A novel blink detection method based on pupillometry noise

Pupillometry (or the measurement of pupil size) is commonly used as an index of cognitive load and arousal. Pupil size data are recorded using eyetracking devices that provide an output containing pupil size at various points in time. During blinks the eyetracking device loses track of the pupil, resulting in missing values in the output file. The missing-sample time window is preceded and followed by a sharp change in the recorded pupil size, due to the opening and closing of the eyelids. This eyelid signal can create artificial effects if it is not removed from the data. Thus, accurate detection of the onset and the offset of blinks is necessary for pupil size analysis. Although there are several approaches to detecting and removing blinks from the data, most of these approaches do not remove the eyelid signal or can result in a relatively large amount of data loss. The present work suggests a novel blink detection algorithm based on the fluctuations that characterize pupil data. These fluctuations (“noise”) result from measurement error produced by the eyetracker device. Our algorithm finds the onset and offset of the blinks on the basis of this fluctuation pattern and its distinctiveness from the eyelid signal. By comparing our algorithm to three other common blink detection methods and to results from two independent human raters, we demonstrate the effectiveness of our algorithm in detecting blink onset and offset. The algorithm’s code and example files for processing multiple eye blinks are freely available for download (https://osf.io/jyz43).     

An Evaluation of the Relative Effectiveness of Function-Based Consequent and Antecedent Interventions in a Preschool Setting

Although there is substantial functional behavioral assessment (FBA) literature suggesting that function-based interventions are effective for improving problem behavior, only a limited number of studies have examined the effectiveness of function-based antecedent versus consequent interventions. Additionally, although there has been a recent increase in the number of studies conducted in the K–12 school setting, only a limited number of studies have included children in the preschool setting. The present study extends existing literature by examining the effectiveness of function-based antecedent versus consequent interventions for reducing problem behavior and increasing appropriately engaged behavior for preschool children without cognitive disabilities. Following an FBA of 4 children, the effectiveness of a function-based antecedent (i.e., noncontingent reinforcement [NCR]) was compared with a function-based consequent (i.e., differential reinforcement of alternative behavior [DRA]) intervention using an alternating treatments design. Results indicated that both function-based NCR and DRA were effective for decreasing problem behavior and increasing appropriately engaged behavior, with function-based NCR being more effective than DRA for 2 of 4 participants.     

Automated vision occlusion-timing instrument for perception–action research

Vision occlusion spectacles are a highly valuable instrument for visual-perception–action research in a variety of disciplines. In sports, occlusion spectacles have enabled invaluable knowledge to be obtained about the superior capability of experts to use visual information to guide actions within in-situ settings. Triggering the spectacles to occlude a performer’s vision at a precise time in an opponent’s action or object flight has been problematic, due to experimenter error in using a manual buttonpress approach. This article describes a new laser curtain wireless trigger for vision occlusion spectacles that is portable and fast in terms of its transmission time. The laser curtain can be positioned in a variety of orientations to accept a motion trigger, such as a cricket bowler’s arm that distorts the lasers, which then activates a wireless signal for the occlusion spectacles to change from transparent to opaque, which occurs in only 8 ms. Results are reported from calculations done in an electronics laboratory, as well as from tests in a performance laboratory with a cricket bowler and a baseball pitcher, which verified this short time delay before vision occlusion. In addition, our results show that occlusion consistently occurred when it was intended—that is, near ball release and during mid-ball-flight. Only 8% of the collected data trials were unusable. The laser curtain improves upon the limitations of existing vision occlusion spectacle triggers, indicating that it is a valuable instrument for perception–action research in a variety of disciplines.     

Deliberating in the presence of manipulation

According to deliberation compatibilism, rational deliberation is compatible with the belief that one’s actions are causally determined by factors beyond one’s control. This paper offers a counterexample to recent accounts of rational deliberation that entail deliberation compatibilism. The counterexample involves a deliberator who believes that whichever action she performs will be the result of deterministic manipulation. It is further argued that there is no relevant difference between the purported counterexample and ordinary doxastic circumstances in which a determinist deliberates.     

Moral Obligations: Actualist,Possibilist, or Hybridist?

Do facts about what an agent would freely do in certain circumstances at least partly determine any of her moral obligations? Actualists answer ‘yes’, while possibilists answer ‘no’. We defend two novel hybrid accounts that are alternatives to actualism and possibilism: Dual Obligations Hybridism and Single Obligation Hybridism. By positing two moral ‘oughts’, each account retains the benefits of actualism and possibilism, yet is immune from the prima facie problems that face actualism and possibilism. We conclude by highlighting one substantive difference between our two hybrid accounts.     

Selflessness as a Foundation of Spiritual Transcendence: Perspectives From the Neurosciences and Religious Studies

Although of increasing scientific interest, the neurologic foundations of spiritual experiences remain ambiguous due to the neurological complexity of such experiences and the lack of a clear taxonomy of “spiritual experiences.” A previously proposed preliminary neuropsychological model of spirituality (Johnstone & Glass, 2008) suggests that decreased self-orientation (or increased selflessness), associated with reduced right hemisphere/right parietal lobe (RH/RPL) functioning, serves as a neuropsychological foundation of spiritual transcendence (defined as the ability to emotionally and cognitively connect with higher powers beyond the self or experience cosmic unity). This model was based on research that indicates that transcendent spiritual experiences are related to reduced activation of portions of the RH/RPL during religious rituals (e.g., Buddhist meditation, Christian prayer), as well as research that indicates that individuals with RH/RPL dysfunction report increased transcendence. This model has been supported by research with other populations (e.g., brain injury, epilepsy, tumor) and technologies (e.g., repetitive transcranial magnetic stimulation), although limitations in the model persist. The current article addresses such weaknesses by demonstrating the existence of “spiritual transcendence” as a psychometrically valid construct, identifying specific self-orientation processes (e.g., physical self, mental self, autobiographical self) that may serve as a foundation for transcendence, and explaining how transcendent experiences can involve both a decreased and enhanced sense of the self. To further support the model, citations from the texts of multiple faith traditions are offered to illustrate the importance of selflessness in transcendent experiences across diverse religions. Suggestions for future research and practical implications are offered.     

Elucidating Genetic Counseling Outcomes from the Perspective of Genetic Counselors

Outcomes in the field of genetic counseling have not been well-defined or categorized, despite pressures to provide evidence-based measures in all areas of healthcare. This study describes a process to elucidate and categorize a wide-ranging set of outcomes as characterized by diverse groups of practicing genetic counselors. Semi-structured focus groups were conducted at the National Society of Genetic Counselors 2013 NSGC Annual Education Conference during an educational breakout session. A general inductive qualitative research approach was utilized to code focus group notes, categorize them into themes, and compare them across specialty groups. A total of 107 individuals participated in 14 focus groups, consisting of specialists in cancer (n = 20), general genetics (n = 40), prenatal genetics (n = 11), and “other” (n = 36). Of the twelve genetic counseling outcomes themes identified, the most common across focus groups included: 1) appropriateness of testing and accuracy of results interpretation; 2) psychosocial outcomes; 3) adherence to or receipt of appropriate medical management; and 4) patient and provider knowledge. Data assessed by specialty demonstrated similarities in outcomes themes, suggesting that a common set of genetic counseling outcomes would likely be appropriate to cover the majority of needs for the profession. Results can serve as a platform from which to build a more well-defined and comprehensive set of outcomes.     

Promoting Attachment and Mentalization for Parents and Young Children in the Foster Care System: Implementing a New Training and Treatment Approach in an Agency

The Building Blocks Program is an innovative psychodynamic treatment approach that was designed to fit within a social service agency structure. It is based on concepts of attachment, attunement, and mentalization and builds on the research of Beatrice Beebe (2003), Peter Fonagy and colleagues (2002), Arietta Slade (2005), Howard and Miriam Steele (2008), and Dan Stern (1985). The Building Blocks Program targets birth mothers and their young children under age 5 who have been or are in danger of being removed from their families. In the beginning of the program, the Building Blocks therapists faced many challenges. As noted (Remez, this issue), many of the therapists were unfamiliar with a Reflective Supervision model of learning. They were accustomed to a more traditional pedagogical approach that emphasized critiquing their work, with a focus on their clients’ pathology. The Building Blocks model focuses on therapist and client safety and support, prompting a paradigm shift in the therapists’ thinking about supervision and how to conduct therapy.