Perfect visual short-term memory for periodic patterns

Abstract

The short-term memory for spatial frequency information was assessed by measuring the spatial frequency discrimination thresholds for briefly flashed luminance gratings as a function of the time interval between the test and reference gratings, using a computer-controlled two-interval forced-choice procedure. Discrimination thresholds were stable for interstimulus intervals in the range 1–30 sec under all conditions tested. At low contrasts, short exposure times and low spatial frequencies discrimination thresholds increased, but no interactions between stimulus parameters affecting thresholds and interstimulus interval were observed. It is concluded that factors limiting spatial discrimination are associated with the sensory coding stage. Spatial discrimination and visual memory may be based on a common representation, which is perfectly retained in short-term memory. Visual half-field tests revealed no hemispheric differences in the processing and retention of spatial frequency information.     

Influences of visibility,intentions, and probability in a peripheral cuing task

According to the concept of direct parameter specification, nonconsciously registered information can be processed to the extent that it matches currently active intentions of a person. This prediction was tested and confirmed in the current study. Masked visual information provided by peripheral cues led to reaction time (RT) effects only if the information specified one of the required responses (Experiments 1 and 3). Information delivered by the same masked cues that did not match the intentions was not used. However, the same information influenced RT if it was provided by visible cues (Experiments 2 and 3). The results suggest that the processing of nonconsciously registered information is flexible because it is susceptible to the changing intentions of a person. Yet, these processes are apparently restricted, as nonconsciously registered information cannot be used as easily for purposes not corresponding to the currently active intentions as better visible information.     

Das Reizdarmsyndrom

Irritable bowel syndrome is a common disorder that can be associated with significant disability and health care costs. Beyond it is the most common disease diagnosed by gastroenterologists. Diagnosis is based on typical complaints including abdominal pain, bloating, irregularities of bowel movements and defecation. The discussion of different etiopathogenetic models showed that irritable bowel syndrome is a biopsychosocial disorder in which psychosocial factors, altered motility and visceral hypersensitivity interact. When symptoms are moderate to severe and are associated with psychological distress and impaired quality of life, psychological treatments can be considered. Apart from symptomatic treatment with loperamide for diarrhoea and antidepressants for abdominal pain and comorbid psychological symptoms for example cognitive behavioral treatment, hypnotherapy, psychodynamic short-term psychotherapy and functional relaxation are being evaluated.     

Musiktherapie in der deutschen Psychosomatik

The authors report about the clinical implementation of music therapy in psychosomatic hospitals in FRG based on a survey among practising music therapists: attending especially to the qualification of music therapists, their integration and the problem of indication. The coverage of music therapy in the standard textbooks on psychosomatic medicine is discussed.Finally the state of research on music therapy in psychosomatic hospitals is reviewed.