgemildert wird (Robin et al., 2005). Methode: 12/2006 stellte sich ein 40jähriger Patient mit Zustand nach allogener PBSZT vom HLA-identen Spender 2002 (Konditionierung TBI 8 Gy)/2004 sowie einmalig vom Fremdspender 2005 bei akuter Myelofibrose vor. Nach der dritten Transplantation entwickelte der Patient trotz medikamentöser Intensivierung der immunsuppressiven Therapie eine chron. GvHD (extensive disease) mit Ausbildung eines ulzerierten makulopapulösen Exanthems im Bereich des gesamten Integuments sowie einer Fasciitis mit starken Schmerzen und notwendiger Hospitalisierung. Daraus folgte eine depressiv-aggressive Grundstimmung mit Suizidgedanken. Bestrahlungstechnik: Aufgrund der Schmerzen war nur die Rückenlage möglich. Nach Durchführung einer Planungs-CT von Kehlkopf bis Unterrand Symphyse wurde das Bestrahlungsvolumen (thorako-abdominal ohne Extremitäten und Haupt) im Planungssystem Oncentra MasterPlan (Nucletron) definiert. Zur Anwendung kam eine opponierende Gegenfeldtechnik aus 0 (VD)/180 (DV) Grad mit zwei Isozentren (kranial/kaudal) mit einer Gesamtdosis von 1Gy und Lagerung auf der Beschleunigerliege. Ein divergenzfreier Feldanschluss wurde durch Gantrykippung realisiert. Der FokusHautAbstand betrug 130 cm bei 15MV-Photonen mit einer Dosisleistung von weniger als 50 cGy/min. Ergebnisse: Die Behandlung wurde ohne Übelkeit oder andere Nebenwirkungen toleriert. Es zeigte sich ein langsamer Abfall der Leukozyten, Thrombozyten sowie des Hb um 3 g/dl bis Tag 22 mit Substitutionsnotwendigkeit. An Tag 28 nach TAI waren die Werte für den Hb 9,4 g/dl, Leukozyten 1,92/nl und Thrombozyten 19/nl ohne Blutungszeichen. Es zeigte sich ein sehr gutes Ansprechen auf die Therapie mit Rückbildung aller ulzerierten Befunde, weitestgehender Rückbildung des makulopapulösen Exanthems sowie der Schmerzen mit täglicher Besserung bis Tag 28. Der Patient befindet sich in ambulanter Betreuung. Zusammenfassung: Die TAI zeigt sich bis auf den Blutbildabfall als komplikationsarme und effektive Therapiemaßnahme in der Behandlung einer therapierefraktären chron. GvHD