The effects of relaxation response meditation on the symptoms of irritable bowel syndrome: results of a controlled treatment study.

In this study, Herbert Benson's (1975) Relaxation Response Meditation program was tested as a possible treatment for Irritable Bowel Syndrome (IBS). Participants were 16 adults who were matched into pairs based on presence of Axis I disorder, primary IBS symptoms and demographic features and randomized to either a six week meditation condition or a six week wait list symptom monitoring condition. Thirteen participants completed treatment and follow-up. All subjects assigned to the Wait List were subsequently treated. Patients in the treatment condition were taught the meditation technique and asked to practice it twice a day for 15 minutes. Composite Primary IBS Symptom Reduction (CPSR) scores were calculated for each patient from end of baseline to two weeks post-treatment (or to post wait list). One tailed independent sample t-tests revealed that Meditation was superior to the control (P=0.04). Significant within-subject improvements were noted for flatulence (P=0.03) and belching (P=0.02) by post-treatment. By three month follow-up, significant improvements in flatulence (P<0.01), belching (P=0.02), bloating (P=0.05), and diarrhea (P=0.03) were shown by symptom diary. Constipation approached significance (P=0.07). Benson's Relaxation Response Meditation appears to be a viable treatment for IBS.     

What makes information important and its influence on learning in self-directed study.

This study investigated what makes text-based information important and what is its influence on learning. College students studied an expository text following their own self-directed study procedures. Data from Exp. 1 (n = 60) and Exp. 2 (n = 40) showed that information was considered important if it (a) began and ended text, (b) began a paragraph, (c) appeared at somewhat equal intervals in text, and (d) contained enumerations of concepts. Subjects recalled information that (a) began the text and (b) contained examples of enumerations. It appeared that text-based variables established what was important and this influenced learning. Implications for the selective attention hypothesis and its volume-of-attention corollary, the cycles hypothesis, and the slot-filling hypothesis are discussed.     

Backward visual masking in children and adolescents: sensory transmission, accrual rate and asymptotic performance.

We have applied the Lagged Accrual Model of visual backward masking to a group of children (aged 10) and a group of adolescents (aged 15). The two groups did not differ on sensory transmission time, indicating that the speed of sensory transmission has already attained its maximum by age 10. The older group showed a significantly greater rate of information accrual and a greater amount of information extraction. An application of the model to previously published data revealed that very young children (aged 5) have slower sensory transmission times.     

Sex differences in the incidence and sonographic characteristics of antipredator ultrasonic cries in the laboratory rat (Rattus norvegicus).

Long-Evans rats (Rattus norvegicus; ns = 10 males and 10 females) in a burrow system responded to a cat in the open area by retreating to a burrow and emitting ultrasounds of 18-27 kHz. Females made more frequent ultrasonic cries, with longer durations of ultrasounds. In a 2nd study (ns = 19 males and 19 females), sonographic analyses confirmed the more frequent vocalizations of females and indicated that the sound pulses of females were reliably shorter in duration and of higher base frequency than those of males. Also, females emitted more pulses per pulse train with shorter within-train interpulse intervals. Six basic pulse forms were determined, and males emitted more (70%) pulses with negatively accelerated descending frequencies than females (25%). The findings indicate that female rats show qualitatively different antipredator vocalizations than do males and add to previous findings of higher levels of female antipredator defensiveness.     

Self- and interview-rated negative mood states in schizophrenia: Their convergence and prediction of thought disturbance

This longitudinal study evaluated the relations between self- and interview-rated negative mood in schizophrenics and compared the prognostic utility of these two methods. Thirty schizophrenics who had been stabilized on neuroleptic medications were evaluated with self-report and interview-based measures of mood and symptomatology at an initial assessment and again at 6-month follow-up. Results indicated that measures of self- and interview-rated negative mood showed little agreement at the initial assessment; however, at follow-up, significant convergent correlations between the two methods were obtained. Self-reported negative mood at the initial evaluation predicted the severity of thought disturbance at follow-up, whereas interview-based ratings of mood did not. The results underscore the importance of conducting multimethod assessments of mood and support other research suggesting that self-reported negative mood states may predict course of the illness in schizophrenia.This research was supported by National Institute of Mental Health (NIMH) Grants MH38636 and MH39998 and by a grant from the National Alliance for Research in Schizophrenia and Depression (NARSAD). Jack J. Blanchard was also supported in part by NIMH Grant MH18932 for the Collaborative Training Program in Schizophrenia Research at the Medical College of Pennsylvania/EPPI. Portions of this research were presented at the 24th Annual Meeting of the Association for the Advancement of Behavior Therapy, San Francisco, California, November 2, 1990, and at the 3rd International Congress on Schizophrenia Research, Tucson, Arizona, April 22, 1991.     

Behaviorally treated irritable bowel syndrome patients: a four-year follow-up

Nineteen of 27 patients suffering from Irritable Bowel Syndrome (IBS) who had completed a multicomponent treatment involving progressive muscle relaxation, thermal biofeedback, cognitive therapy and IBS education were located and evaluated 4 yr posttreatment. Seventeen of 19 (89.5, or 63% of the total original sample) rated themselves as more than 50% improved. Six of the 12 patients (50%) who submitted symptom monitoring diaries met our criteria for clinical improvement, i.e. achieving at least a 50% reduction in primary IBS symptom scores. The means on all measures at long-term follow-up were lower than those obtained prior to treatment. When follow-up symptom means were compared with pretreatment means, significant (P less than 0.05) reductions were obtained on abdominal pain/tenderness, diarrhea, nausea, and flatulence.     

Four process studies in the behavioral treatment of chronic headache

Four studies of ‘process’ variables in the behavioral treatment of chronic headache are examined. No relation between headache activity-level reduction and therapist variables such as level of experience (study 1) or warmth, competence or helpfulness as perceived by the patient (Study 2) was found from treatments using relaxation training and/or biofeedback. A significant relation was found, however, between regularity of relaxation practice at home (Study 4) and headache-activity reduction and between regularity of showing some degree of hand warming in thermal biofeedback treatment for vascular headache and headache activity-level reduction (Study 3). Finally, no relation was found between changes in EMG and headache activity-level for tension-headache sufferers treated with frontal EMG biofeedback.