Conditioning, expectancy, and the placebo effect: comment on Stewart-Williams and Podd (2004)

Classical conditioning is included as a component in the response expectancy model of placebo responding. Though introspectable when attention is drawn to them, expectancies need not be in awareness while guiding behavior. Most placebo effects are linked to expectancies, and classical conditioning is one factor (but not the only factor) by which these expectancies can be produced and altered. Conditioned placebo effects without expectancies exist but are relatively rare in humans. The adaptive advantage of cognition is increased response flexibility. For it to convey that benefit, however, it must be capable of overriding the influence of simpler automatic processes. Thus, the higher up the phylogenetic scale, the smaller the role of nonconscious conditioning processes and the larger the role of cognition.     

Empirically supported psychotherapies: comment on Westen, Novotny, and Thompson-Brenner (2004)

D. Westen, C. M. Novotny, and H. Thompson-Brenner (2004; see record 2004-15935-005) suggested that efforts to identify empirically supported treatments are misguided because they are based on assumptions that are not appropriate for some types of treatment and patients. The authors of this comment argue that Westen and colleagues are simply incorrect when they assert that empirically supported treatments require that psychopathology must be highly malleable, that treatments must be brief, or that the samples studied are unrepresentative of the kinds of patients typically encountered in clinical practice--comorbidity is common in many clinical trials. Randomized controlled trials remain the most powerful way to test notions of causal agency.     

Psychotherapy process: the missing link: comment on Westen, Novotny, and Thompson-Brenner (2004)

In this comment, J. S. Ablon and C. Marci argue that focusing on the empirical validation of manualized treatment packages misses important information about what is efficacious about a given treatment. Psychotherapy process has demonstrated that treatments may promote change in ways other than their underlying theories claim. Manualized therapies may appear distinct despite important similarities in dyadic interaction. These functional similarities in the emergent transactional process between therapist and patient may help explain the difficulty demonstrating differential outcomes across brands of brief therapy. Rather than focus on treatment packages targeting patient symptomatology, the authors recommend a shift in focus to the empirical validation of change processes coconstructed by therapist and patient in naturalistic settings.     

Jousting with straw men: comment on Westen, Novotny, and Thompson-Brenner (2004)

Empirically supported treatments (ESTs) do not cure every patient, and the randomized trial is not a flawless methodology. Upon these often-noted and widely accepted points, D. Westen, C. M. Novotny, and H. Thompson-Brenner (2004a; see record 2004-15935-005) built a critique of ESTs and EST research. However, important work developing effective, clinically relevant treatments for serious problems was omitted from the Westen et al. (2004a) review. Little documentation was offered for the purported "assumptions" of EST methodology that Westen et al. (2004a) criticized; and different review standards were applied to studies supporting versus those disagreeing with Westen et al.'s (2004a) views. Finally, the correlational research designs proposed as a remedy by Westen et al. (2004a) have far more serious weaknesses than randomized trials, thoughtfully applied to real-world clinical care.     

Cognitive bias via the Internet: a comparison of Web-based and standard emotional Stroop tasks in social phobia

There is accumulating evidence to suggest that social phobia is associated with attentional bias for words related to social threat. Information processing in individuals with social phobia (n = 87) was investigated in the present study using 2 versions of the emotional Stroop task. Results from a standard emotional Stroop task indicated delayed colour naming of socially threatening words relative to neutral words, in line with previous research, whereas results from a Web-based emotional Stroop task indicated a facilitation effect, with faster manual indication of colour choice for socially threatening words than for neutral words. Possible explanations for these contrasting findings and issues for further research are discussed.     

Decision-making models of remember-know judgments: comment on Rotello, Macmillan, and Reeder (2004)

The sum-difference theory of remembering and knowing (STREAK) provides a sophisticated account of many interactions in the remember-know (R-K) area (C. M. Rotello, N. A. Macmillan, & J. A. Reeder, 2004). It assumes 2 orthogonal strength dimensions and oblique criterion planes. Another dual-process model (J. T. Wixted & V. Stretch, 2004) with one decision axis has also been applied to R-K judgments with considerable success and provides new insights into the processes involved. An analysis of the 4 major R-K interactions can also be explained by a simpler one-dimensional signal detection theory (J. C. Dunn, 2004a). However these models do not make contact with standard work on recognition memory, so their scope is limited. To bridge this gap, a global-matching model (a theory of distributed associative memory [TODAM]) for R-K judgments is proposed. This model can produce good fits to the data, and there are established experimental manipulations with which to test it. It provides further support for the idea that R judgments are based on associative information, whereas K judgments are based on item information.     

Relations among categorization, induction, recognition, and similarity: comment on Sloutsky and Fisher (2004)

V. M. Sloutsky and A. V. Fisher reported 5 experiments documenting relations among categorization, induction, recognition, and similarity in children as well as adults and proposed a new model of induction, SINC (similarity, induction, categorization). Those authors concluded that induction depends on perceptual similarity rather than conceptual knowledge. Despite the useful contributions of this work, there are some important limitations. The experimental designs examined a limited range of phenomena that are not the most revealing about the use of nonperceptual information. The main results involved a simple triad task, for which the SINC model's predictions are equivalent to the predictions of previous models of inductive reasoning. It is also unclear whether the SINC model can account for the observed relations between similarity and recognition. Implications for future work on induction and related cognitive activities are discussed.     

Active masks and active inhibition: a comment on Lleras and Enns (2004) and on Verleger, Jaskowski, Aydemir, van der Lubbe, and Groen (2004)

Verleger, Jaskowski, Aydemir, van der Lubbe, and Groen and Lleras and Enns have argued that negative compatibility effects (NCEs) obtained with masked primes do not reflect self-inhibition processes in motor control. Instead, NCEs are assumed to reflect activation of the response opposite to the prime, triggered by the presence of prime/targetlike features in the mask. Thus, no NCEs should be elicited when masks do not contain such task-relevant features. In Experiments 1 and 3, the authors demonstrate that NCEs can be obtained when masks contain only irrelevant features. Experiment 2 demonstrates that positive compatibility effects (PCEs) will occur with such masks when masked primes are presented peripherally. These results are inconsistent with the mask-induced activation accounts but are in line with the self-inhibition hypothesis of the NCE. Although perceptual interactions and mask-induced motor activations may contribute to NCEs under certain conditions, they cannot provide a full explanation for these effects.     

Two versions of the negative compatibility effect: comment on Lleras and Enns (2004)

A. Lleras and J. T. Enns demonstrated a negative influence of a masked arrow that is attributable to the perceptual interaction between the arrow and the mask when these have properties in common (in this case diagonal lines). Although the present analysis is in agreement that this type of perceptual interaction can occur, it also demonstrates that this is not the only way a masked arrow can produce a negative influence. The most critical finding is that a negative influence occurred even when the arrow and mask did not share the common properties that would be needed for this type of perceptual interaction. This illustrates the version of the negative compatibility effect that was studied by S. T. Klapp and L. B. Hinkley (2002) and others.     

Some general laws of human emotion: Interrelationships between intensities of desire, expectation, and emotional feeling

Two experiments were performed to determine how desires and expectations interact to influence the intensities of emotional feelings. The first experiment required participants to respond to their imagined intensities of desire and expectation in two hypothetical situations, (1) anticipating different probabilities of receiving money (2) anticipating the possibility of different durations of continuous rain combined with different probabilities of rain occurring. Participants responded by producing line lengths to desire and feeling, a form of cross-modality matching. Feeling intensity but not desire intensity increased as a negatively accelerating power function of expectation for the positive approach goal of receiving money (F =KE^0.5) and both desire and feeling were negatively accelerating power functions of the hypothetical amount of money presented (F=K$⁴; D=K$⁴). Feeling intensity but not desire intensity increased as a positively accelerating function of expectation for the negative avoidance goal of anticipating different amounts of rain (F=KE^1.9) and both desire and feeling were negatively accelerating functions of amount of rain (F=KR^0.9; D=KR_0.9). The second experiment required participants to make visual analogue scale responses to desire, expectation, and emotional feeling intensities in ordinary life situations. Similar to Experiment 1, feeling intensity but not desire intensity increased as a negatively accelerating function of expectation for positive approach goals (F=KE^0.6) and as a positively accelerating function of expectation for negative avoidance goals (F=KE^2.0). Functional interrelationships found in both experiments were fit to the general equations F=K₁D+K₂DE^0.5 for positive approach goals and F=K₁D+K₂DE^2.0 for negative avoidance goals. Both equations have the same general form and indicate that desire and expectation have a multiplicative interaction with respect to their influence on emotional feeling intensity. Both functions     

On the need for a new psychotherapy research paradigm: comment on Westen, Novotny, and Thompson-Brenner (2004)

Basic, process, and outcome research have the potential to inform clinical practice. However, as D. Westen, C. M. Novotny, and H. Thompson-Brenner observed in their timely analysis, the current dominant paradigm for psychotherapy outcome research--the randomized clinical trial--is not fulfilling this potential. The field's reliance on the medical model and manual-based interventions has contributed to the gap between research and clinical practice. Greater collaboration between practitioners and researchers, a focus on therapeutic principles rather than treatment packages, and systemic changes in how scholarly efforts are reinforced are needed to shift the current research paradigm.     

Clarifying the nature of the distinctiveness by domain interaction in conceptual structure: comment on Cree, McNorgan, and McRae (2006)

The conceptual structure account of semantic memory (CSA; L. K. Tyler & H. E. Moss, 2001) claims that feature correlation (the degree to which features co-occur) and feature distinctiveness (the number of concepts in which a feature occurs) interact with domains of knowledge (e.g., living vs. nonliving) such that the distinctive features of nonliving things are more highly correlated than the distinctive features of living things. Evidence for (B. Randall, H. E. Moss, J. M. Rodd, M. Greer, & L. K. Tyler, 2004) and against this claim (G. S. Cree, C. McNorgan, & K. McRae, 2006) has been reported. This comment outlines the CSA, discusses Cree et al.'s (2006) critiques of the Randall et al. (2004) experiments and the CSA, and reports new analyses of property norm and behavioral data, which replicate the results reported by Randall et al. (2004).     

A healthy dose of criticism for randomized trials: comment on Westen, Novotny, and Thompson-Brenner (2004)

D. Westen, C. M. Novotny, and H. Thompson-Brenner identified many important concerns in their critique of methods typically used in randomized controlled trials (RCTs) of psychotherapy outcome and by extension in methods of identifying empirically supported therapies (ESTs). Some of the concerns would be mitigated if empirical support of treatments were assessed multidimensionally (separating favorability of results from definitiveness of research methods used) and continuously rather than categorically. Other concerns can and should be addressed within the existing framework of RCTs and ESTs, including consideration of inclusion criteria other than a single Axis I condition, experimental evaluation of some of the procedural assumptions codified in psychotherapy manuals, and far more detailed reporting of RCT results.     

Toward assessing attachment on an emotional security continuum: comment on Fraley and Spieker (2003)

The article by R.C. Fraley and S.J. Spieker (2003) serves to remind the discipline of the possible virtues of assessing attachments on continua, a practice that has a long history in attachment research. In this commentary, the author further develops the potential contributions of this approach to assessment and advocates renewed efforts toward assessment of attachments on a single continuum of emotional security. The author contends that theory is essential as a guide for new directions in attachment assessment and that Bowlby's notions of secure base and emotional security provide the needed conceptual foundation for these further developments (E. Waters & E. M. Cummings, 2000). Moreover, challenges that have been made historically to the scoring of attachment on a security continuum are addressed. New means for continuously scoring attachment are advocated as a supplement to the primary direction of categorically assessing attachment patterns.     

How to hit Scylla without avoiding Charybdis: comment on Perruchet, Tyler, Galland, and Peereman (2004)

M. Pe?a, L. L. Bonatti, M. Nespor, and J. Mehler argued that humans compute nonadjacent statistical relations among syllables in a continuous artificial speech stream to extract words, but they use other computations to determine the structural properties of words. Instead, when participants are familiarized with a segmented stream, structural generalizations about words are quickly established. P. Perruchet, M. D. Tyler, N. Galland, and R. Peereman criticized M. Pe?a et al.'s work and dismissed their results. In this article, the authors show that P. Perruchet et al.'s criticisms are groundless.     

Shape parameters explain data from spatial transformations: comment on Pearce et al. (2004) and Tommasi & Polli (2004)

In 2 recent studies on rats (J. M. Pearce, M. A. Good, P. M. Jones, & A. McGregor, see record 2004-12429-006) and chicks (L. Tommasi & C. Polli, see record 2004-15642-007), the animals were trained to search in 1 corner of a rectilinear space. When tested in transformed spaces of different shapes, the animals still showed systematic choices. Both articles rejected the global matching of shape in favor of local matching processes. The present authors show that although matching by shape congruence is unlikely, matching by the shape parameter of the 1st principal axis can explain all the data. Other shape parameters, such as symmetry axes, may do even better. Animals are likely to use some global matching to constrain and guide the use of local cues; such use keeps local matching processes from exploding in complexity.