The representational bias of acquired memory processes

The notion that some memory processes are acquired has been around for at least two thousand years. However, acquired memory processes have been made the object of scientific investigation in only the past two decades. Traditionally, psychologists have assumed that acquired memory processes are equally effective across the entire range of memory tasks. This article reviews research that has investigated whether these processes are equally effective across tasks or are more effective for just certain tasks. The review indicates that most, if not all, acquired memory processes are biased to deal effectively just certain kinds of mental representation. The article proposes that these processes are representationally biased because (1) they activate basic memory processes (e.g. imagery, rehearsal) which themselves are biased to process certain representational attributes and because (2) their use of basic processes follows a sequence required by particular memory tasks. Increased understanding of the representational bias of acquired processes may be seen to enable better control of memory performance and to foster more powerful investigations of memory phenomena.     

Problem of diagnostic muscle tissue removal: biopsy, preparation and preservation

Intensive professional cooperation of all diagnostical branches needed incl. surgery is presupposition for the investigation of muscle biopsies. Knowledge needed on diagnostic clearing in advance and correct determination of kinds of biopsy as well as careful detraumatic taking of tela have decisive influence on the statement value of the result of investigation techniques concerning fine-tela. Muscle biopsies should be made exclusively at such places where the technical basis is available for optimum investigation and preparation.     

Retrieval and comparison processes in part--whole decisions

Undergraduate students were presented with word pairs (e.g., egg-yolk) and were timed as they decided whether one word named part of the thing named by the other word. In Experiment 1, "no" responses to nonpart pairs (e.g., fish-flaps) were slowed by the similarity of the stimulus part (flaps) to a part that the stimulus object did possess (fins). This suggested that decisions were made by retrieving parts of the stimulus object from memory and comparing them to the stimulus part. Whereas the parts used as stimuli in Experiment 1 were nonspecific, belonging to several different types of object (e.g., wheel), those selected for Experiment 2 were specific to a single type of object (e.g., thumb). In Experiment 2, "no" responses to nonpart pairs (e.g., foot-thumb) were slowed by similarity of the stimulus object (foot) to an object that the stimulus part (thumb) belonged to (hand). This suggested that decisions were made by retrieving the object to which the stimulus part belonged and comparing it to the stimulus object. The results support a hybrid model of part-whole decisions that includes directed retrieval of relational knowledge from memory and a comparison process.     

Response-retrieval and negative priming

The existence of across-notation automatic numerical processing of two-digit (2D) numbers was explored using size comparisons tasks. Participants were Arabic speakers, who use two sets of numerical symbols—Arabic and Indian. They were presented with pairs of 2D numbers in the same or in mixed notations. Responses for a numerical comparison task were affected by decade difference and unit-decade compatibility and global distance in both conditions, extending previous findings with Arabic digits (Nuerk, Weger, & Willmes, 2001). Responses for a physical comparison task were affected by congruency with the numerical size, as indicated by the size congruency effect (SiCE). The SiCE was affected by unit-decade compatibility but not by global distance, thus suggesting that the units and decades digits of the 2D numbers, but not the whole number value were automatically translated into a common representation of magnitude. The presence of similar results for same- and mixed-notation pairs supports the idea of an abstract representation of magnitude.     

Phylo- and ontogenetic fears and the expectation of danger: differences between spider- and flight-phobic subjects in cognitive and physiological responses to disorder-specific stimuli

To compare specific phobias with an assumed phylogenetic or ontogenetic origin in responses to fear-relevant (FR) stimuli, 17 spider- and 17 flight-phobic participants were exposed to pictures of spiders, flight accidents, or mushrooms randomly followed by either a startling noise or nothing else. While both groups showed a disorder-specific expectancy bias, only spider-phobic participants exhibited a disorder-specific covariation bias. Spider-phobic participants also showed enhanced skin conductance responses (SCRs), event-related brain potentials (ERPs), and startle responses triggered by disorder-specific FR pictures while flight-phobic participants showed only disorder-specific enhanced SCRs. In sum, our direct comparison between ontogenetic and phylogenetic phobias revealed that the former is characterized by biased and enhanced responses triggered by disorder-specific FR stimuli presumably based on a biological preparedness.     

On the distinction between the concept of God and conceptions of God

The starting-point is the distinction between concept and conception. Our conceptions of gold, for instance, are the different understandings we get when we hear the word ‘gold’ whereas the concept of gold consists in the scientific determination of what gold is. It depends on the context whether it is more reasonable to claim a concept or to look for fitting conceptions. By arguing against metaphysical realism and for non-metaphysical realism, I will elaborate on some philosophical reasons for dealing with conceptions instead of concepts of God, and secondly, I will discuss how such conceptions should be critically assessed. This article is an amended and enlarged version of a paper delivered at the conference on The Concept of God, arranged by the British Society for the Philosophy of Religion in Oxford, Great Britain, September 11–13, 2007.     

Nichtspezifische,funktionelle und somatoforme Körperbeschwerden

In the S3 guidelines on non-specific, functional and somatoform bodily complaints, a broad group of medical and psychological societies as well as patient representatives have for the first time achieved an evidence-based consensus on terminology and care of these patients. This paper summarizes the main background information and recommendations for psychotherapists. For mild courses treatment by the general practitioner with establishment of a biopsychosocial explanatory model and physical as well as social activation is usually sufficient. More severe courses call for cooperative, coordinated management, including regular appointments with the general practitioner, graded activation and psychotherapy, especially cognitive behavioral, in addition to psychodynamic interpersonal or hypnotherapeutic imaginative psychotherapy. In particularly severe courses multimodal and if necessary day clinic or inpatient treatment is needed. Additionally the patient guidelines for affected people and their relatives are presented.     

Aging and the visual, haptic, and cross-modal perception of natural object shape

One hundred observers participated in two experiments designed to investigate aging and the perception of natural object shape. In the experiments, younger and older observers performed either a same/different shape discrimination task (experiment 1) or a cross-modal matching task (experiment 2). Quantitative effects of age were found in both experiments. The effect of age in experiment 1 was limited to cross-modal shape discrimination: there was no effect of age upon unimodal (ie within a single perceptual modality) shape discrimination. The effect of age in experiment 2 was eliminated when the older observers were either given an unlimited amount of time to perform the task or when the number of response alternatives was decreased. Overall, the results of the experiments reveal that older observers can effectively perceive 3-D shape from both vision and haptics.