The Hebb repetition effect as a laboratory analogue of novel word learning

The present study tests the hypothesis that a common ordering mechanism underlies both short-term serial recall of verbal materials and the acquisition of novel long-term lexical representations, using the Hebb repetition effect. In the first experiment, participants recalled visually presented nonsense syllables following a typical Hebb effect learning protocol. Replicating the Hebb repetition effect, we observed improved recall for repeated sequences of syllables. In the second experiment, the same participants performed an auditory lexical decision task, which included nonwords that were constructed from the syllables used in the first experiment. We observed inhibited rejection of nonwords that were composed of the repeated Hebb sequences, compared to nonwords that were built from nonrepeated filler sequences. This suggests that a long-term phonological lexical representation developed during Hebb learning. Accordingly, the relation between immediate serial recall and word learning is made explicit by arguing that the Hebb repetition effect is a laboratory analogue of naturalistic vocabulary acquisition.     

Reverberant auditory environments: the effects of multiple echoes on distraction by ‘irrelevant’ speech

Two experiments examine the effect on an immediate recall test of simulating a reverberant auditory environment in which auditory distracters in the form of speech are played to the participants (the ‘irrelevant sound effect’). An echo‐intensive environment simulated by the addition of reverberation to the speech reduced the extent of ‘changes in state’ in the irrelevant speech stream by smoothing the profile of the waveform. In both experiments, the reverberant auditory environment produced significantly smaller irrelevant sound distraction effects than an echo‐free environment. Results are interpreted in terms of changing‐state hypothesis, which states that acoustic content of irrelevant sound, rather than phonology or semantics, determines the extent of the irrelevant sound effect (ISE). Copyright © 2007 John Wiley & Sons, Ltd.     

Learning and memory deficits in mice lacking protease activated receptor-1

The roles of serine proteases and protease activated receptors have been extensively studied in coagulation, wound healing, inflammation, and neurodegeneration. More recently, serine proteases have been suggested to influence synaptic plasticity. In this context, we examined the role of protease activated receptor 1 (PAR1), which is activated following proteolytic cleavage by thrombin and plasmin, in emotionally motivated learning. We were particularly interested in PAR1 because its activation enhances the function of NMDA receptors, which are required for some forms of synaptic plasticity. We examined several baseline behavioral measures, including locomotor activity, expression of anxiety-like behavior, motor task acquisition, nociceptive responses, and startle responses in C57Bl/6 mice in which the PAR1 receptor has been genetically deleted. In addition, we evaluated learning and memory in these mice using two memory tasks, passive avoidance and cued fear-conditioning. Whereas locomotion, pain response, startle, and measures of baseline anxiety were largely unaffected by PAR1 removal, PAR1-/- animals showed significant deficits in a passive avoidance task and in cued fear conditioning. These data suggest that PAR1 may play an important role in emotionally motivated learning.     

The functional anatomy of inspection time: a pilot fMRI study

Seven healthy subjects underwent functional magnetic resonance imaging (fMRI) of the brain while performing an inspection time task. Employing a block-type design, the task had three difficulty levels: a control condition, an easy (200 ms stimulus duration), and a more difficult (40 ms) discrimination. Based on group results, there were widespread significant areas of difference in brain activation and deactivation when pairwise comparisons were conducted among the three task conditions. When the difficult condition was compared with the easy condition, there was relative activation in areas of the following brain regions: cingulate gyrus and some frontal and parietal lobe areas. Areas within the following regions showed relative deactivation (greater blood oxygenation level-dependent, BOLD, signal in the easy condition): frontal, temporal, and parietal lobe. There were overlaps between these areas and those found to be active while performing higher cognitive tasks in other functional brain imaging studies. These pilot data encourage future studies of the functional anatomy of inspection time and its relevance to psychometric intelligence.     

Reflectivity, Reflection, and Counter-Education

This article sets forward a new concept of reflection, to be contrasted with more usual reading of the concept for which we use the term `reflectivity'. The contrast is related to a distinction between normalizing education and counter-education. We claim that within the framework of normalizing education there is no room for reflection, but only for reflectivity. In contrast to reflectivity, reflection manifests a struggle of the subject against the effects of power which govern the constitution of her conceptual apparatus, her knowledge, her consciousness and her limitations and possibilities for successful functioning. Reflectivity re-presents the hegemonic realm of self-evidence and the productive violence of social and cultural order. Reflection, by contrast, aims to challenge the supposedly self-evident and the present order of things. Reflection aims at transcendence and represents a moral commitment in respect of the otherness of the Other, which power relations in every realm of self-evidence oblige us to neglect, to destroy or consume. Transcendence is a concrete utopia, and so is the subject in her nonrepressive communication with the Other: they are part and parcel of our present possibilities, sometimes in microscopic arenas, struggled for, and from time to time even realized.     

An Investigation of Sound-Symbolism in the Context of Tactile Feeling

Sound symbolism suggests a non-arbitrary relationship between speech sounds and the concepts to which those sounds refer (Hinton, Nichols, &; Ohala, 2006 Hinton, L., Nichols, J., &; Ohala, J. J. (2006). Sound symbolism. Cambridge, UK: Cambridge University Press. [Google Scholar]). Supporting evidence comes primarily from studies investigating how speech sounds relate to semantically compatible visual concepts. The present study therefore attempted to examine sound symbolism in the context of tactile perception. Contrary to the propositions of sound symbolism, participants in Experiment 1 did not consistently assign names with plosive consonant to objects with curved frames. Experiment 2, however, found that names with fricative consonants were more likely to be applied to materials with rough surfaces. The results suggested the existence of a direct relationship between speech sounds and their referent concepts that could be crucial in revealing the phenomenon of sound symbolism. A future study was also proposed to study the contributions of mouth shape and airflow to associations between speech sounds and tactile feelings. (161 words)     

Resistance to Pragmatic Tendencies in the World of Working in the Religious Finite Province of Meaning

This essay describes some of the basic pragmatic tendencies at work in the world of working and then shows how the finite provinces of meaning of theoretical contemplation and literature act against those pragmatic tendencies. This analysis prepares the way to see how the religious province of meaning in a similar but also distinctive way acts back against these pragmatic tendencies. These three finite provinces of meaning make it possible to see the world from another center of orientation than that of the ego agens and its proclivity to bring transcendences within reach, thereby freeing oneself to a degree from the fundamental anxiety and revealing the uniqueness of oneself and others, who are no longer subjected to working’s pragmatic imperatives.     

Teaching about Christianity: a configurative review of research in English schools

This article presents a systematic review of empirical research on teaching about Christianity in state schools in England between 1993 and 2013. First, I explain the background to this religion’s current place within English religious education. The value of a configurative review is set out, and inclusion criteria are outlined, leading to the selection of 58 publications. Then the article’s theoretical frame is explained, drawing on activity theory, and the analysis is set out under three broad organising principles: (1) Teachers’ professional and pedagogical intentions; (2) How teachers draw on different pedagogical strategies to enact these intentions, for example systematic or thematic approaches; and (3) How these intentions and strategies affect pupil learning, such as pupils’ conceptions of difficult topics. The implications for research in religious education are then drawn together, notably the need to consider the pedagogical issues for different religions individually.