WORKING MEMORY CAPACITY DISSOCIATES LEXICAL AND SENTENTIAL CONTEXT EFFECTS

Abstract— Semantically associated and unassociated word pairs were embedded in normal meaningful sentences and in sentences that were semantically anomalous throughout The influence of lexical context was isolated via comparison of responses to the second words of the associated and unassociated pairs. The influence of sentence-level context was isolated by comparing responses to the same words in the two sentence types Subjects of high, medium and low working memory capacity (as evaluated by the reading span test) showed modulations of event-related brain potentials in response so lexical context. In contrast, only the high- and medium-capacity groups were responsive to purely sentence-level semantic context. The results demonstrate that sentential context influences the processing of words in intermediate sentence positions at normal reading speeds but that the on-line utilization of this context is more demanding of working memory than single-word contexts.     

MONITORING CONSCIOUS RECOLLECTION VIA THE ELECTRICAL ACTIVITY OF THE BRAIN

Abstract— Although another person's experience of recollection cannot be observed directly, we have found that the underlying operations can be monitored using noninvasive electrophysiological techniques. Results from two experiments showed that brain potentials elicited 500 to 900 ms after the onset of visually presented words vary systematically in amplitude with manipulations that influence the extent to which subjects engage in recollective processing. These brain potentials can thus be construed as correlates of the subjective experience of recollection     

PSYCHOTHERAPY AS PHASE-SPECIFIC INTERACTION

I am writing this paper to help myself, and hopefully some readers, to a better understanding of why some analysands in certain phases of the analysis develop the idea that they are homosexuals or that their analyst is homosexual. My basic thought is that even if these ideas have their individual roots and differ from case to case, they are also dependent on certain phenomena that are included in the analytic encounter and specified by different gender constellations constituting the analytic couple. I will present two examples from my own practice. From these two vignettes, I will draw some conclusions which are supported by my general psychoanalytic experience. The first example concerns male analysands. I have often seen male patients develop the fantasy that they “in reality” are homosexual. This fantasy is so common that it is a rule in my experience. I see it as a product of the fact that the psychoanalytic constellation consists, as in my case, of two men. The second example concerns female analysands. In a few cases with female analysands, I have seen the fantasy emerge that I, the analyst, am homosexual—a fantasy not seen in my male cases. Another difference is that I can't see this as a rule like the fantasy of the male analysands. In both the male and the female cases, I see the homosexual fantasies as a protection against discovery of the mother-transference to me. However, the fantasies have found different expressions depending on the specific gender constellation of the analytic couple: man and man and woman and man, respectively.     

Vantage point in episodic memory

University undergraduates undertook a series of manual tasks (e.g., shaping objects out of clay) and later recalled the experiences they had while doing so from either afield or anobserver vantage point. In the former case, the subjects mentally reinstated the original task environment as if they were seeing it again through their own eyes; in the latter condition, the original task environment was envisioned from the perspective of a detached spectator. Analysis of the subjects’ recollections revealed marked differences in the contents of field and observer memories. For instance, whereas field memories afforded richer accounts of the affective reactions, physical sensations, and psychological states that the subjects experienced as they performed the tasks, observer memories included more information about how the subjects looked, what they did, or where things were. Discussion focuses on prospects for future research whose aim would be to investigate the forensic and clinical implications of the field/observer distinction.     

Comparison of infant and adult P300 from auditory stimuli.

Event-related brain potentials (ERPs) using auditory stimuli were recorded from 5- to 10-month-old infants and normal young adults with a passive tone sequence paradigm. A P3 (P300) component was obtained which demonstrated the same central-parietal maximum scalp distribution for both subject groups. P3 amplitude was smaller and its peak latency longer for infants compared to those of the adults across all electrode sites. P3 measures remained stable across stimulus trials indicating that ERP habituation was not occurring. Evaluation of individual subjects suggests that the P3 can be elicited from infants with auditory stimuli in a manner similar to that from adults and may serve as a useful index for the assessment of cognitive function in infants.     

Vantage point in traumatic memory

Abstract— Persons with posttraumatic stress disorder (PTSD) spontaneously recalled the traumatic event that led to their condition from either a field or an observer vantage point. In the former case, participants recollected the event as if they were seeing it again through their own eyes; in the latter case, the event was recalled from the perspective of a detached spectator. Analysis of the two types of recollections revealed marked differences in their contents. Whereas field memories afforded richer accounts of the affective reactions, somatic sensations, and psychological states that participants experienced during the focal trauma, observer memories contained more information about participants' physical appearance and actions and the spatial layout of the traumatic scene. Observer trauma memories were also experienced as less emotional and anxiety provoking than field trauma memories. The discussion focuses on the clinical implications of these findings and prospects for future research on traumatic memory.