Selective inhibition in children with attention-deficit hyperactivity disorder off and on stimulant medication

Selective inhibition requires discrimination between auditory signals and is assessed using a modification of the stop-signal task. Selective inhibition was assessed in a group of 59 clinic-referred, DSM-IV-diagnosed children with attention-deficit hyperactivity disorder (ADHD) and compared to that of a community sample of 59 children. Methylphenidate (MPH) effects on selective inhibition were assessed in a subset of the ADHD sample that participated in an acute, randomized, placebo-controlled, crossover trial with 3 fixed doses of MPH. Children with ADHD performed more poorly than controls on the majority of selective stop-signal task parameters: they exhibited more anticipatory (invalid) responses, with less accurate and more variable responses on the response execution task, as well as a slower selective inhibition process. MPH improved speed of both inhibition and response execution processes; it also reduced variability of response execution and decreased nonselective inhibition. On the one hand, findings are consistent with purported inhibition deficit in ADHD, but on the other hand, suggest that neither the impairment itself, nor MPH effects, were restricted to inhibition.     

Repetition priming mediated by task similarity in semantic classification

In the present study, the specificity of repetition priming between semantic classification tasks was examined using Osgood's (Osgood, Suci, & Tannenbaum, 1957) semantic space as a heuristic for determining the similarity between classifications. The classification tasks involved judging the meaning of words on semantic scales, such as pleasant/unpleasant. The amount of priming across classifications was hypothesized to decrease with increasing distance (decreasing similarity) between semantic scales in connotative semantic space. The results showed maximum repetition priming when the study and the test classifications were the same, intermediate degrees of priming when the study and the test classification scales shared loadings on semantic factors, and little priming when the study and the test classification scales loaded primarily on orthogonal semantic factors--that is, when the distance between scales was maximized. Consistent with the transfer-appropriate processing framework, repetition priming in semantic classifications was highly task specific, decreasing with increasing distance between classification scales.     

The Rotter Incomplete Sentences Blank: examining potential race differences

The Rotter Incomplete Sentences Blank (RISB; Rotter, Lah, & Rafferty, 1992; Rotter & Rafferty, 1950) was administered to African American (n = 94) and White (n = 100) members of fraternal organizations at a large Midwestern university to explore possible influences of racial group and socially desirable response tendencies. The RISB protocols were reliably scored (interrater agreement = 92%) by 3 independent scorers blind to participant racial membership. The mean scores of the 2 racial groups were not significantly different (p > .05). However, using the traditional categorical placement scores resulted in a disproportionate assignment rate for African American scores to the maladjusted group than would be anticipated by mere chance.     

Further examination of the treatment of multiply controlled inappropriate mealtime behavior

We systematically replicated Bachmeyer et al. (2009) by examining extinction procedures matched to each function, individually and in combination, to treat the food or liquid refusal of 4 children diagnosed with a feeding disorder whose inappropriate mealtime behavior was maintained by multiple functions (i.e., escape and attention). Previous research suggests that adding differential reinforcement to extinction procedures may result in better treatment outcomes. Therefore, we added differential reinforcement to extinction procedures matched to each function. Differential reinforcement and extinction matched only to escape or attention resulted in low rates of inappropriate mealtime behavior and high, stable levels of acceptance for only 1 child. Consistent with Bachmeyer et al., inappropriate mealtime behavior decreased, and acceptance increased for the remaining 3 children only after we matched differential reinforcement and extinction procedures to both escape and attention.     

How Did You Like This Course? The Advantages and Limitations of Reaction Criteria in Ethics Education

Ethics courses are most commonly evaluated using reaction measures. However, little is known about the specific types of reaction data being collected (e.g., content relevance, course satisfaction) and how these reaction data relate to improvements in trainee performance (e.g., knowledge, moral reasoning). Using a sample of 381 ethics training sessions, major reaction data categories were identified. Content and course satisfaction were the most frequently collected types of reaction criteria. Furthermore, content relevance (r = .84) and course satisfaction (r = .79) showed strong, positive relationships with performance criteria, whereas content satisfaction demonstrated a moderate, negative relationship (r = –.28). These results and future directions for ethics training evaluation are discussed.     

What is space? A media ecology approach

We will explore the nature of space from a media ecology/Marshall McLuhan point of view. We will examine both space and time as the origin or etymology of the term ‘space’ includes both the notion of 3-space and time. We show how various media of communication influence how we perceive space and time from the origin of language to today’s digital revolution.     

Comparison of Video Prompting with and Without Voice‐Over Narration: A Replication with Young Children with Autism

We compared the effects of video prompting (VP) with and without voice‐over narration on the play skills of two young children with autism spectrum disorder using an adapted alternating treatment design. The results showed increases in play skills when using VP with and without voice‐over narration for both participants. These results suggest that the difference in effectiveness between VP with and without voice‐over narration may be negligible for some children with autism. Implications for the use of VP without additional teaching strategies and the need for additional component analyses are discussed. Copyright © 2016 John Wiley & Sons, Ltd.     

Using spatial terms to select an object

Our interactions with the world often involve selecting one object from a cluttered array of objects. One way to accomplish this is with language. For example, spatial terms, such as above, guide selection by specifying the position of one object (the located object) with respect to a second object (the reference object). Most of the work on the apprehension of spatial terms has examined displays that contain only these two objects. In the present paper, we examine how the presence of an extra object (a distractor) in the display impacts apprehension. Consistent effects of distractor presence were obtained across acceptability-rating and speeded sentence/picture verification tasks. Importantly, these effects were independent of the placement of the distractor. These results suggest that the distractor has its influence during processes that spatially index and identify the located and reference objects and that processes involved in computing the spatial term operate only on these objects.