The impact of television,print, and audio on children's recall of the news.

Recent research has shown that children remember more from television news than from print news, a finding that has been explained by the extra mnemonic support offered by redundant television pictures (the dual‐coding hypothesis). The present study was designed to examine three alternative explanations, which attribute children's superior recall of television news to (a) underutilization of the print medium, (b) a recall advantage of listening compared with reading, and imperfect reading ability. A sample of 192 fourth and sixth graders was presented with children's news stories, either in (a) their original television form, (b) a bare print version, a print version supplemented with photo material or in (d) an audio version. Results indicated that the television presentation was remembered better than any of the other three versions. The results of the study were consistent with the dual‐coding hypothesis, whereas no support was found for the alternative explanations tested in the study.     

Two-flash threshold, sensitivity and β in normal subjects and schizophrenics

Two-flash threshold, response criterion, and sensitivity (defined by the slope of the psychophysical ogive), were examined in schizophrenics and in normals under three conditions--a base-line condition, and during and after continuous white noise. Schizophrenics were subdivided into four groups on the basis of whether or not they exhibited paranoid symptomatology and electrodermal orienting responses. In general schizophrenics had more lenient two-flash response criteria than normal subjects. In the base-line condition schizophrenics with orienting responses had lower two-flash thresholds than those without orienting responses. Paranoid schizophrenics had more lenient criteria than non-paranoid schizophrenics and lower sensitivity than the non-paranoid group with orienting responses. Differential group effects were obtained during and after noise, especially with regard to sensitivity.     

Laterality, attention and rate effects in the auditory temporal discrimination of chronic schizophrenics: The effect of treatment with chlorpromazine

Schizophrenic patients, non-psychotic patients and healthy subjects were required to detect longer target tones from a sequence of short tones presented to either ear. The rate of stimulus presentation and the frequency of switches between the ears were varied. The schizophrenic patients were examined for four weeks while on standard clinical doses of chlorpromazine, for four weeks while on placebo, and for four weeks following reinstatement of medication. Lateral asymmetries in the performance of the schizophrenics were found to diminish in proportion to both the duration and the dosage of medication. The results are consistent with the hypothesis that chlorpromazine causes an improvement of left hemisphere performance relative to the right. The performance of the schizophrenics, relative to that of comparison subjects, deteriorated as the rate of stimulus presentation increased, supporting the hypothesis that schizophrenics have particular difficulties in response selection or organization.     

Psychobiology of altered states of consciousness

The article reviews the current knowledge regarding altered states of consciousness (ASC) (a) occurring spontaneously, (b) evoked by physical and physiological stimulation, (c) induced by psychological means, and (d) caused by diseases. The emphasis is laid on psychological and neurobiological approaches. The phenomenological analysis of the multiple ASC resulted in 4 dimensions by which they can be characterized: activation, awareness span, self-awareness, and sensory dynamics. The neurophysiological approach revealed that the different states of consciousness are mainly brought about by a compromised brain structure, transient changes in brain dynamics (disconnectivity), and neurochemical and metabolic processes. Besides these severe alterations, environmental stimuli, mental practices, and techniques of self-control can also temporarily alter brain functioning and conscious experience.     

A review of the impact of hypnosis,relaxation, guided imagery and individual differences on aspects of immunity and health

This review considers psychological interventions involving relaxation and guided imagery targeting immune functions. The review provides evidence of immune control accompanied by reports of enhanced mood and well-being. Three recent investigations of the author and his colleagues with self-hypnosis training incorporating imagery of the immune system are outlined. In two studies, hypnosis buffered the effects of stress on immune functions in medical students at exam time, and the comparison of self-hypnosis with and without immune imagery confirmed advantages to targeted imagery for both immune function and mood, and importantly, fewer winter viral infections. The implications for health were investigated in a third study in patients with virulent and chronic herpes simplex virus-2 HSV-2). Six weeks of training almost halved recurrence, improved mood and reduced levels of clinical depression and anxiety. Immune functions were up-regulated, notably functional natural killer cell activity to HSV-1. Individual differences in hypnotic susceptibility and absorption have typically been found to predict efficacy. New replicable evidence is reviewed of the importance of cognitive activation, a personality difference whose neurophysiological underpinning is consistent with left hemispheric preferential influences over the immune system. Now that the validation of psychological interventions includes advantages for health, this field of enquiry, which has been characterised by modest, small scale, largely preliminary studies, warrants a greater investment in research.     

A theory of alpha/theta neurofeedback,creative performance enhancement,long distance functional connectivity and psychological integration

Professionally significant enhancement of music and dance performance and mood has followed training with an EEG-neurofeedback protocol which increases the ratio of theta to alpha waves using auditory feedback with eyes closed. While originally the protocol was designed to induce hypnogogia, a state historically associated with creativity, the outcome was psychological integration, while subsequent applications focusing on raising the theta–alpha ratio, reduced depression and anxiety in alcoholism and resolved post traumatic stress syndrome (PTSD). In optimal performance studies we confirmed associations with creativity in musical performance, but effects also included technique and communication. We extended efficacy to dance and social anxiety. Diversity of outcome has a counterpart in wide ranging associations between theta oscillations and behaviour in cognitive and affective neuroscience: in animals with sensory-motor activity in exploration, effort, working memory, learning, retention and REM sleep; in man with meditative concentration, reduced anxiety and sympathetic autonomic activation, as well as task demands in virtual spatial navigation, focussed and sustained attention, working and recognition memory, and having implications for synaptic plasticity and long term potentiation. Neuroanatomical circuitry involves the ascending mescencephalic-cortical arousal system, and limbic circuits subserving cognitive as well as affective/motivational functions. Working memory and meditative bliss, representing cognitive and affective domains, respectively, involve coupling between frontal and posterior cortices, exemplify a role for theta and alpha waves in mediating the interaction between distal and widely distributed connections. It is posited that this mediation in part underpins the integrational attributes of alpha–theta training in optimal performance and psychotherapy, creative associations in hypnogogia, and enhancement of technical, communication and artistic domains of performance in the arts.     

Effects of guided immune-imagery: The moderating influence of openness to experience

It is widely believed that personality has an important role in determining the effectiveness of guided imagery (GI) interventions. The primary aim of the current study was to examine whether the effect of GI on several outcome measures was dependent upon openness to experience, a theoretically relevant variable previously unexplored as a potential moderator. Thirty-five healthy participants were randomised to an animated imagery, verbal imagery or no-intervention control group, with imagery groups receiving 10 × 20 min sessions. Pre/post-assessments of cortisol, sleep, stress and creativity were administered along with the openness to experience scale. Regression analysis indicated a significant increase in cortisol and decrease in tiredness following verbal GI, but only for those high in openness. The efficacy of GI interventions may be dependent upon openness to experience and this variable should be accounted for in future studies.     

Effects of instructions and drug administration on temporal resolution of paired flashes

Sixteen male alcoholics were shown pairs of light flashes separated by intervals ranging from 0 to 100 msec., and judged whether there were one or two flashes. Two-flash fusion theshold (TFT) was raised by administration of promazine hydrochloride, a tranquilizing drug, and was higher for strict than for lenient instructions. Signal detection analysis showed that the drug reduced sensitivity but did not affect criterion, while instructions altered criterion placement without changing sensitivity.     

Gains, losses and lateral differences in the hearing of schizophrenic patients.

Schizophrenic patients, whether newly admitted to hospital or institutionalized, exhibited ear differences in absolute threshold. Right ear thresholds were superior to left ear thresholds especially at frequencies above 2 kHz, but deteriorated in the course of the day or as a result of repeated testing. These effects were attributed to the dynamics of left hemisphere processes which in schizophrenia appear susceptible to inhibition and fatigue, effects that may be endocrine related. Relative to control subjects institutionalized schizophrenic patients showed superior hearing below 1 kHz and inferior hearing above 2 kHz.     

A theory of alpha/theta neurofeedback, creative performance enhancement, long distance functional connectivity and psychological integration

Professionally significant enhancement of music and dance performance and mood has followed training with an EEG-neurofeedback protocol which increases the ratio of theta to alpha waves using auditory feedback with eyes closed. While originally the protocol was designed to induce hypnogogia, a state historically associated with creativity, the outcome was psychological integration, while subsequent applications focusing on raising the theta–alpha ratio, reduced depression and anxiety in alcoholism and resolved post traumatic stress syndrome (PTSD). In optimal performance studies we confirmed associations with creativity in musical performance, but effects also included technique and communication. We extended efficacy to dance and social anxiety. Diversity of outcome has a counterpart in wide ranging associations between theta oscillations and behaviour in cognitive and affective neuroscience: in animals with sensory-motor activity in exploration, effort, working memory, learning, retention and REM sleep; in man with meditative concentration, reduced anxiety and sympathetic autonomic activation, as well as task demands in virtual spatial navigation, focussed and sustained attention, working and recognition memory, and having implications for synaptic plasticity and long term potentiation. Neuroanatomical circuitry involves the ascending mescencephalic-cortical arousal system, and limbic circuits subserving cognitive as well as affective/motivational functions. Working memory and meditative bliss, representing cognitive and affective domains, respectively, involve coupling between frontal and posterior cortices, exemplify a role for theta and alpha waves in mediating the interaction between distal and widely distributed connections. It is posited that this mediation in part underpins the integrational attributes of alpha–theta training in optimal performance and psychotherapy, creative associations in hypnogogia, and enhancement of technical, communication and artistic domains of performance in the arts.