Abstract The literatures that touch on synaesthesias-scientific, art-historical, literary, phenomenological, ethnographic, psychodelic-vary widely in their definitions, their interpretations, and their degree of comfort with the first-person, subjective nature of experiential reports. The significances given to synaesthetic experiences are similarly wide-ranging. This paper explores the...
Previous research found that mixed handers (i.e., those that are more ambidextrous) were more likely than strong handers to update their beliefs (Niebauer, Aselage, & Schutte, 2002). It was assumed that this was due to greater degrees of communication between the two cerebral hemispheres in mixed handers. Niebauer and Garvey (2004) made connections between this model of updating beliefs and...
Dissociative style is mostly studied as a risk factor for dissociative pathology, but it may also reflect a fundamental characteristic of healthy information processing. Due to the close link between attention and working memory and the previous finding of enhanced attentional abilities with a high dissociative style, a positive relationship was also expected between dissociative style and...
The article examines individuals' attempts to generate meaning following their experiences with psychosis. The inquiry is based on a person-centered ethnographic study of a Danish mental health community program for early intervention in schizophrenia and involves longitudinal interviews with 15 of its participants. The article takes an existential anthropological perspective emphasizing agency...
A. Revonsuo (2000b) proposed an evolutionary theory of dreaming, stating it is a threat simulation mechanism that allowed early humans to rehearse threat perception and avoidance without biological cost. The present study aimed to establish the proportion of dreams containing physical threats to the dreamer, whether these represent realistic life-threatening events, and whether the dreamer...
Many tryptamine derivatives are known to induce altered states of consciousness and are increasingly of interest in forensic and neurobiological studies. The analytical chemistry of certain synthetic routes to the tryptamines is discussed and likely side products and impurities identified, where literature reports are available. Recent examples from the authors' laboratory are presented to...
BACKGROUND: Consciousness poses two main problems. The first is understanding the conditions that determine to what extent a system has conscious experience. For instance, why is our consciousness generated by certain parts of our brain, such as the thalamocortical system, and not by other parts, such as the cerebellum? And why are we conscious during wakefulness and much less so during...
Abstract We ended the last chapter with an apparent contradiction of the sort that is typical in philosophy. On the one hand we accept a view that seems overwhelmingly convincing—the universe is material—but that seems inconsistent with another view that we cannot give up—minds exist. This pattern occurs over and over in philosophy. We will see in chapter 7 that the free-will problem exhibits...
“While the neurophysiological and neurochemical bases of dreams will ultimately be uncovered, a full understanding requires an explanation of dream content that makes sense in both psychological and neurobiological terms.” Payne and Nadel 2004 First, Ken Paller (Paller and Voss 2004) is to be congratulated for bringing together a prime and comprehensive group of researchers for this special...