Age-related changes in deterministic learning from positive versus negative performance feedback

Feedback-based learning declines with age. Because older adults are generally biased toward positive information (“positivity effect”), learning from positive feedback may be less impaired than learning from negative outcomes. The literature documents mixed results, due possibly to variability between studies in task design. In the current series of studies, we investigated the influence of feedback valence on reinforcement learning in young and older adults. We used nonprobabilistic learning tasks, to more systematically study the effects of feedback magnitude, learning of stimulus–response (S–R) versus stimulus–outcome (S–O) associations, and working-memory capacity. In most experiments, older adults benefitted more from positive than negative feedback, but only with large feedback magnitudes. Positivity effects were pronounced for S–O learning, whereas S–R learning correlated with working-memory capacity in both age groups. These results underline the context dependence of positivity effects in learning and suggest that older adults focus on high gains when these are informative for behavior.     

Questioning implicit motor learning as instantiated by the pursuit-tracking task

The effect of concurrent visual feedback on the implicit learning of repeated segments in a task of pursuit tracking has been tested. Although this feedback makes it possible to regulate the positional error during the movement, it could also induce negative guidance effects. To test this hypothesis, a first set of participants (N?=?42) were assigned to two groups, which performed either the standard pursuit-tracking task based on the experimental paradigm of Pew (1974 Pew, R. W. 1974. Levels of analysis in motor control. Brain Research, 71: 393–400. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar]; group F-ST), or a task called “movement reproduction” in which the feedback was suppressed (group noF-ST). A second set of participants (N?=?26) performed in the same feedback condition groups but in a dual-task situation (F-DT and noF-DT; Experiment 2). The results appear to confirm our predictions since the participants in groups without feedback, contrary to those in groups with feedback, succeeded with practice in differentiating their performances as a function of the nature of the segments (repeated or nonrepeated) both in simple (Experiment 1) and in dual-task (Experiment 2) situations. These experiments indicate that the feedback in the pursuit-tracking task induces a guidance function potentially resulting in an easiness tracking that prevents the participants from learning the repetition.     

The distinction between tapping and circle drawing with and without tactile feedback: An examination of the sources of timing variance

An internal clock-like process has been implicated in the control of rhythmic movements performed for short (250–2,000 ms) time scales. However, in the past decade, it has been claimed that a clock-like central timing mechanism is not required for smooth cyclical movements. The distinguishing characteristic delineating clock-like (event) from non-clock-like (emergent) timing is thought to be the kinematic differences between tapping (discrete-like) and circle drawing (smooth). In the archetypal event-timed task (tapping), presence of perceptual events is confounded with the discrete kinematics of movement (table contact). Recently, it has been suggested that discrete perceptual events help participants synchronize with a metronome. However, whether discrete tactile events directly elicit event timing has yet to be determined. In the present study, we examined whether a tactile event inserted into the circle drawing timing task could elicit event timing in a self-paced (continuation) timing task. For a majority of participants, inserting an event into the circle drawing task elicited timing behaviour consistent with the idea that an internal timekeeper was employed (a correlation of circle drawing with tapping). Additionally, some participants exhibited characteristics of event timing in the typically emergently timed circle drawing task. We conclude that the use of event timing can be influenced by the insertion of perceptual events, and it also exhibits persistence over time and over tasks within certain individuals.     

Lessons for future research: two experiments failed to reproduce a relationship between achievement motivation and autobiographical memory distortion

ABSTRACT

Previous research (Sharman & Calacouris, 2010. Motivated imagination inflation: Implicit and explicit motives predict imagination inflation for achievement and affiliation events. Experimental Psychology, 57, 77–82) found that participants’ achievement-motivation was associated with the inflation of memory and confidence for unlikely achievement-related events in childhood. Similarly, other research has shown correlations between achievement motivation and grade inflation. In the current studies, we experimentally investigate the effect of false feedback and achievement-motivation on memory distortion for an unlikely childhood event (e.g. inventing an important device). In Experiment 1, we found that false feedback did have an effect, but contrary to previous research, self-reported achievement-motivation was not a statistically significant correlate of memory distortion. In Experiment 2, we again found a main effect for false feedback, no main effect of motivation, and an interaction. Both Experiments did not find, as earlier research had, a significant relationship between achievement-motivation and achievement-related memory distortion. We suggest others use different methods to ours when attempting to demonstrate a causal relationship between motivation and false memories.     

Book reviews

Books reviewed:
Dale Mathers, An Introduction to Meaning and Purpose in Analytical Psychology
Jane Cabot Reid (ed. & narrator), Jung, My Mother, and I: The Analytic Diaries of Catharine Rush Cabot
Heather Formaini (compiler), Landmarks. Papers by Jungian Analysts from Australia and New Zealand
Neil Russack, Animal Guides in Life, Myth and Dreams: An Analyst's Notebook
Rose–Emily Rothenberg, The Jewel in the Wound
Judith Edwards (ed.), Being Alive, Building on the Work of Anne Alvarez     

A Thurstonian Analysis of Preference Change

This paper presents a Thurstonian model for the analysis of preference change. Preferences are expressed in the form of rankings, possibly with ties. A vector-autoregression framework is used to investigate relationships between past and current rankings. It is shown that this approach yields a parsimonious and easily interpretable representation of individual preference differences in time-dependent ranking data. A detailed analysis of the 1992 National Election Study illustrates the proposed approach.     

From Noosphere to Theosphere: Cyclotrons, Cyberspace, and Teilhard's Vision of Cosmic Love

Two theme–setting quotations introduce this essay—that of Yeats's falcon, deaf to the falconer's call, adrift in space above the blood–dimmed tide, counterpoised to Pierre Teilhard de Chardin's call to abandon old nationalistic prejudices and build the earth. With primary references to the thought of Teilhard, along with, among others, to Ewert Cousins, Andrew M. Greeley, Karl Jaspers, Marshall McLuhan, Ilya Prigogine, Karl Rahner, Leonard Swidler, David Tracy, and Alfred North Whitehead, I argue that the most crucial intellectual paradigm shift of the twenty–first century will challenge humanity to take the turn from uncritical attachment to rigid absolutism or atomistic fragmentation toward a sense of open–ended, off–centered centeredness and fluid connections—from a static to a dynamic model of reality. Central to my argument is the Teilhardian reinterpretation of the Christian metaphors of creation, fall, incarnation, salvation, and the eschaton in the evolutionary terms of the emergence of cosmic consciousness from the chrysalis of the world of the past—from chaos to order, from biosphere via noosphere to theosphere. Facilitated by the exponential growth of populations, collaborative research, science, technology, and global communication (most dramatically manifested by the Internet), this emergent understanding of what it means to be human can, first, foster the awareness that in humanity evolution has become conscious of itself, and then, gradually, precipitate the formation of “the global village” (the mystical body of Christ), as respectful dialogue replaces diatribe and the dualistic pugilism of Samuel Huntington's “Clash of Civilizations” is gradually transformed into a nonadversarial mentality that values shared humanity and a common purpose. Thus, eons hence, empowered by love–energy, the transmutation of the human into the ultra–human can take the ultimate quantum leap into a yet higher dimension where spirit/energy is no longer in need of flesh/mass, and Earth can be safely left behind.     

God and Evolutionary Evil: Theodicy in the Light of Darwinism

Pain, suffering, death, and extinction have been intrinsic to the process of evolution by natural selection. This leads to a real problem of evolutionary theodicy, little addressed up to now in Christian theologies of creation. The problem has ontological, teleological, and soteriological aspects. The recent literature contains efforts to dismiss, disregard, or reframe the problem. The radical proposal that God has no long–term goals for creation, but merely keeps company with its unfolding, is one way forward. An alternative strategy to tackle the problem of evolutionary theodicy is outlined, with an implication for environmental ethics and suggestions for further work.     

培训迁移效果影响因素的初步研究

本研究通过访谈、问卷调查和现场研究等多种方法,考察了中学教师在接受一种新的教学方法培训后。组织气氛和个人特征对其迁移行为的影响。如果发现：(1)受训者对迁移气氛的知觉直接影响迁移行为发生的次数。(2)受训者对训练内容实用性的看法是影响迁移行为发生的重要环境因素,而受训者对训练内容实用性的看法会受到零反馈、自己的灵活性和自我效能的影响。(3)领导有无反馈、时间支持和同事支持等因素是区分培训迁移气氛类型的关键指标。     

Is how it is said important? The association between quality of therapist interventions and client processing

This study examined the association between the quality of therapist interventions and client in‐session processing using the York Therapist Process Measure (YTPM; Toukmanian and Armstrong, 1998). The instrument's three dimensions — attunement, tentativeness and meaning exploration — were tested separately for their impact on clients' manner of processing and depth of experiencing. For each of the 20 mild‐moderately depressed clients, treated in short‐term experiential therapy, a high and a low client‐process segment was isolated from a session that was judged by an experienced therapist to manifest the greatest amount of “good therapy moments”. Therapist interventions within these segments were then rated on the YTPM. Results revealed significant differences in the quality of therapist interventions between high and low segments. Attunement and tentativeness were associated significantly with greater complexity in manner of processing, and meaning exploration with greater depth in experiencing. The implications of these findings for psychotherapy research and practice are discussed.