A fiber-optic system for recording skin conductance in the MRI scanner

The acquisition of the skin conductance response (SCR) during functional magnetic resonance imaging (fMRI) raises significant safety issues, as well as practical ones, which need to be addressed in order for these experiments to be conducted safely and successfully. Metallic and conductive wires in the presence of time-varying gradient magnetic fields such as those present in fMRI experiments may induce heating, as well as electric fields, in these components and, if in contact with the subject, could produce severe burns and electric shocks. Moreover, these metallic and conductive components can significantly distort the magnetic field, resulting in image artifacts. A system for recording the SCR in humans simultaneously with fMRI is presented. The device is a fiber-optic-based transducer, which records the SCR from two fingers of the same hand, using electrodes containing inline radio frequency (RF) suppression filters and protective resistive loads. The fiber-optic SCR transducer was tested using 1.5 and 3.0 Tesla MRI scanners running EPI sequences. This system was able to safely record SCRs free of RF interference during an fMRI experiment, and the fiber-optic design of the transducer eliminated any artifacts on the MRI scan.     

Plantinga’s Skepticism

For over 20 years, Alvin Plantinga has been advocating his Evolutionary Argument against Naturalism, or EAAN. We will argue that this argument functions as an atypical form of global skepticism, and Plantinga’s development of it has repercussions for other types of skepticism. First, we will go over the similarities and differences; for example, the standard ways of avoiding other forms of skepticism, namely by adopting some form of naturalized or externalist epistemology, do not work with the EAAN. Plantinga himself is a naturalized epistemologist, and his skepticism comes from within this perspective. Next, we will look at how Plantinga moved from presenting his skepticism diachronically, as a loop, to presenting it synchronically, as an infinite regress. Finally, we can extend this move from Plantinga’s skepticism to other forms of global skepticism, in so far as these will involve the rejection of our cognitive faculties’ reliability, and formulate them synchronically as well. Global skepticism is often accused of instability, since it leads us to skepticism about all of our beliefs, including belief in the skeptical scenario itself. Yet formulating it as an infinite regress rather than a loop allows the skeptical charge to go forward.     

Heideggerian hermeneutics and its application to sport

Whilst hermeneutics had been traditionally associated with the interpretation of texts, Martin Heidegger gave it a new meaning, associating it with the interpretation of the existence (the ‘being’) of Dasein. This paper will explain the Heideggerian understanding of hermeneutics, based on the early work of Heidegger (especially Being and Time and other related works from this period) which focuses on the analysis of the being of Dasein. His main contribution was a shift of focus from the interpretation of an unknown object (a text) to the interpretation of the human being (Dasein), which Heidegger sees as primary, since it is on the basis of Dasein’s understanding that other things and beings are interpreted. Firstly, the paper discusses hermeneutics in relation to human being (Dasein), with a brief introduction to the main characteristics of Dasein (including the ‘existentialia’), showing the place of hermeneutics within Dasein’s existence, together with Heidegger’s re-interpretation of the hermeneutic circle. Secondly, this understanding is applied to sport, focusing on the experience of athletes and on the possibilities for interpretations towards authentic existence, including its ethical aspect.     

Alcohol Use and Church Attendance Among Seventh Through Twelfth Grade Students,Dominican Republic, 2011

Excessive alcohol consumption increases the years of life lost to premature death and disability worldwide. Religion is a mitigating factor in alcohol consumption. A survey in the Dominican Republic showed increasing church attendance by middle and high school students (N = 3,478) was associated with a delay in age at first alcoholic drink, fewer students who had consumed alcohol in the past month (current drinkers), lower alcohol consumption levels, fewer episodes of inebriation, and less heavy episodic alcohol consumption (all P < 0.0001). The results suggested that it may be useful to conceive of church-attending youth as a subset of the adolescent social network when planning primary alcohol prevention programs for young people.     

Degrees of resilience: profiling psychological resilience and prospective academic achievement in university inductees

University inductees may be increasingly vulnerable to stressors during transition into higher education (HE), requiring psychological resilience to achieve academic success. This study aimed to profile inductees' resilience and to investigate links to prospective end of year academic outcomes. Scores for resilience were based on a validated Connor Davison Resilience Scale (CD-RISC) drawn from 1534 inductees in a single UK university. A four-stage analysis revealed that incremental resilience was more facilitative of females' prospective academic attainment, but less functional and more convoluted for males. This large, distinctive study has implications for student support practices and highlights that the relationship between resilience and academic achievement requires further consideration in HE.     

The face-specific proportion congruency effect: social stimuli as contextual cues

Previous research shows that larger interference is observed in contexts associated with a high proportion of congruent trials than in those associated with a low proportion of congruent trials. Given that one of the most relevant contexts for human beings is social context, researchers have recently explored the possibility that social stimuli could also work as contextual cues for the allocation of attentional control. In fact, it has been shown that individuals use social categories (i.e., men and women) as cues to allocate attentional control. In this work, we go further by showing that individual faces (instead of the social categories they belong to) associated with a high proportion of congruent trials can also lead to larger interference effects compared to individual faces predicting a relatively low proportion of congruent trials. Furthermore, we show that faces associated with a high proportion of congruent trials are more positively evaluated than faces associated with a high proportion of incongruent trials. These results demonstrate that unique human faces are potential contextual cues than can be employed to apply cognitive control when performing an automatic task.     

Linguistic and Perceptual Mapping in Spatial Representations: An Attentional Account

Building on evidence for embodied representations, we investigated whether Spanish spatial terms map onto the NEAR/FAR perceptual division of space. Using a long horizontal display, we measured congruency effects during the processing of spatial terms presented in NEAR or FAR space. Across three experiments, we manipulated the task demands in order to investigate the role of endogenous attention in linguistic and perceptual space mapping. We predicted congruency effects only when spatial properties were relevant for the task (reaching estimation task, Experiment 1) but not when attention was allocated to other features (lexical decision, Experiment 2; and color, Experiment 3). Results showed faster responses for words presented in Near‐space in all experiments. Consistent with our hypothesis, congruency effects were observed only when a reaching estimate was requested. Our results add important evidence for the role of top‐down processing in congruency effects from embodied representations of spatial terms.