Failures of explaining away and screening off in described versus experienced causal learning scenarios

Causal Bayes nets capture many aspects of causal thinking that set them apart from purely associative reasoning. However, some central properties of this normative theory routinely violated. In tasks requiring an understanding of explaining away and screening off, subjects often deviate from these principles and manifest the operation of an associative bias that we refer to as the rich-get-richer principle. This research focuses on these two failures comparing tasks in which causal scenarios are merely described (via verbal statements of the causal relations) versus experienced (via samples of data that manifest the intervariable correlations implied by the causal relations). Our key finding is that we obtained stronger deviations from normative predictions in the described conditions that highlight the instructed causal model compared to those that presented data. This counterintuitive finding indicate that a theory of causal reasoning and learning needs to integrate normative principles with biases people hold about causal relations.     

Dwelling in Possibility: Response to Willock and Cornell

This response to the commentaries by Drs. Willock and Cornell explores themes raised in their commentaries related to regression, containment, and unconscious processes in analyses that feature intergenerational trauma. In addition, this response seeks to elaborate on how a psychoanalyst and patient might respond clinically to the “errand” presented to them by previous generations that “haunt” the treatment as ghosts.     

Bridging the intention–behavior gap: Inducing implementation intentions through persuasive appeals

The potential of using implementation intentions—action plans that link a critical situational cue to a specific goal-directed behavior—to bridge the intention–behavior gap in consumer behavior has been limited by the practice of using explicit instructions to induce the construct. In two studies, we therefore tested the effectiveness of an indirect, persuasive strategy that benefits from the positive consequences of implementation intentions by ‘mimicking’ their underlying psychological processes. Experiment 1 showed that a strategy presenting vivid information on critical cues and appropriate behavioral responses affected mental imagery. Experiment 2 demonstrated that this strategy affected actual purchase behavior.     

The sound of spiritual care: music interventions in a palliative care setting

The article describes how music has been integrated into spiritual and supportive care for palliative care patients at Brantford General Hospital (Ontario). Numerous case examples illustrate how a song or piece of music can play a vital role in the spiritual dimension of end of life care. The article expands the concept of the "living human document" by positing that a life story has an accompanying soundtrack: a musical memory and sensorial attunement that can be energized when music is offered at the bedside. The writers suggest that music provides an alternate spiritual language for patients whether or not they have a religious affiliation.     

Continuous perception and graded categorization: electrophysiological evidence for a linear relationship between the acoustic signal and perceptual encoding of speech

Speech sounds are highly variable, yet listeners readily extract information from them and transform continuous acoustic signals into meaningful categories during language comprehension. A central question is whether perceptual encoding captures acoustic detail in a one-to-one fashion or whether it is affected by phonological categories. We addressed this question in an event-related potential (ERP) experiment in which listeners categorized spoken words that varied along a continuous acoustic dimension (voice-onset time, or VOT) in an auditory oddball task. We found that VOT effects were present through a late stage of perceptual processing (N1 component, ~100 ms poststimulus) and were independent of categorization. In addition, effects of within-category differences in VOT were present at a postperceptual categorization stage (P3 component, ~450 ms poststimulus). Thus, at perceptual levels, acoustic information is encoded continuously, independently of phonological information. Further, at phonological levels, fine-grained acoustic differences are preserved along with category information.     

Ceiling effects make Hughes and Nicholson’s data analyses and conclusions inconclusive

Hughes and Nicholson (2010) suggest that recognizing oneself is easier from face vs. voice stimuli, that a combined presentation of face and voice actually inhibits self-recognition relative to presentation of face or voice alone, that the left hemisphere is superior in self-recognition to the right hemisphere, and that recognizing self requires more effort than recognizing others. A re-examination of their method, data, and analyses unfortunately shows important ceiling effects that cast doubts on these conclusions.     

Ontological Proofs of Existence and Non-Existence

Caramuels’ proof of non-existence of God is compared with Gödel’s proof of existence.     

Pain, dissociation and subliminal self-representations

According to recent evidence, neurophysiological processes coupled to pain are closely related to the mechanisms of consciousness. This evidence is in accordance with findings that changes in states of consciousness during hypnosis or traumatic dissociation strongly affect conscious perception and experience of pain, and markedly influence brain functions. Past research indicates that painful experience may induce dissociated state and information about the experience may be stored or processed unconsciously. Reported findings suggest common neurophysiological mechanisms of pain and dissociation and point to a hypothesis of dissociation as a defense mechanism against psychological and physical pain that substantially influences functions of consciousness. The hypothesis is also supported by findings that information can be represented in the mind/brain without the subject's awareness. The findings of unconsciously present information suggest possible binding between conscious contents and self-functions that constitute self-representational dimensions of consciousness. The self-representation means that certain inner states of own body are interpreted as mental and somatic identity, while other bodily signals, currently not accessible to the dominant interpreter's access are dissociated and may be defined as subliminal self-representations. In conclusion, the neurophysiological aspects of consciousness and its integrative role in the therapy of painful traumatic memories are discussed.