Image tracing: An analysis of its effectiveness in children's pictorial discrimination learning

Previous research has shown that requiring children to trace from memory the correct member of a pictorial discrimination pair markedly facilitates performance. The experiment reported here offers support for a presumed component of this learning strategy, namely, “memory imagery.” In particular, subjects who traced directly on top of the correct picture did not perform as well as those who traced it from memory. Various theoretical explanations of the image-tracing phenomenon are considered, including depth of processing, dual coding, and frequency.     

Task parameters affecting the efficacy of a visual imagery learning strategy in younger and older children

Second- and sixth-grade children were presented a list of paired associates (concrete nouns) either at a faster (6-second) or a slower (12-second) presentation rate, under either an instruction to generate an interactive image for the pairs or a no strategy, control instruction. The list was composed of two pair types: easy-to-imaginally relate and difficult-to-imaginally relate pairs, as determined from a prior norming study. At the faster presentation rate, 2nd graders were able to benefit from the imagery strategy with easy pairs, but not with difficult pairs. At the slower rate, however, they applied the imagery strategy equally well to both pair types. Older children benefited from the imagery strategy with both pair types at both rates.     

Wavelength effects on simple reaction time

Simple reaction time was measured to spectral lights matched photometrically in luminance. When these lights were presented on a dimmer achromatic background, reaction time did not vary as a function of wavelength. Moreover, reaction times to white and chromatic lights were the same. When the luminance of the background was the same as that of the chromatic lights, reaction time increased and showed a strong effect of wavelength. Reaction time in this condition appeared to follow a saturation function. The results are described in terms of the operation of achromatic and chromatic processing channels.     

Electroencephalographic biofeedback methodology and the management of epilepsy

Currently considerable research is being directed toward developing methodologies for controlling internal processes. An applied branch of the basic field of psychophysiology, known as biofeedback, has developed to fulfill clinical needs related to such control. Current scientific and popular literature abounds with numerous examples of how biofeedback is being used. For example, germinal studies by Kamiya (1962), and later work by Lynch and Paskewitz (1971), and Beatty (1973), as well as many others have shown that the EEG alpha rhythm (8–13 Hz) recorded from occipital regions of the human brain can be behaviorally manipulated when feedback or reward is provided for changing the density of this activity. Other researchers have provided evidence that theta activity (4–7 Hz) and the beta activity (greater than 14 Hz) can also be controlled by humans and analogs of this activity have been conditioned in animals as well, (Green, Green and Walters, 1971). In addition to the work that has been carried out with the EEG, researchers such as Engle and Bleecker (1973) have indicated that it might be possible to control cardiac arrhythmias through biofeedback. Studies by Elder,et al. (1973), have provided some hope that blood pressure in humans might also be conditioned. Also, considerable effort has been directed to the control of responses from single muscles with particular applied emphasis in neuromuscular rehabilitation, control of muscle tension for tension headaches and the management of migraine headaches through vasomotor conditioning (Brudny,et al., 1974; Basmajian, 1963, 1971; Sargent, et al., 1973).     

Do causal attributions mediate the effects of extrinsic rewards on intrinsic interest?

Many investigators have demonstrated that task-contingent extrinsic incentives can reduce an individual's interest in some intrinsically rewarding task. Although it has been widely assumed that this “undermining effect” is mediated by the individual's causal attributions for engaging in the task, there has been little independent verification of this notion. In the present study subjects were asked to perform an inherently interesting problem-solving task. Half of the subjects were told that they could earn money by solving the task successfully (Money condition), whereas the other half were not (Control condition). Consistent with previous research, Money condition subjects expressed less liking for the task. In addition, Many condition participants attributed their task performance to less internal causes. Furthermore, across conditions, subjects who attributed their behavior to less internal causes were less apt to enjoy the task. The present data, therefore, more convincingly implicate the mediating role of causal attributions in the relationship between extrinsic rewards and intrinsic interest. Alternative explanations are discussed.     

On the relationship of data to theory: A reply to Ronis and Greenwald

Ronis and Greenwald (Dissonance theory revised again: Comment on the paper by Fazio, Zanna, and Cooper. Journal of Experimental Social Psychology, 15, 1979, 62–69) question our integrative formulation of dissonance and self-perception processes. We argue that our formulation provides an explanation of both the full range of results in the literature and our own experimental data, while neither dissonance nor self-perception theory can singly explain the existing data.     

Clinical Frequencies Recording System: Standardizing staff observations by event recording

Certain aspects of staff performance and resident behavior are less adequately assessed by standardized time sampling procedures than by complete recording of the incidence of specified events. An approach to gathering such data through systematizing the observations of clinical staff — the Clinical Frequencies Recording System — is described. Scores from the Clinical Frequencies System reflect the rate per opportunity with which individual behaviors are performed, with computer summarization providing higher-level behavioral indexes for research and evaluation purposes. Staff training and system implementation are discussed, and reliability and validity data from a system employed on two different treatment units over a period of several years are presented.The research reported in this article was supported, in part, by Public Health Service Grants MH-15553 and MH-25464 from the National Institute of Mental Health.Presented at the 87th Annual Meetings of the American Psychological Association, New York City, September 1979, as part of a symposium on New assessment systems for residential treatment, management, research, and evaluation.     

Effects of electrocutaneous ready—signal variation on visual reaction time

Two ready-signal variables (direction of change in electrocutaneous stimulation and method of presentation: “trace” or “delayed”) were combined in a 2 by 2 by Ss design. Neither variable produced a significant main effect but yielded a highly significant interaction. Results were interpreted in terms of arousal. intersensory. and conditioning explanations of ready-signal effects.     

Immediate correction and adaptation based on viewing a prismatically displaced scene

It was shown that when observers view a scene of a room through displacing prisms there is an immediate correction of the prismatic distortion. Objects appear to lie in a direction closer to their true direction than to that produced by the refraction of the prisms. It was also shown that a brief period of exposure to the prismatically viewed scene, without movement or sight of the body, results in substantial adaptation to the displacement.