Visual search for schematic emotional faces risks perceptual confound

Several studies have used a visual search task to demonstrate that schematic negative-face targets are found faster and/or more efficiently than positive ones, with these findings taken as evidence that negative emotional expression is capable of guiding attentional allocation in visual search. A common hypothesis is that these effects should be disrupted by face inversion; however, this has not been consistently demonstrated, and raises the possibility of a perceptual confound. One candidate confound is the feature of "closure" (see Wolfe & Horowitz, 2004) caused by the down-turned mouth adjacent to edge of the face. This was investigated in the present series of experiments. In Experiment 1, the speed advantage for upright negative faces was replicated. In Experiment 2, the effect was not disrupted with inversion, and an efficiency advantage emerged, suggesting that perceptual features could be causing the advantage. In Experiment 3, speed and efficiency effects were seen when this perceptual characteristic remained but face features were scrambled. Taken together, these findings suggest that visual search using schematic faces containing a curved-line mouth feature cannot provide a valid test of guided search by negative facial emotion unless this confound is controlled.     

Beliefs About God and Mental Health Among American Adults

This study examines the association between beliefs about God and psychiatric symptoms in the context of Evolutionary Threat Assessment System Theory, using data from the 2010 Baylor Religion Survey of US Adults (N = 1,426). Three beliefs about God were tested separately in ordinary least squares regression models to predict five classes of psychiatric symptoms: general anxiety, social anxiety, paranoia, obsession, and compulsion. Belief in a punitive God was positively associated with four psychiatric symptoms, while belief in a benevolent God was negatively associated with four psychiatric symptoms, controlling for demographic characteristics, religiousness, and strength of belief in God. Belief in a deistic God and one’s overall belief in God were not significantly related to any psychiatric symptoms.     

Der Fall Ludwig Tessnow (1872–1939)

The journeyman carpenter Ludwig Tessnow was sentenced to death for four murders by the Greifswald jury court in 1902. The death sentence was upheld during the retrial in 1906 but was later commuted to life imprisonment. According to the unanimous opinion of psychiatric experts Tessnow committed the crimes while in a state of mental incompetence caused by epileptic twilight states. The court, however, ignored this mitigating circumstance in its decision-making process. Seen from a historical perspective, the case is of forensic psychiatric interest because this criminal trial clearly shows the conflicts in competence which arose in the nineteenth century between judges and medical experts when mental competence had to be assessed. It also allows some insight into how mentally ill offenders were dealt with at the beginning of the twentieth century when the influence of public opinion was (and still is) a noteworthy element of prejudgement which was additionally consolidated by the established system of jury courts. The Tessnow case reveals by way of example the usual practice of official consignment of mentally disordered offenders to hospitals at the end of the nineteenth century until the Nazi era. New particulars of the Tessnow findings adequately verified that Tessnow had not been executed in the Greifswald prison as mistakenly believed. It could be proved that Ludwig Tessnow was admitted to the LandesheilanstaltStralsund (state mental hospital in Stralsund) where he became a victim of the Nazi euthanasia program.