Lexical but not semantic priming in Alzheimer's disease.

The hypothesis that patients with Alzheimer's disease (AD) have a disturbance in semantic processing was tested using a new lexical-priming task, threshold oral reading. Healthy elderly controls showed significant effects of priming for word pairs that are associatively related (words that reliably co-occur in word association tests) and for word pairs that are semantically related (high-frequency exemplars that belong to the same superordinate category but are not high-frequency associates). AD patients showed effects of priming for associatively related words but not for word pairs that are related only by shared semantic features. These results are consistent with the hypothesis that semantic processing is impaired in AD and suggest that independent networks of relationships among words and among concepts in semantic memory may be differentially disrupted with various forms of brain damage.     

Sex differences in gender-related childhood memories

Based on theories of gender development, especially the one proposed by Nancy Chodorow, it was predicted that boys' gender-related childhood memories will be different from girls' on five dimensions related to activity, emotionality, and sex appropriateness. Forty-five men and 45 women were asked to describe their earliest gender-related childhood memories. The memories were analyzed by two judges. The data document a significant sex difference in the activity and emotionality of the memories. Men's memories were more active and women's more emotional. The predictions that men's memories of sex-appropriate behavior will be more positive, will have fewer deviations from sex-appropriate behavior, and when such deviations occur, they will be associated with more negative emotions were not confirmed. It is suggested that childhood memories can be seen as reflecting actual differences between the sexes in childhood experiences, or as the result of a process of memory selection that reflects men's and women's different gender-related experiences as adults.The author would like to thank Beni Feinholtz and Naftali Menashe, both students at Tel Aviv University, for their help in the data collection.     

The struggle in psychotherapy: its influence on some theories.

If the theories of Jerome Frank, Jay Halley, and Hans Strupp are considered as a conversation with the spirit of psychoanalysis, the subject of the conversation appears to be the struggle involved in psychotherapy. Beyond implying that there is such a struggle, the theories do not satisfactorily establish its nature. The author suggests that the struggle may have to do with the therapist's insistence on what Frank calls a sheltered environment for patient experimentation.     

Newborn visual attention to repeated exposure of redundant vs “novel” targets

This study was designed to test the proposition that habituation in the newborn human is specific to repetition of a single impinging stimulus. Using a group (3) by sex (2) by trials (8) repeated measures factorial design, 120 newborn infants were repeatedly presented with a single visual target (2 × 2 or 12 × 12 black and white checkerboard) or exposed to a series of different targets, and the infants’ visual fixation time was measured. Infants exposed to the multiple target series had a significantly greater mean visual fixation time than did infants repeatedly presented with a single target. However, all groups of infants displayed response decrement in fixation time with repeated target exposure. In addition, infants receiving the multiple target series displayed differential visual fixation to the stimuli, with, in general, targets of greater redundancy (Le., those having a higher degree of spatial repetition and duplication of elements) being most “preferred.” These results suggest that young human infants are receptive and responsive to stimulus change in the immediate visual environment.     

A follow-up to “Scale Effects in Memory for the Time of Events”: The earthquake study

This study is a follow-up to Friedman and Wilkins’s (1985) experiments on memory for the time of past events. That research showed that judgments of the time of past news events are often more accurate on finer than on grosser time scales. This finding is consistent with a reconstructive model but troublesome for models emphasizing judgments of the age of a memory. The present study was designed to control for the possibility that scale differences in Friedman and Wilkins’s study were due to the use of general time knowledge to infer when events of a given sort were likely to have occurred. Ninety-nine subjects estimated the time of an earthquake that had occurred 9 months prior to recall and that they reported having actually experienced. Separate estimates were given on each of five time scales ranging from year to hour. Recall of hour was extremely accurate in spite of the relative inaccuracy of the next three grosser time scales. This and other results support Friedman and Wilkins’s original interpretation.     

An analysis of fidgeting and associated individual differences

Fidgeting was defined as engaging in manipulations of one's own body parts or other objects, such actions being peripheral or nonessential to central ongoing events or tasks Two studies employed preliminary fidgeting questionnaires of 70 and 106 items, respectively, tapping a wide range of habitual behaviors Item selection and factor analyses led to the development of a final, 40-item, individual difference measure of fidgeting tendency which is balanced for response bias and has an alpha reliability coefficient of 89 Convergent and construct validity were supported by positive correlations between the fidgeting tendency measure and measures of tendencies to engage in extraneous activities (consuming alcoholic drinks, cigarette smoking, eating, daydreaming, restlessness, insomnia) while preoccupied with certain situations and tasks These findings implied that fidgeting is an activity overflow and that it is more probable when the organism's physical activity is constrained by the central or focal act Fidgeting tendency also correlated positively with binge eating and with physical activity In two additional studies, questionnaire fidgeting tendency scores correlated positively with direct observations of fidgeting by subjects and with peer predictions Personality correlates of fidgeting tendency were well defined More fidgety persons were more unpleasant and more arousable (i e, more anxious or hostile) Fidgeting tendency did not correlate significantly with subject sex or with arousal-seeking tendency     

Relationship of internal-external locus of control,self-concept,and masculinity-femininity to fear of success in Black freshmen and senior college women

The concepts of locus of control, self-concept, masculinity-femininity, and their relationship to fear of success in Black college women were explored. Scores were obtained from stories written in response to six verbal cues designed to assess fear-of-success imagery. Tabulations ranging from zero (denoting absence of fear) to six (denoting most fear) were correlated with Gurin's I-E Scale, the Modified Piers-Harris Self-Concept Scale, and the Modified Gough Masculinity-Femininity Scale. There was no significant mean difference between freshmen and seniors on fear of success. However, an analysis of variance revealed that externals showed significantly more fear-of-success imagery than internals. Significant inverse correlations were located between the measure of self-concept and certain cues eliciting fear of success. Femininity was not shown to be related to any of the fear-of-success measures.     

Framing pictures: the role of knowledge in automatized encoding and memory for gist

In general, frame theories are theories about the representation and use of knowledge for pattern recognition. In the present article, the general properties of frame theories are discussed with regard to their implications for psychological processes, and an experiment is presented which tests whether this approach yields viable predictions about the manner in which people comprehend and remember pictures of real-world scenes. Normative ratings were used to construct six target pictures, each of which contained both expected and unexpected objects. Eye movements were then recorded as subjects who anticipated a difficult recognition test viewed the targets for 30 sec each. Then, the subjects were asked to discriminate the target pictures from distractors in which either expected or unexpected objects had been changed. One consequence of the embeddedness of frame systems is that global frames may function as "semantic pattern detectors," so that the perceptual knowledge in them could be used for relatively automatic pattern recognition and comprehension. Thus, subjects might be able to identify expected objects by using automatized encoding procedures that operate on global physical features. In contrast, identification of unexpected objects (i.e., objects not represented in the currently active frame) should generally require more analysis of local visual details. These hypotheses were confirmed with the fixation duration data: First fixations to the unexpected objects were approximately twice as long as first fixations to the expected objects. On the recognition test, subjects generally noticed only the changes that had been made to the unexpected objects, despite the fact that the proportions of correct rejections were made conditional on whether the target objects had been fixated. These data are again consistent with the idea that local visual details of objects represented in the frame are not neccesary for identification and are thus not generally encoded. Further, since subjects usually did not notice when expected objects were deleted or replaced with different expected objects, it was concluded that if two events instantiate the same frame, they may often be indistinguishable, as long as any differences between them are represented as arguments in the frame. Thus, for the most part, the only information about an event that is episodically "tagged" is information which distinguishes that particular event from others of the same general class. The data reinforce the utility of a frame theory approach to perception and memory.