Serial position effects in 2-alternative forced choice recognition: Functional equivalence across visual and auditory modalities

Two experiments examined Ward, Avons, and Melling's (2005) proposition that the serial position function is task, rather than modality, dependent. Specifically, they proposed that for backward testing the 2-alternative forced-choice (2AFC) recognition paradigm is characterised by single-item recency irrespective of the modality of the stimulus presentation. In Experiment 1 the same nonword sequences, presented both visually or auditorily, produced qualitatively equivalent serial position functions with 2AFC testing. Forward testing produced a flat serial position function, while backward testing produced two-item recency in the absence of primacy. In order to rule out the possibility that the serial position functions for visual stimuli were the product of sub-vocal rehearsal, Experiment 2 employed articulatory suppression during the presentation phase. Serial position function equivalence was again observed together with a modest impairment in overall recognition rates. Taken together, these data are consistent with the Ward et al. proposition and further support the existence of a visual memory that can facilitate storage of visual-verbal material (e.g. Logie, Della Sella, Wynn, & Baddeley, 2000). However, the observation of two-item recency contradicts the original duplex account of single-item recency traditionally observed for backwards recognition testing of visual stimuli (Phillips & Christie, 1977).     

Concreteness effects revisited: The influence of dynamic visual noise on memory for concrete and abstract words

Two experiments are presented that investigate the effects of dynamic visual noise (DVN) on memory for concrete and abstract words. Memory for concrete words is typically superior to that of abstract words and is referred to as the concreteness effect. DVN is a procedure that has been demonstrated to interfere selectively with visual working memory and the generation of images from long-term memory. It was reasoned that if concreteness effects arise because of the ability of the latter to activate visual representations, then DVN should selectively impair memory for concrete words. Experiment 1 found DVN to selectively reduce free recall of concrete words. Experiment 2 investigated recognition memory and found DVN to reduce memory accuracy and remember responses, while increasing know responses to concrete words.     

The costs and benefits of testing text materials

Tests have been shown to improve the later recall of tested information, a result known as the testing effect. Tests, however, can also impair the later recall of related information, an effect known as retrieval-induced forgetting. Although retrieval-induced forgetting has been demonstrated using a wide variety of materials, recent work suggests that learning information in the context of a coherent text passage may afford protection from retrieval-induced forgetting. In four experiments we explored the conditions under which retrieval-induced forgetting does and does not occur with such materials. We found that two factors—the coherence of the to-be-learned material and the competitiveness of retrieval practice—are important in determining whether retrieval-induced forgetting does or does not occur. Furthermore, even if retrieval-induced forgetting does occur, having the opportunity to restudy the forgotten information can prevent that forgetting from persisting. Taken together, these findings provide greater understanding of the costs and benefits of testing text materials, with possible implications for the optimisation of testing as a tool for learning in educational contexts.     

Serial-position effects for items and relations in short-term memory

Two experiments used immediate probed recall of words to investigate serial-position effects. Item memory was tested through probing with a semantic category. Relation memory was tested through probing with the word's spatial location of presentation. Input order and output order were deconfounded by presenting and probing items in different orders. Primacy and recency effects over input position were found for both item memory and relation memory. Both item and relation memory declined over output position. The finding of a U-shaped input position function for item memory rules out an explanation purely in terms of positional confusions (e.g., edge effects). Either these serial-position effects arise from variations in the intrinsic memory strength of the items, or they arise from variations in the strength of item–position bindings, together with retrieval by scanning.     

Redundancy effects in the perception and memory of visual objects

Is visual representation of an object affected by whether surrounding objects are identical to it, different from it, or absent? To address this question, we tested perceptual priming, visual short-term, and long-term memory for objects presented in isolation or with other objects. Experiment 1 used a priming procedure, where the prime display contained a single face, four identical faces, or four different faces. Subjects identified the gender of a subsequent probe face that either matched or mismatched with one of the prime faces. Priming was stronger when the prime was four identical faces than when it was a single face or four different faces. Experiments 2 and 3 asked subjects to encode four different objects presented on four displays. Holding memory load constant, visual memory was better when each of the four displays contained four duplicates of a single object, than when each display contained a single object. These results suggest that an object's perceptual and memory representations are enhanced when presented with identical objects, revealing redundancy effects in visual processing.     

Attentional attraction of receptive fields can explain spatial and temporal effects of attention

A multitude of attentional effects were found at both the neural and behavioural levels of perception; however, the nature of the attentional mechanism is an unsettled issue. It is typically assumed that the fundamental impact of attention is enhancement of neuronal responses, but some attentional effects are difficult to explain by such gain modulations. Here we offer a different view: We suggest that the most fundamental impact of attention is the attraction (shift) of receptive fields towards the attended location. We further show, both conceptually and by model simulations, that this attraction of receptive fields can explain a diverse range of attentional effects, spatial as well as temporal, linking physiological measurements at the unit level with psychophysical observations (e.g., enhanced contrast sensitivity, enhanced spatial resolution, the Mexican-hat profile of attention, prolonged perceived duration, prior entry, degraded temporal resolution).     

Ex cathedra : Teaching,transference and knowledge 1

This paper explores the ex cathedra effect in psychoanalysis. It starts with the impact of the analyst's chair (cathedra) on the ‘knowledge’ derived from the analytic exchange–in particular, the structural alignment between the analyst and the client, and the ex cathedra authority transferred to analytic interpretations. It is argued that this authority–and the compulsion to ‘know’ that underlies it–is inevitably subverted by the unconscious processes it attempts to capture (through knowledge), in particular by transference, whose embossed and hollowed out forms, and various contusive elaborations (the bezoaric, caddis, karaoke and medusa effects), vitiate the linearity and closure of a set cognitive system (knowledge). The paper then moves on to examine how this ex cathedra effect has impacted on teaching–the transferral of this knowledge in trainings, notably in universities, where psychoanalysis has become a ‘discipline’, and how transference effects have inevitably and variously subverted (some may say corrupted) the teaching process. In particular, it suggests that the academic validation of clinical trainings hides an ex cathedra dogmatism–a pretence of formal knowledge and critical assessment which forecloses creative engagement with the unconscious.     

The Symbolic Object

Abstract

The term “symbolic object” is introduced as a way to understand the moments between analyst and patient where “something” new and dynamic emerges within the dyadic relationship. The symbolic object is the bridge between the idealized, all-good object and symbolization proper. The intrapsychic atmosphere between self and object representations is in a relatively non-conflicted state during this process. By reformulating the Nirvana principle and the principle of constancy as ways in which the organism economically strives for the most organized and homoeostatic state possible, the infant or adult can be seen to be searching for the position of lowest unpleasure possible. This is the optimum balance between the libidinal and aggressive forces in the self and object representational field. These moments of “truce” between often highly conflicted phantasies usher in a more refined use of projective identification as a form of intrapsychic/interpersonal communication. This is a particular atmosphere from which both parties, within the projective/introjective, back-and-forth dyadic world, can begin to co-create and rediscover assorted amalgams of self and object functioning. This newly awakened psychic entity is the symbolic object. This outgrowth of something fresh to the dyadic orbit is a mutative moment that propels the relationship into a different direction. Within the pairing of minds, a novel and mutual understanding is produced. Both parties share this new symbolic object and each is shaped by it.     

Parent-Child Psychotherapy: A Follow-Up Study Comparing Two Techniques

The “lost letter technique” was validated against actual election returns in two randomly selected precincts in Greensboro, North Carolina. The technique was not successful in predicting the outcome of the presidential race. It was found that letters addressed to The Health Research Center were significantly more likely to be returned than letters addressed to presidential candidates. This indicated that the failure to predict was due either to voter apathy in this particular election or to an active dislike of both candidates.