Neural markers of subordinate‐level categorization in 6‐ to 7‐month‐old infants

Subordinate‐level category‐learning processes in infants were investigated with ERP and looking‐time measures. ERPs were recorded while 6‐ to 7‐month‐olds were presented with Saint Bernard images during familiarization, followed by novel Saint Bernards interspersed with Beagles during test. In addition, infant looking times were measured during a paired‐preference test (novel Saint Bernard vs. novel Beagle) conducted at the conclusion of ERP recording. Slow wave activity corresponded with learning a familiarized category at the subordinate and basic levels, whereas Negative central (Nc) and P400 components were linked with novel category preference. The results provide the first evidence identifying the neural markers of subordinate‐level categorization observed in looking‐time tasks conducted with infants. Moreover, when considered in conjunction with prior research investigating the neural markers of basic‐level categorization in infants, the findings indicate that (1) slow wave and Nc components of infant ERP waveforms are general markers for processes of category learning on the one hand and novel category preference on the other, (2) novel category preference for a contrast category at the basic and subordinate levels have the Nc component in common, but novel category preference at the subordinate level is accompanied by an additional P400 component, a finding in keeping with the notion that subordinate‐level categorization is governed by mechanisms supplementary to those underlying basic‐level categorization, and (3) slow wave activity associated with subordinate‐level learning followed that associated with basic‐level learning by approximately 200 ms, a result in accord with a coarse‐to‐fine scheme for the emergence of category partitioning.     

The Engineering and Science Issues Test (ESIT): A Discipline-Specific Approach to Assessing Moral Judgment

To assess ethics pedagogy in science and engineering, we developed a new tool called the Engineering and Science Issues Test (ESIT). ESIT measures moral judgment in a manner similar to the Defining Issues Test, second edition, but is built around technical dilemmas in science and engineering. We used a quasi-experimental approach with pre- and post-tests, and we compared the results to those of a control group with no overt ethics instruction. Our findings are that several (but not all) stand-alone classes showed a significant improvement compared to the control group when the metric includes multiple stages of moral development. We also found that the written test had a higher response rate and sensitivity to pedagogy than the electronic version. We do not find significant differences on pre-test scores with respect to age, education level, gender or political leanings, but we do on whether subjects were native English speakers. We did not find significant differences on pre-test scores based on whether subjects had previous ethics instruction; this could suggest a lack of a long-term effect from the instruction.     

Enacting the self: Buddhist and Enactivist approaches to the emergence of the self

In this paper, I take up the problem of the self through bringing together the insights, while correcting some of the shortcomings, of Indo–Tibetan Buddhist and enactivist accounts of the self. I begin with an examination of the Buddhist theory of non-self (anātman) and the rigorously reductionist interpretation of this doctrine developed by the Abhidharma school of Buddhism. After discussing some of the fundamental problems for Buddhist reductionism, I turn to the enactive approach to philosophy of mind and cognitive science. I argue that human beings, as dynamic systems, are characterized by a high degree of self-organizing autonomy. Therefore, human beings are not reducible to the more basic mental and physical events that constitute them. I critically examine Francisco Varela’s enactivist account of the self as virtual and his use of Buddhist ideas in support of this view. I argue, in contrast, that while the self is emergent and constructed, it is not merely virtual. Finally I sketch a Buddhist-enactivist account of the self. I argue for a non-reductionist view of the self as an active, embodied, embedded, self-organizing process—what the Buddhists call ‘I’-making (ahaṃkāra). This emergent process of self-making is grounded in the fundamentally recursive processes that characterize lived experience: autopoiesis at the biological level, temporalization and self-reference at the level of conscious experience, and conceptual and narrative construction at the level of intersubjectivity. In Buddhist terms, I will develop an account of the self as dependently originated and empty, but nevertheless real.     

The role of visual attention in multiple object tracking: Evidence from ERPs

We examined the role of visual attention in the multiple object tracking (MOT) task by measuring the amplitude of the N1 component of the event-related potential to probe flashes presented on targets, distractors, or empty background areas. We found evidence that visual attention enhances targets and suppresses distractors (Experiments 1 and 3). However, we also found that when tracking load was light (two targets and two distractors), accurate tracking could be carried out without any apparent contribution from the visual attention system (Experiment 2). Our results suggest that attentional selection during MOT is flexibly determined by task demands, as well as tracking load, and that visual attention may not always be necessary for accurate tracking.     

Teen internet use: relating social perceptions and cognitive models to behavior.

In order to provide Internet researchers with a better understanding of how and why individuals adopt some online behaviors and not others, this study targets teenage Internet users to examine the relationships among social influence and self-regulatory models as mechanisms to the behavior of Internet use. Information, entertainment, and social online activities are presented as three distinct uses of the Internet so corresponding behavioral models of adoption could be tested. Results from 173 high school students indicate that direct and vicarious social perceptions significantly influence self-regulation, which subsequently has an effect on use. Using path analyses to test the direct and indirect theoretical relationships among these constructs, the data indicates that while clearly fitting two of the three models tested, three unique processes to adoption are evident.     

SIGNALING STATIC: ARTISTIC,RELIGIOUS, AND SCIENTIFIC TRUTHS IN A RELATIONAL ONTOLOGY

Abstract. In this essay I point toward the difficulties inherent in ontological objectivity and seek to restore our truth claims to validity through a relational ontology and the dynamic of coimplication in signals and noise. Theological examination of art and science points toward similarities between art, religion, and science. All three have often focused upon a “metaphysics of presence,” the desire for absolute presence of the object (the signified, the divine, the natural object). If we accept a relational ontology, however, we must accept that the revelation of presence is always simultaneously a concealment. This helps explain technoscientific achievement without recourse to a philosophically flawed objectivity. Twentieth‐century information theory shows the impossibility of a “pure signal.” By accepting that signal and noise are permanently interconnected, we begin to see how noise makes signal possible and even how noise becomes signal (allowing the discovery of novel facts). Information theory thus underscores important similarities and leads toward new approaches in aesthetics, Christian theology, and scientific research. By comparing art, religion, and science, I argue that rejecting a metaphysics of presence without rejecting presence itself allows human beings to know the world. Although religion, science, and art often seek the absolute presence of their objects, they function better without.     

Cognition at risk: Gestalt/feature-intensive processing and cigarette smoking in college students

Although previous research has shown the importance of feature-intensive processing of relevant information in the staving off of addictive behaviors, the present study examined the possibility that a more global, gestalt rejection of cigarette smoking may be operating to reduce smoking behavior. The present study addressed this possibility through the use of a decision efficacy rating procedure, in which smoking and nonsmoking respondents were asked to determine whether an individual was justified in smoking in a variety of given situations. Nonsmokers tended to reject smoking under any circumstances, whereas smokers tended to entertain mitigating circumstances more favorably in justifying smoking, especially when smoking could be construed as providing some perceived positive gains in serious situations. Results are discussed in terms of the gestalt/feature-intensive processing theory of cognition, and in terms of the importance of cognitive approaches to the understanding of addictive behaviors.     

Tier 1 and Tier 2 early intervention for handwriting and composing

Three studies evaluated Tier 1 early intervention for handwriting at a critical period for literacy development in first grade and one study evaluated Tier 2 early intervention in the critical period between third and fourth grades for composing on high stakes tests. The results contribute to knowledge of research-supported handwriting and composing instruction that informs practice as school psychologists are empowered to embrace the role of intervention specialist. The first study found that neurodevelopmental training (orthographic-free motor activities and motor-free orthographic activities) led to improved accuracy and legibility of letter formation, but that direct handwriting instruction with visual cues and verbal mediation led to improved automatic handwriting (rate of writing legible letters) and transfer to improved word reading. The second study found that neither motor training nor orthographic training alone added value to direct instruction in automatic letter writing and composing practice in developing handwriting skills, which transferred to improved word reading; but the added motor training did improve performance on a grapho-motor planning task for sequential finger movements that is relevant to composing. A related analysis showed that direct instruction with visual cues and memory delays may reduce reversals. A third study found that adding handwriting to reading instruction improved handwriting but did not add value to reading outcomes for at risk readers; reading instruction alone was beneficial for word reading, decoding, and comprehension. The fourth study showed that comprehensive, explicit instruction in the processes of composition led to more significant improvement, based on group and individual data, than did the regular fourth grade program, on high stakes writing assessment.     

WHAT IS A SCIENTIFIC WORLD VIEW,AND HOW DOES IT BEAR ON THE INTERPLAY OF SCIENCE AND RELIGION?

Abstract. What is a scientific worldview, and why should we care? One worldview can knit together various notions, and therefore understanding a worldview requires analysis of its component parts. Stripped to its minimum, a scientific worldview consists strictly of falsifiable components. Such a worldview, based solely on ideas that can be tested with empirical observation, conforms to the highest levels of objectivity but is severely limited in utility. The limits arise for two reasons: first, many falsifiable ideas cannot be tested adequately until their repercussions already have been felt; second, the reach of science is limited, and ethics, which compose an inevitable part of any useful worldview, are largely unfalsifiable. Thus, a worldview that acts only on scientific components is crippled by a lack of moral relevance. Organized religion traditionally has played a central role in defining moral values, but it lost much of its influence after the discovery that key principles (such as the personal Creator of Genesis) contradict empirical reality. The apparent conundrum is that strictly scientific worldviews are amoral, while many long‐held religious worldviews have proven unscientific. The way out of this conundrum is to recognize that nonscientific ideas, as distinct from unscientific ideas, are acceptable components of a scientific worldview, because they do not contradict science. Nonscientific components of a worldview should draw upon scientific findings to explore traditional religious themes, such as faith and taboo. In contrast, unscientific ideas have been falsified and survive only via ignorance, denial, wishful thinking, blind faith, and institutional inertia. A worldview composed of both scientific components and scientifically informed nonscientific components can be both objective and ethically persuasive.