The Effects of Hippocampal and Area Parahippocampalis Lesions in Pigeons: II. Concurrent Discrimination and Spatial Memory

Two experiments were conducted to examine the effects of bilateral hippocampus (Hp) and area parahippocampalis (APH) lesions in pigeons on the acquisition of a visual and spatial task. In Experiment 1, pigeons were trained on three successive six-pair concurrent discrimination tasks, each using a novel set of stimuli. There was no difference between control unoperated pigeons and Hp-APH pigeons in terms of the number of sessions required to learn either the first, second, or third concurrent discrimination task. In Experiment 2, the same pigeons were trained on an open-field spatial task similar in many ways to the radial-arm maze task used with rats. In contrast to the absence of impairments on the visual concurrent discrimination task, pigeons with Hp-APH lesions were severely impaired on the acquisition of the spatial task. These findings support the view that the Hp-APH in pigeons is important for the processing of spatial, rather than visual information.     

Toward a new transcendental aesthetic: Merleau-Ponty’s appraisal of Kant’s philosophical method

ABSTRACT

In light of the central role scientific research plays in Merleau-Ponty’s phenomenology, the question has arisen whether his phenomenology involves some sort of commitment to naturalism or whether it is better understood along transcendental lines. In order to make headway on this issue, I focus specifically on Merleau-Ponty’s method and its relationship to Kant’s transcendental method. On the one hand, I argue that Merleau-Ponty rejects Kant’s method, the ‘method-without-which’, which seeks the a priori conditions of the possibility of experience. On the other hand, I show that this does not amount to a methodological rejection of the transcendental altogether. To the contrary, I claim that Merleau-Ponty offers a new account of the transcendental and a priori that he takes to be the proper subject matter of his phenomenological method, the method of ‘radical reflection’. And I submit that this method has important affinities with aesthetic themes in Kant’s philosophy.     

Charting directions for a new research era: addressing gaps and advancing scholarship in the study of psychological contracts

ABSTRACT

The nature of work and the contexts in which firms operate have changed significantly in the many decades since the study of psychological contracts (PCs) at work began in earnest. These changes have altered the contours of the traditional employer-employee relationship and are key motivators of this Special Issue. We seek to chart new directions for PC research over the next decade by widening the theoretical and methodological lenses used to explore PC processes. In the introductory editorial we briefly outline the PC construct, overview the collected papers, and discuss the next exciting wave of PC research (exploring PC dynamics, PC counterparties, and the PC context) inspired by this collection.     

Elementary Students’ Motivation to Read and Genre Preferences

Abstract

This study examines the psychometric properties of a reading motivation measure with a sample of upper elementary students in the United States (n?=?195). The research explores upper elementary students’ motivation to read, the amount/frequency of their reading in general, and their preferences for different text genres. Factor analyses support the validity and reliability of the SRQ-RM for upper elementary students in the United States, a tool not previously used with this population. This study also included a nuanced assessment of students’ genre preferences, which has implications for reading motivation and effective classroom instruction.     

Family Therapy for Substance Use among Sexual Minority Youth: A Review of Treatment Options

Abstract

Substance use disorders are nearly twice as common among sexual minority youth (SMY) as among their heterosexual peers. Most applied literature about this population suggests interventions on either the individual or community level, and the benefits of family therapy for this population are often overlooked. The present literature review (a) outlines clinical knowledge related to sexual minority youth and substance use (e.g., prevalence rates, contributing factors), (b) discusses the importance of clinical self-awareness around these topics, and (c) outlines clinical behaviors and interventions from literature that may be employed when working with substance-using SMY and their families.     

Anxiety sensitivity and daily cigarette smoking in relation to sleep disturbances in treatment-seeking smokers

ABSTRACT

Although the association between anxiety and sleep disturbance is well-documented, the underlying mechanisms are less clear. Anxiety sensitivity (AS), the fear of physiological arousal and bodily sensations, is a risk factor for anxiety and poor sleep. Smoking also contributes to poor sleep and may compound the effects of AS on sleep quality. This study evaluated the main and interactive effects of AS and cigarettes/day on sleep quality among smokers. Participants (n = 190) were adult treatment-seeking daily smokers who completed a baseline assessment as part of a larger smoking cessation trial. Sleep quality was self-reported. Results indicated that AS was significantly correlated with greater disturbance in sleep duration, subjective sleep quality, sleep onset latency, sleep disturbance, daytime dysfunction, and sleep medication use. There was a significant interaction between AS and cigarettes/day in terms of sleep onset latency, but not other sleep quality indices. AS was associated with significantly longer sleep onset latency minutes among heavier smokers, but not lighter smokers. Specifically, the association between AS and sleep onset latency was significant for those who smoked ≥ 33 cigarettes/day. AS is a psychological factor that may contribute to poor sleep quality, especially in heavy smokers, and thus may be a promising intervention target.     

It’s All About Timing: An Imagery Intervention Examining Multiple Image Speed Combinations

The current quasi-experiment examined changes in youth baseball players’ (N = 9) swing performance following an imagery intervention. Athletes participated in one of three conditions, each of which employed a different combination of slow-motion (SM), real-time (RT), or fast-motion (FM) image speeds: SM?+?RT, RT?+?FM, or SM?+?RT?+?FM. A single-subject multiple-baseline design was employed. The intervention approximated the real-world environment in which baseball players practice, thus, increasing representative design. Results generally indicated positive changes across all three conditions, however, the SM?+?RT?+?FM condition exhibited the most improvement. The employment of a multiple-speed imagery intervention appears to be a viable option for young athletes.

Lay Summary: Can using a combination of slow-motion, real-time, and fast-motion imagery improve baseball batting performance? Our results suggest so! Learn more in “It’s all about timing: An imagery intervention examining multiple image speed combinations’ by @jennyo_csueb @Frank_O_Ely & @samagalas #JASP