Behavioral and electrophysiological evidence for the impact of regional variation on phoneme perception

This event-related potential (ERP) study examined the impact of phonological variation resulting from a vowel merger on phoneme perception. The perception of the /e/-/ε/ contrast which does not exist in Southern French-speaking regions, and which is in the process of merging in Northern French-speaking regions, was compared to the /ø/-/y/ contrast, which is stable in all French-speaking regions. French-speaking participants from Switzerland for whom the /e/-/ε/ contrast is preserved, but who are exposed to different regional variants, had to perform a same-different task. They first heard four phonemically identical but acoustically different syllables (e.g., /be/-/be/-/be/-/be/), and then heard the test syllable which was either phonemically identical to (/be/) or phonemically different from (/bε/) the preceding context stimuli. The results showed that the unstable /e/-/ε/ contrast only induced a mismatch negativity (MMN), whereas the /ø/-/y/ contrast elicited both a MMN and electrophysiological differences on the P200. These findings were in line with the behavioral results in which responses were slower and more error-prone in the /e/-/ε/ deviant condition than in the /ø/-/y/ deviant condition. Together these findings suggest that the regional variability in the speech input to which listeners are exposed affects the perception of speech sounds in their own accent.     

Joined-up Thomism and the 'Second Quest' for Trinitarian Renewal

Book reviewed:
Scripture and Metaphysics: Aquinas and the Renewal of Trinitarian Theology , Matthew Levering, Blackwell 2004 (Hb 1-4051-1733-8; Pb 1-4051-1734-6), pp. x + 254, Hb £55/$61.95, Pb £19.99/$32.95     

Integrating computation into the mechanistic hierarchy in the cognitive and neural sciences

It is generally accepted that, in the cognitive and neural sciences, there are both computational and mechanistic explanations. We ask how computational explanations can integrate into the mechanistic hierarchy. The problem stems from the fact that implementation and mechanistic relations have different forms. The implementation relation, from the states of an abstract computational system (e.g., an automaton) to the physical, implementing states is a homomorphism mapping relation. The mechanistic relation, however, is that of part/whole; the explaining features in a mechanistic explanation are the components of the explanandum phenomenon and their causal organization. Moreover, each component in one level of mechanism is constituted and explained by components of an underlying level of mechanism. Hence, it seems, computational variables and functions cannot be mechanistically explained by the medium-dependent states and properties that implement them. How then, do the computational and the implementational integrate to create the mechanistic hierarchy? After explicating the general problem (Sect. 2), we further demonstrate it through a concrete example, of reinforcement learning, in the cognitive and neural sciences (Sects. 3 and 4). We then examine two possible solutions (Sect. 5). On one solution, the mechanistic hierarchy embeds at the same levels computational and implementational properties. This picture fits with the view that computational explanations are mechanistic sketches. On the other solution, there are two separate hierarchies, one computational and another implementational, which are related by the implementation relation. This picture fits with the view that computational explanations are functional and autonomous explanations. It is less clear how these solutions fit with the view that computational explanations are full-fledged mechanistic explanations. Finally, we argue that both pictures are consistent with the reinforcement learning example, but that scientific practice does not align with the view that computational models are merely mechanistic sketches (Sect. 6).

     

Spatial Stroop interference occurs in the processing of radicals of ideogrammic compounds

In this study, we investigated whether the meanings of radicals are involved in reading ideogrammic compounds in a spatial Stroop task. We found spatial Stroop effects of similar size for the simple characters (“up”) and (“down”) and for the complex characters (“nervous”) and (“nervous”), which are ideogrammic compounds containing a radical or , in Experiments 1 and 2. In Experiment 3, the spatial Stroop effects were also similar for the simple characters (“east”) and (“west”) and for the complex characters (“state”) and (“spray”), which contain and as radicals. This outcome occurred regardless of whether the task was to identify the character (Exps. 1 and 3) or its location (Exp. 2). Thus, the spatial Stroop effect emerges in the processing of radicals just as it does for processing simple characters. This finding suggests that when reading ideogrammic compounds, (a) their radicals’ meanings can be processed and (b) ideogrammic compounds have little or no influence on their radicals’ semantic processing.     

The Suspended Middle: Henri de Lubac and the Debate concerning the Supernatural – John Milbank

Book reviewed:
The Suspended Middle: Henri de Lubac and the Debate concerning the Supernatural , John Milbank, SCM/Eerdmans 2005 (0-334-04045-0), x + 117 pp., pb £16.99/$20.00     

Response to Umbers: An Instability of the Duty and Right to Vote

Res Publica - Lachlan Umbers (Res Publica. https://doi.org/10.1007/s11158-018-9395-4, 2018a) defends democracy against Jason’s Brennan’s (Philos Q 61:700–724, 2011) competence...     

Long-term enrichment enhances the cognitive behavior of the aging neurogranin null mice without affecting their hippocampal LTP

Neurogranin (Ng), a PKC substrate, is abundantly expressed in brain regions important for cognitive functions. Deletion of Ng caused severe deficits in spatial learning and LTP in the hippocampal CA1 region of mice. These Ng-/- mice also exhibit deficits in the amplification of their hippocampal signaling pathways critical for learning and memory. A short-term exposure to an enriched environment failed to improve their behavioral performances. Here, we showed that a long-term enrichment protocol for the aging mice was beneficial to the Ng-/- as well as Ng+/+ and Ng+/- mice in preventing age-related cognitive decline. Enrichment also caused an increase in the hippocampal CREB level of all three genotypes and Ng level of Ng+/+ and Ng+/- mice, but not that of alphaCaMKII or ERK. Interestingly, hippocampal slices of these enriched aging Ng-/- mice, unlike those of Ng+/+ and Ng+/- mice, did not show enhancement in the high frequency stimulation (HFS)-induced LTP in the CA1 region. It appears that the learning and memory processes in these enriched aging Ng-/- mice do not correlate with the HFS-induced LTP, which is facilitated by Ng. These results demonstrated that long-term enrichment for the aging Ng-/- mice may improve their cognitive function through an Ng-independent plasticity pathway.     

A challenge for Super-Humeanism: the problem of immanent comparisons

Synthese - According to the doctrine of Super-Humeanism (Esfeld in Synthese. https://doi.org/10.1007/s11229-017-1426-8 , 2017), the world’s mosaic consists only of permanent matter points and...     

Getting rid of blinkers: the case of mirror self-recognition in horses (Equus caballus)

Animal Cognition - The commentary by Gallup and Anderson (Anim Cogn https://doi.org/10.1007/s10071-021-01538-9 , 2021) on the original article by Baragli, Scopa, Maglieri, and Palagi (Anim Cogn...     

Altering the rhythm of target and background talkers differentially affects speech understanding

Three experiments investigated listeners’ ability to use speech rhythm to attend selectively to a single target talker presented in multi-talker babble (Experiments 1 and 2) and in speech-shaped noise (Experiment 3). Participants listened to spoken sentences of the form “Ready [Call sign] go to [Color] [Number] now” and reported the Color and Number spoken by a target talker (cued by the Call sign “Baron”). Experiment 1 altered the natural rhythm of the target talker and background talkers for two-talker and six-talker backgrounds. Experiment 2 considered parametric rhythm alterations over a wider range, altering the rhythm of either the target or the background talkers. Experiments 1 and 2 revealed that altering the rhythm of the target talker, while keeping the rhythm of the background intact, reduced listeners’ ability to report the Color and Number spoken by the target talker. Conversely, altering the rhythm of the background talkers, while keeping the target rhythm intact, improved listeners ability to report the Color and Number spoken by the target talker. Experiment 3, which embedded the target talker in speech-shaped noise rather than multi-talker babble, similarly reduced recognition of the target sentence with increased alteration of the target rhythm. This pattern of results favors a dynamic-attending theory-based selective-entrainment hypothesis over a disparity-based segregation hypothesis and an increased salience hypothesis.

     

Interpreting Christian History: The Challenge of the Churches' Past – Euan Cameron

Book reviewed:
Interpreting Christian History: The Challenge of the Churches' Past , Euan Cameron, Blackwell Publishing 2005 (0-631-21523-9), xii + 292 pp., hb/pb £50.00/£15.99     

Rectifying the Mischaracterization of Logic by Mental Model Theorists

Khemlani et al. (2018) mischaracterize logic in the course of seeking to show that mental model theory (MMT) can accommodate a form of inference (, let us label it) they find in a high percentage of their subjects. We reveal their mischaracterization and, in so doing, lay a landscape for future modeling by cognitive scientists who may wonder whether human reasoning is consistent with, or perhaps even capturable by, reasoning in a logic or family thereof. Along the way, we note that the properties touted by Khemlani et al. as innovative aspects of MMT-based modeling (e.g., nonmonotonicity) have for decades been, in logic, acknowledged and rigorously specified by families of (implemented) logics. Khemlani et al. (2018) further declare that is “invalid in any modal logic.” We demonstrate this to be false by our introduction (Appendix A) of a new propositional modal logic (within a family of such logics) in which is provably valid, and by the implementation of this logic. A second appendix, B, partially answers the two-part question, “What is a formal logic, and what is it for one to capture empirical phenomena?”     

Truth and Holiness: The Way of the Cross

The Unity We Have and the Unity We Seek: Ecumenical Prospects for the Third Millennium , Jeremy Morris and Nicholas Sagovsky (eds), T. & T. Clark 2003, A Continuum Imprint (Hb 0-567-8907-X, Pb 0-567-08879-0), pp. xix + 244, Pb £14.99
In One Body Through the Cross: The Princeton Proposal for Christian Unity , Carl E. Braaten and Robert W. Jenson (eds), Eerdmans 2003 (0-8028-2298-3), pp. 62, Pb £7.99/$10     

Reducing the effects of the stereotype threat that girls perform less well than boys in mathematics: the efficacy of a mixed debate in a real classroom situation

The present research aims at testing the effects of the mixed debate in a classroom situation on reducing the stereotype threat according to which girls perform less well than boys in mathematics. Our work is based on studies conducted on stereotype threat (Steele and Aronson in J Person Soc Psychol 69:797–811. https://doi.org/10.1037//0022-3514.69.5.797, 1995), as well as those aiming to reduce the impact of stereotype threat on stereotyped populations (Huguet and Régner in J Educ Psychol 99(3):545–560. https://doi.org/10.1037/0022-0663.99.3.545, 2007; Marx and Roman in Personal Soc Psychol Bull 28:1185–1197. https://doi.org/10.1177/01461672022812004, 2002; Spencer et al. in J Exp Soc Psychol 35:4–28. https://doi.org/10.1006/jesp.1998.1373, 1999). We will more particularly study Smith and Postmes' (Br J Soc Psychol 50(1):74–98. https://doi.org/10.1348/014466610X500340, 2010) work on small group discussions used to reduce the influence of the threat. Results indicate that having a debate as such reduces the impact of the stereotype threat in girls. Possible interpretations of the results and future research perspectives will be put forward.

     

After the Spirit: A Constructive Pneumatology from Resources outside the Modern West – Eugene F. Rogers

Book reviewed:
After the Spirit: A Constructive Pneumatology from Resources outside the Modern West , Eugene F. Rogers Jr, Eerdmans Press 2005 (0-8028-2891-4), xi + 251 pp., pb $22.00/£12.99     

The Faith of the Outsider: Exclusion and Inclusion in the Biblical Story – Frank Anthony Spina

Book reviewed:
The Faith of the Outsider: Exclusion and Inclusion in the Biblical Story , Frank Anthony Spina, Eerdmans Publishing Company 2005 (0-8028-2864-7), x + 206 pp., pb £9.99/$16.00     

Feeling as the origin of value in Scheler and Mencius

Max Scheler (1874–1928) and Mencius (孟子, 372–289 BC) both take feeling to be the origin of value and could therefore be considered to be proponents of axiological sentimentalism. Despite the great spatial and temporal distance between them, there are striking similarities between the theories of value they developed. It should be noted, however, that there are also some differences between them that are mainly derived from some difficulties with their theories of value. These difficulties should be removed so that a better theory of value could be developed. It is accordingly the aim of this paper to promote a phenomenological dialogue between Scheler and Mencius that could lead to such a better theory. In Sects. 1, 2, I will first delineate Scheler’s theory of value and feeling, then that of Mencius. In Sect. 3, I will point out some difficulties with the two theories and promote a dialogue between them that would improve each theory. In Sect. 4, I will conclude with some remarks concerning the future task of the phenomenological dialogue between Scheler and Mencius.

     

Modification of the rat's acoustic startle response by antecedent visual stimulation.

Male hooded and albino rats were exposed to a light flash followed at various temporal intervals by a startle-eliciting 117 db. (re 20 muN/m2) burst of white noise. The visual stimulus engendered startle response inhibition (maximally when the lead time was 64-250 msec) as well as startle response latency reduction (maximally when the lead time was 2-8 msec). The temporal functions for the effects of visual stimuli paralleled those previously reported for startle modification by acoustic events. Further study revealed that, given optimal lead times, inhibition is produced reliably by weaker visual stimuli (3 X 10-6 cd-sec/cm2) than latency reduction (3 X 10-4 cd-sec/cm2). This differential sensitivity to visual stimuli is also analogous to previously reported findings for events in the acoustic environment. It reveals that the neural mechanisms that mediate latency reduction and inhibition can be engaged by either acoustic or visual stimulation.     

Orphanin FQ/nociceptin interacts with the basolateral amygdala noradrenergic system in memory consolidation

Extensive evidence indicates that the basolateral complex of the amygdala (BLA) mediates hormonal and neurotransmitter effects on the consolidation of emotionally influenced memory and that such modulatory influences involve noradrenergic activation of the BLA. As the BLA also expresses a high density of receptors for orphanin FQ/nociceptin (OFQ/N), an opioid-like peptide with anxiolytic and amnestic properties, the present experiments investigated whether the BLA is involved in mediating OFQ/N effects on memory consolidation and whether such effects require noradrenergic activity. OFQ/N (0.01-100 pmol in 0.2 microL) administered bilaterally into the BLA of male Sprague-Dawley rats immediately after aversively motivated inhibitory avoidance training induced dose-dependent impairment on a 48-h retention trial. The beta(1)-adrenoceptor antagonist atenolol (2.0 nmol) administered concurrently into the BLA potentiated the dose-response effects of OFQ/N. In contrast, immediate post-training infusions of the peptidergic OFQ/N receptor antagonist [Nphe(1)]nociceptin(1-13)NH(2) (1-100 pmol in 0.2 microL) into the BLA enhanced 48-h retention of inhibitory avoidance training, an effect that was blocked by coadministration of atenolol. Delayed infusions of OFQ/N or [Nphe(1)]nociceptin(1-13)NH(2) into the BLA administered either 6 or 3 h after training, respectively, or immediate post-training infusions of OFQ/N into the adjacent central amygdala did not significantly alter retention performance. These findings indicate that endogenously released OFQ/N interacts with noradrenergic activity within the BLA in modulating memory consolidation.     

Role of L-type Ca2+ channel isoforms in the extinction of conditioned fear

Dihydropyridine (DHP) L-type Ca(2+) channel (LTCC) antagonists, such as nifedipine, have been reported to impair the extinction of conditioned fear without interfering with its acquisition. Identification of the LTCC isoforms mediating this DHP effect is an essential basis to reveal their role as potential drug targets for the treatment of specific anxiety disorders. Ca(V)1.2 and Ca(V)1.3 are the predominant LTCCs in the mammalian brain. However, since no isoform-selective DHP blockers are available, their individual contribution to fear memory extinction is unknown. We used a novel mouse model expressing DHP-insensitive Ca(V)1.2 LTCCs (Ca(V)1.2DHP(-/-) mice) to address this question. In line with previous studies, wild-type (WT) mice treated with systemic nifedipine displayed markedly impaired fear extinction. This DHP effect was completely abolished in Ca(V)1.2DHP(-/-) mice, indicating that it is mediated by Ca(V)1.2, but not by Ca(V)1.3 LTCCs. Supporting this conclusion, Ca(V)1.3-deficient mice (Ca(V)1.3(-/-)) showed extinction identical to the respective WT mice. The inhibition of fear extinction was not observed after intracerebroventricular (i.c.v.) application of different doses of nifedipine, suggesting that this effect is secondary to inhibition of peripheral Ca(V)1.2 channels. The LTCC activator BayK, which lacks neurotoxic effects in Ca(V)1.2DHP(-/-) mice, did not influence the extinction time course. In summary, we demonstrate that LTCC signaling through the Ca(V)1.2 isoform of LTCCs interferes with fear memory extinction, presumably via a peripherally mediated mechanism. Activation of other LTCC isoforms (predominantly Ca(V)1.3) is not sufficient to accelerate extinction of conditioned fear in mice.