Keith Lehrer on the basing relation

In this paper, we review Keith Lehrer??s account of the basing relation, with particular attention to the two cases he offered in support of his theory, Raco (Lehrer, Theory of knowledge, 1990; Theory of knowledge, (2nd ed.), 2000) and the earlier case of the superstitious lawyer (Lehrer, The Journal of Philosophy, 68, 311?C313, 1971). We show that Lehrer??s examples succeed in making his case that beliefs need not be based on the evidence, in order to be justified. These cases show that it is the justification (rather than the belief) that must be based in the evidence. We compare Lehrer??s account of basing with some alternative accounts that have been offered, and show why Lehrer??s own account is more plausible.     

Quality of Reasons and Degrees of Responsibility

Traditionally, theories of moral responsibility feature only the minimally sufficient conditions for moral responsibility. While these theories are well-suited to account for the threshold of responsibility, it’s less clear how they can address questions about the degree to which agents are responsible. One feature that intuitively affects the degree to which agents are morally responsible is how difficult performing a given action is for them. Recently, philosophers have begun to develop accounts of scalar moral responsibility that make use of this notion of difficulty [Coates and Swenson 2013; Nelkin 2016]. In this paper, I argue that these accounts, although innovative, are incomplete. The degree to which agents are morally responsible is determined not only by the difficulties that agents face but also by the quality of the reasons for which they act.     

Factors Associated with Suicide Ideation in Severely Obese Bariatric Surgery‐Seeking Individuals

There are high rates of suicide ideation and/or behavior in severely obese individuals. The potential contributors to suicide ideation in a sample of 334 severely obese bariatric surgery candidates was explored. Lack of college education, a history of suicide ideation and/or behavior, psychological distress, hopelessness, loneliness, history of physical and/or sexual abuse, and lifetime major depression were associated with current suicide ideation. Some of the correlates of suicide ideation in severely obese bariatric surgery‐seeking samples are similar to those found in the general community and this knowledge may serve to improve the psychological assessment and care for this group.     

Spatial learning in a T-maze by the crayfish Orconectes rusticus

The T-maze has commonly been used to investigate the mechanisms underlying spatial learning in vertebrates and has yielded much information about how animals use response and place cues to orient toward a goal. We designed a T-maze to study the spatial learning abilities of crayfish (Orconectes rusticus), using tactile stimuli as a place cue and escape from warm water for reinforcement. An initial experiment found that most animals did not display a side-turning bias when first placed in the maze, and hence animals were randomly assigned to escape from the left or the right arm, one of which contained a smooth floor and the other a rough floor. We found that, over repeated trials, the latency to escape and the number of turns made prior to escaping significantly decreased indicating that crayfish learned to escape from the maze more rapidly and efficiently. Learning occurred over the course of six trials on a single day, and over 5 days of testing, providing evidence for spatial memory lasting 24 hr. In probe trials, in which experienced animals started the maze in an arm opposite to that used during training trials, crayfish did not display a preference for either response-based learning or place-based learning. Instead they engaged in renewed exploration of the entire maze. These findings suggest that, in addition to remembering the location of the exit, crayfish also remembered the overall configuration of the maze.     

Extra‐Role Behavior among Mexican Employees: The Impact of LMX,Group Acceptance,and Job Attitudes

The current field study took place within a Mexican work setting, consisting of 100 white‐collar employees representing a variety of professional job categories. The study investigated the direct effect of the supervisor–employee relationship (leader–member exchange) quality and group acceptance on employees' propensity to engage in activities beyond their formal work roles (extra‐role behavior). The mediating influences of the employees' job satisfaction level and organizational commitment were also taken into consideration when accounting for extra‐role behavior. Results suggest that relationships Mexican employees share with their supervisor have a direct impact on their extra‐role behavior. Social exchange, key to both extra‐role behavior and leader–member exchange, is proposed as the operating mechanism associating the two constructs. Results also indicate that organizational commitment plays a partial mediating role between leader–member exchange and extra‐role behavior.     

A Review of the Evidence for a Biological Basis for Snake Fears in Humans

The Psychological Record - Three types of evidence are considered for the view that the propensity of humans to fear snakes is derived from our evolutionary history. It is argued that findings from...     

The ability to tap to a beat relates to cognitive,linguistic, and perceptual skills

Reading-impaired children have difficulty tapping to a beat. Here we tested whether this relationship between reading ability and synchronized tapping holds in typically-developing adolescents. We also hypothesized that tapping relates to two other abilities. First, since auditory-motor synchronization requires monitoring of the relationship between motor output and auditory input, we predicted that subjects better able to tap to the beat would perform better on attention tests. Second, since auditory-motor synchronization requires fine temporal precision within the auditory system for the extraction of a sound’s onset time, we predicted that subjects better able to tap to the beat would be less affected by backward masking, a measure of temporal precision within the auditory system. As predicted, tapping performance related to reading, attention, and backward masking. These results motivate future research investigating whether beat synchronization training can improve not only reading ability, but potentially executive function and auditory processing as well.     

Creative self-efficacy development and creative performance over time

Building from an established framework of self-efficacy development, this study provides a longitudinal examination of the development of creative self-efficacy in an ongoing work context. Results show that increases in employee creative role identity and perceived creative expectation from supervisors over a 6-month time period were associated with enhanced sense of employee capacity for creative work. Contrary to what was expected, employees who experienced increased requirements for creativity in their jobs actually reported a decreased sense of efficaciousness for creative work. Results show that increases in creative self-efficacy corresponded with increases in creative performance as well.