Is Explanatoriness a Guide to Confirmation? A Reply to Climenhaga

We (2013, 2014) argued that explanatoriness is evidentially irrelevant in the following sense: Let H be a hypothesis, O an observation, and E the proposition that H would explain O if H and O were true. Then our claim is that Pr(H | O & E) = Pr(H | O). We defended this screening-off thesis (SOT) by discussing an example concerning smoking and cancer. Climenhaga (Philos Sci, forthcoming) argues that SOT is mistaken because it delivers the wrong verdict about a slightly different smoking-and-cancer case. He also considers a variant of SOT, called “SOT*”, and contends that it too gives the wrong result. We here reply to Climenhaga’s arguments and suggest that SOT provides a criticism of the widely held theory of inference called “inference to the best explanation”.     

Competing Contingencies Over Derived Relational Responding: A Behavioral Model of the Implicit Association Test

The Psychological Record - Subjects were exposed to a word-picture association training phase in which each of 2 arbitrary nonsense syllables printed in blue and red font, respectively, were paired...     

A contemporary behavior analysis of anxiety and avoidance

Despite the central status of avoidance in explaining the etiology and maintenance of anxiety disorders, surprisingly little behavioral research has been conducted on human avoidance. In the present paper, first we provide a brief review of the empirical literature on avoidance. Next, we describe the implications of research on derived relational responding and the transformation of functions for a contemporary behavioral account of avoidance, before providing several illustrative research examples of laboratory-based analogues of key clinical treatment processes. Finally, we suggest some challenges and opportunities that lie ahead for behavioral research on anxiety and avoidance.     

Concurrent task performance enhances low-level visuomotor learning

Visuomotor association learning involves learning to make a motor response to an arbitrary visual stimulus. This learning is essential for visual search and discrimination performance and is reliant upon a well-defined neural circuit in the brain that includes the prefrontal cortex and the hippocampal formation. In the present study, we investigated the possible role of attentional processes during such learning using dual-task interference. A motor, verbal, or perceptual concurrent task was performed during the learning/training block of a simple visual discrimination task. Contrary to expectation, the dual-task groups showed improved learning and learning-dependent performance compared with untrained control and non-dual-task trained groups. A second experiment revealed that this effect did not appear to be due to increased arousal level; the inclusion of alerting tones during learning did not result in facilitation. These findings suggest that the engagement of attention, but not arousal, during the acquisition of a visuomotor association can facilitate this learning and its expression.     

A Function Acquisition Speed Test for Equivalence relations (Faster)

The Psychological Record - The current study employed a stimulus equivalence paradigm to assess the ability of the recently developed Function Acquisition Speed Test (FAST) to measure the existence...     

Media consumption and crime trend perceptions: a longitudinal analysis

ABSTRACT

For over two decades, despite the downward crime trend, the American public has persisted in believing crime is on the rise. Cultivation theory holds that the media is responsible for the public’s crime trend perceptions. Previous cultivation studies heavily rely on cross-sectional data, which may lead to spurious conclusions due to reverse causation and omitted variable bias. This study aims to address these issues by utilizing longitudinal analyses. Drawing on three waves of the 2008–2009 American National Election Survey, we test the cultivation hypothesis using traditional OLS, OLS with lagged crime trend perceptions, fixed effects, and dynamic panel models. Newspaper and TV news consumption are related to crime trend perceptions in traditional OLS models. In other models, media consumption is not related to crime trend perceptions. The results do not support the cultivation hypothesis. It is likely that the cultivation effect of media has been overstated in the previous cross-sectional research.