Configural representations in spatial working memory

Two studies investigate the nature of representations in spatial working memory, directly addressing the question of whether people represent the configuration information above and beyond independent positional information when representing multiple sequentially presented locations. In Experiment 1, participants performed a location memory task in which they recalled the location of objects that were presented sequentially on a screen. Comparison of participants' data with simulated data modelled to represent independent positional representation of spatial locations revealed that participants represented the configural properties of shorter sequences (3 and 4 locations) but not of longer ones (5 and 7 locations). Experiment 2 employed a sequential recognition task in which participants were asked to judge whether two consequently presented spatial sequences were identical. These experiments confirmed sensitivity to configural properties of spatial sequences.     

An analysis of reinforcement history effects

Four pigeons were exposed to two tandem variable-interval differential-reinforcement-of-low-rate schedules under different stimulus conditions. The values of the tandem schedules were adjusted so that reinforcement rates in one stimulus condition were higher than those in the other, even though response rates in the two conditions were nearly identical. Following this, a fixed-interval schedule of either shorter or longer values than, or equal to the baseline schedule, was introduced in the two stimulus conditions respectively. Response rates during those fixed-interval schedules typically were higher in the presence of the stimuli previously correlated with the lower reinforcement rates than were those in the presence of the stimuli previously correlated with the higher reinforcement rates. Such effects of the reinforcement history were most prominent when the value of the fixed-interval schedule was shorter. The results are consistent with both incentive contrast and response strength conceptualizations of related effects. They also suggest methods for disentangling the effects of reinforcement rate on subsequent responding, from the response rate with which it is confounded in many conventional schedules of reinforcement.     

The Inducement of Meaningful Work: A Response to Anderson and Weijer

James A. Anderson and Charles Weijer take the wage payment model proposed by Neil Dickert and Christine Grady and extend the analogy of research participation to unskilled wage labor to include just working conditions. Although noble in its intentions, this moral extension generates unsavory outcomes. Most notably, Anderson and Weijer distinguish between two types of research subjects: occasional and professional. The latter, in this case, receives benefits beyond the moral minima in the form of “the right to meaningful work.” The problem is that meaningful work can itself be a form of inducement, and consequently, may in fact increase the incidence of inducement contrary to the intentions of the wage payment model.     

Learning to control brain activity: a review of the production and control of EEG components for driving brain-computer interface (BCI) systems

Brain-computer interface (BCI) technology relies on the ability of individuals to voluntarily and reliably produce changes in their electroencephalographic (EEG) activity. The present paper reviews research on cognitive tasks and other methods of generating and controlling specific changes in EEG activity that can be used to drive BCI systems. To date, motor imagery has been the most commonly used task. This paper explores the possibility that other cognitive tasks, including those used in imaging studies, may prove to be more effective. Other factors which influence performance are also considered in relation to selection of tasks, as well as training of subjects.     

Maintaining High Subject Retention in Follow-Up Studies of Children with Mental Illness

Measuring a program's success in enabling a child to improve functioning at home, school, and the community requires careful tracking of children's progress during the intervention and after it is completed. Attrition is often a major problem in carrying out longitudinal research. I present a number of strategies for maintaining high rates of response in follow-up studies, including how to choose a study design that enhances participation, how to locate study participants, how to engage study participants, and how to select and train high quality interviewers. The strategies presented have been used with success by a children's mental health agency and may be helpful to other researchers as they evaluate programs, measure outcomes, and study the life course of children with mental illness.     

“Some more” notes,toward a “third” sophistic

Historians of rhetoric refer to two Sophistics, one in the 5th century B.C. and another c. 2nd century A.D. Besides these two, there is a 3rd Sophistic, but it is not necessarily sequential. (The 3rd is counter to counting sequentially.) Whereas the representative Sophists of the 1st Sophistic is Protagoras, and the second, Aeschines, the representative sophists of the 3rd are Gorgias (as proto-Third) and Friedrich Nietzsche, Jean-François Lyotard, Michel Foucault, Jacques Lacan, and Paul de Man.To distinguish between and among Socrates, Plato, and Aristotle, and then Protagoras, Gorgias, and Lacan, the author determines how far each of these personages can count. The model of counting, used semiotically across the topoi of possible/impossible, is that of the people of New Guinea: one thing, two things, many things. It is determined (generally) that the philosophers, including Aristotle, count to one; the Sophists to two; and Gorgias, Lacan, and Lyotard, et al. count to many things, thereby breaking up a monism or binarism. The ancient philosophers employ a substratum of probability to hold together the contraries of possible/impossible; the Sophists employ anti/logic, which keeps the contraries/antitheses separate and therefore without synthesis, but which eventually threatens the integrity of the substratum, or the law of non-contradiction; and Gorgias, Lacan, Lyotard et al. theorize about the impossibility/Resistance of the Logos (reason, logic, law, argumentation, history) to Theory/Totalization, because of the Gorgian Kairos and the Lacanian Real — both of which enter the Logos and break up the cycle of the antitheses and create something new, irrational (Untersteiner).This breaking up has a negative/positive influence on Protagoras's man-measure doctrine, which in turn has a similar influence on the problem of the ethical subject. The subject/agent not only no longer knows (by way of Logos) but also no longer acts (as independent agent); the subject becomes a function of Logos as determined by Kairos/Real; it moves from a hypotaxis/syntaxis of one and two to a radical parataxis/paralogy of some more.From the Impossibility/tragedy of knowledge, however, comes the Possible, or Possibilisms, which allows for the new (though divided) ethical subject to reclaim its position as individual. Such a reclamation of the subject, however, has a profound effect on argumentation, and especially the notion of consensus. What is wanted, then, in a Third Sophistic ethical — as opposed to a political — rhetoric is dissensus through radical parataxes and paralogies.     

Rhetorics of truth,justice and secrecy in Pascal's text

Beginning from a definition of philosophical discourse which states the necessity of rhetoric meant as the whole of the linguistic devices aiming to persuade the interlocutor of truth and justice, the author points out that Pascal's text would be an outstanding example of such a discourse, while showing, nevertheless, the specificity of the rhetoric he employs. Such a specificity would aim to carry out a complex logic of the secret, concerning chiefly the ackowledgement and identification procedures of the subject of the discourse-enunciation, and its pronominal and nominal markers.The author studies this logic on one hand by starting from the pragmatic patterns developed by the linguistics of enunciation, and on the other taking into account the philosophical, ethical and religious themes of the Jansenist thought in the XVIIth century. The distinction between concealment and secret leads the author to set up the forms of political rhetoric against the actual Pascalian aspects of philosophical rhetoric. Such a logic of the secret, which is the projection of the hidden God teologema into the field of philosophical discourse, would enable us to position as absent the subject producing this discourse and thus to transform what he states into a discourse of truth and justice. The very careful examination of the anonymity strategies and mostly of the writing tactics concerning the author's real name (anagram) would seem to confirm this conception of the rhetoric of Pascal's philosophical discourse.     

Warmup in free-operant avoidance as a function of the response-shock = shock-shock interval

Warmup effects, the repeated within-session transitions from ineffective to effective avoidance, were examined with rats on free-operant shock-delay procedures. The shock-shock and response-shock intervals were kept equal as they were varied. As measured by both response rates and shock rates, the magnitude of within-session change in performance was inversely related to the size of the manipulated intervals. The duration of warmup tended to decrease as the intervals were increased. This finding, that increased shock frequencies do not shorten the warmup, appears to be inconsistent with all interpretations of the warmup that have been offered to date. Late-session performances replicated general features of prior experiments, but differed with respect to details of secondary conclusions in previous reports. These differences may stem from the selection of especially proficient avoiders for previous experiments.     

论道德惩罚及其目的

道德惩罚作为一种非强制性的制裁手段对于规约和范导道德行为体的行为有着重要的作用。道德惩罚通过公共舆论、传统习俗、内心信念和道德良心等对违背道德法则的行为或坏的道德品质予以谴责,对社会道德风尚产生不良影响的行为体的道德权利予以限制和剥夺,从而促使该道德行为体实现由恶向善的转化,达到维护道德良知的、重申道德秩序的目的。     

From Assessment to Design: What Is Really Needed in Technology Accompaniment to Achieve Subject Constitution?

Based on the argument that technologies mediate human experience and praxis, the idea of technology accompaniment has been suggested as an approach to developing human-tech relations. In light of this idea, this paper argues, firstly, that when technologies inevitably have moral relevance in influencing human perceptions and actions, the constitution of a moral subject has much to do with shaping technological mediation deliberately and creatively. While there is not always a direct connection between what humans know and what humans do, technological mediation can help to strengthen people’s motivation to do the right thing. Subsequently, we examine two approaches that have often been suggested for realizing subject-constitution-with-technology: one is Technology Assessment, and the other is Mediation Design. Although the former can equip people with knowledge about technological mediation, it is relatively weak when it comes to directly producing moral behavior. In contrast, the latter not only exerts a more direct impact on user behavior but may also improve people’s moral knowledge. Nonetheless, both approaches face the general challenge of moral education. As moral knowledge does not guarantee moral behavior, knowing facts and theories about technological mediation may not lead to subject constitution as a result of the development of the human-tech relationship. To overcome this difficulty, an extension of the latter approach is proposed. The design of meta-mediation has great potential to shift users’ attention to the aforementioned mediating effect of technology-in-use and, thereby, users’ subject constitution can be enabled.