Domus Ecclesiae: Rethinking a Category of Ante-Pacem Christian Space

Historians of religion, art, and archaeology often invoke theterm domus ecclesiae (oo ) as a technical category to denotea house or building that had been materially adapted for Christianritual during the ante-pacem period. Most employ the term inthe belief that it is genuinely pre-Constantinian, and thatChristians in this period described their cult spaces as renovatedhouses. This essay demonstrates the inaccuracy of both assumptions,and shows that the first attested literary use of the term datesno earlier than 313 CE, when Eusebius of Caesarea (d. 339) usedit in his writings to designate a church building without anyindication of its architectural form or history. Following adiscussion of the term's modern history and an analysis of theancient literary evidence, the essay concludes with a brieflook at the material evidence for domus ecclesiae, which, withone exception (the complex at Dura-Europos), also dates to thepost-Constantinian period.     

A neuropsychological assessment of dual-task costs in closed-head injury patients using Cohen’s effect size estimation method

A test of whether patients suffering from a severe closed-head injury (CHI) were affected by disproportionate dual-task costs compared to those of healthy control participants was carried out through a direct comparison of CHI effects on dual-task (psychological refractory period, or PRP) performance and on single-task performance. In the dual-task condition of the present experiment, independent choice-responses were required to two sequential stimuli presented at a variable stimulus onset asynchrony (SOA). A significant delay of the reaction time (RT) to the second stimulus was reported by both CHI patients and controls at short (SOA) compared to long SOA, i.e., a PRP effect. The PRP effect was more pronounced for CHI patients than controls. In the single-task condition, a single choice-response was required to a stimulus presented in isolation. The RT produced by CHI patients in the single-task paradigm was longer than the RT produced by controls. CHI effects on dual-task performance and on single-task performance were compared following (1) their transformation into Cohen’s ds, and (2) the application of a correction algorithm taking into account the different reliability of single-task and dual-task measures. The analysis of Cohen’s ds revealed that CHI effects on performance were, if anything, smaller in the dual-task condition than in the single-task condition. The results imply that CHI patient’s slower responding in single- and dual-task performance reflects a single common cause—slowing of the central processing.     

Peer crowds in a commuter college sample: the relation between self-reported alcohol use and perceived peer crowd norms

The author studied peer crowds on a college commuter campus and examined the relation between self-reported alcohol use and perceived peer crowd norms for alcohol use. College students (N = 271) completed questionnaires to determine their peer crowd affiliation and frequency and amount of alcohol use. The author assessed perceived peer-crowd affiliation norms with a series of vignettes describing the typical student that would be associated with each peer crowd. Analyses revealed identifiable peer crowds among college students that represent different patterns of alcohol use both in self-reported alcohol use among students in a peer crowd and in the perceived norms for alcohol use in each peer crowd. The author described the relation between self-reported use and the perceived use by members of one's peer crowd.     

On the control of visual spatial attention: evidence from human electrophysiology

We used electrophysiological methods to track the deployment of visual spatial attention while observers were engaged in concurrent central attentional processing, using a variant of the attentional blink paradigm. Two visual targets (T₁, T₂) were presented at a stimulus onset asynchrony of either 200 ms or 800 ms. T₁ was a white digit among white letters presented on a dark background using rapid serial visual presentation at fixation. T₂ was another digit that was presented to the left or right of fixation simultaneously with a distractor digit in the opposite visual field, each followed by a pattern mask. In each T₂ display, one digit was red and one was green. Half of the subjects reported the red digit and ignored the green one, whereas the other half reported the green digit and ignored the red one. T₁ and T₂ were reported in one block of trials, and only T₂ in another block (order counterbalanced across subjects). Accuracy of report of T₂ was lower at short SOA than at long SOA when both T₁ and T₂ were reported, but was similar across SOA when only T₂ was reported. The electrophysiological results focused on the N2pc component, which was used as an index of the locus of spatial attention. N2pc was reduced in amplitude when subjects reported T₁, and particularly so at the short SOA. The results suggest that attention to T₁ interfered with the deployment of visual spatial attention to T₂.