Is it relevant? Influence of trial manipulations of prospective memory context on task interference

The effects of blocked versus mixed presentation were tested on visual feature binding, assuming that blocked presentation enhances focused attention, whilst mixed presentation recruits extra attentional resources for intratrial as well as intertrial processing. The contextual interference effect suggests that although performance due to mixed presentation is either similar or worse than blocked presentation when tested immediately, it is better when tested after an interval. We explored whether this robust empirical effect, common in psychomotor performance, would be evident in visual feature binding. Stimuli were conjunctions of shape, colour, and location. Study–test intervals from 0 to 2,500 ms were used with a swap detection task. In Experiments 1A and 1B, participants ignored locations to detect shape–colour bindings. In Experiments 2A and 2B, they ignored shapes to detect colour–location binding. In Experiments 3A and 3B, they ignored colours to detect shape–location bindings. Whilst Experiments 1A, 2A, and 3A used blocked presentation, Experiments 1B, 2B, and 3B used mixed presentation of study–test intervals. The results of these experiments and a replication experiment using a within-subjects design showed that the contextual interference effect appeared when spatial attention was engaged, but not when attention was object based.     

Irreversibility of time and ontopotentiality of signs

Abstract

Time plays the central role in any developmental system. Its irreversibility contrasts with the functioning of the psychological realm that attempts to stabilize the real flow by means of perception/action constancies and signs. Efforts of apprehending the possible events of the next moment in ordinary life are paralleled by the focus on prediction in psychology as science. Signs operate as tools for reduction of the uncertainty of the immediate future. The notion of ontopotentiality of signs is introduced—it is the set of possibilities for creating quasi-stable meanings that would direct the flow of personal experiencing (in time) in a specific direction. This perspective advances further the notion of presentation (Vorstellung) that was worked through within the Brentano-Meinong tradition in philosophy and psychology. Narratives—and their corresponding notion of narrating—constitute macro-level stabilizing devices for individuals coping with uncertainty.     

Development and validation of a facial expression database based on the dimensional and categorical model of emotions

ABSTRACT

The present study describes the development and validation of a facial expression database comprising five different horizontal face angles in dynamic and static presentations. The database includes twelve expression types portrayed by eight Japanese models. This database was inspired by the dimensional and categorical model of emotions: surprise, fear, sadness, anger with open mouth, anger with closed mouth, disgust with open mouth, disgust with closed mouth, excitement, happiness, relaxation, sleepiness, and neutral (static only). The expressions were validated using emotion classification and Affect Grid rating tasks [Russell, Weiss, & Mendelsohn, 1989. Affect Grid: A single-item scale of pleasure and arousal. Journal of Personality and Social Psychology, 57(3), 493–502]. The results indicate that most of the expressions were recognised as the intended emotions and could systematically represent affective valence and arousal. Furthermore, face angle and facial motion information influenced emotion classification and valence and arousal ratings. Our database will be available online at the following URL. https://www.dh.aist.go.jp/database/face2017/.     

Mood-congruent perceptions of success depend on self-other framing

Research on self-other framing suggests that self-judgements typically neglect information about others and instead use an ambiguous intrapersonal standard, making these judgements susceptible to the influence of mood as predicted by the affect infusion model (Forgas, 1995). Two experiments tested the hypothesis that mood-congruent judgements of personal success occur when these judgements are framed to maintain self-focus but are eliminated when participants first focus on other individuals. In Experiment 1, self-other framing moderated the influence of mood on perceived success for an ambiguous object identification task. Happy participants reported greater perceived success, compared to sad participants, after judging their own success relative to others (self-focused frame) but not after directly judging the success of others (other-focused frame). Experiment 2 replicated these results with students' perceptions of their academic success. These findings suggest that the open, constructive processing accompanying most self-judgements is critical in producing mood-congruent perceptions of personal success.     

Violations of Fitts’ Law in a Ballistic Task

ABSTRACT

The authors explored changes in the postural preparation and movement times during jumps into targets of different sizes placed at different distances from the participant. Both movement and preparation times scaled with movement distance. Neither movement nor preparation time showed an effect of target size, although preparation time showed a tendency to increase for smaller targets. These observations show that the classical Fitts’ law can be violated in tasks that involve a ballistic component. The data corroborate a hypothesis that Fitts’ law originates at the level of movement planning.     

The Effects of Objectives and Constraints on Motor Control Strategy in Reciprocal Aiming Movements

The goal of this study was to examine how the kinematics of reciprocal aiming movements were affected by both the objective of the movement and the constraints operating on that movement. In Experiment 1, the objective of the movement was indirectly manipulated by capitalizing on the fact that subjects determine their own accuracy and speed limits, despite uniform task instructions to move as quickly and accurately as possible. A Fitts' type reciprocal aiming paradigm was employed, in which 69 subjects were asked to move a stylus repetitively between two spatially separated targets. Four target widths were orthogonally combined with four movement amplitudes, resulting in 16 conditions. Movements were made on an X-Y digitizing tablet. Based on the mean variable error produced on both targets, subjects were differentiated post hoc into three movement objective groups: speed, accuracy, and speed-plus-accuracy. Kinematic analyses revealed that the programming and execution of movements were systematically influenced by both the movement objective and the movement constraints. That is, movement time, peak velocity, dwell time, acceleration and deceleration time, normalized acceleration and normalized deceleration varied systematically as a function of both the speed-accuracy movement objective and the movement constraints of target size and movement distance. Moreover, the consequences of changing the constraints of the movement were affected by an interaction with the objective of the movement. In Experiment 2, the objective of the movement was directly manipulated by varying speed and/or accuracy instructions to subjects. The basic results of Experiment 1 were substantiated. Overall, the results were consistent with the view that motor control is dependent upon sensory consequences.     

Understanding suicidal behaviour in young people referred to specialist CAMHS: a qualitative psychoanalytic clinical research project

A qualitative psychoanalytic clinical research project using a post-Kleinian contemporary approach was undertaken by a team of seven qualified and experienced child psychotherapists working in community Tier 3 Child and Adolescent Mental Health Services (CAMHS). A number of referred young people who deliberately harmed themselves or attempted suicide, who fulfilled the inclusion criteria and consented to participate, were offered an extended individual and family assessment. Grounded Theory analysis of the qualitative data led to the formulation of the Truth Danger Theory. Typical situations in which suicidal behaviour occurred were identified, including intergenerational confusion, neglect, physical and/or sexual abuse within the family, Oedipal conflict, maternal depression and families in which there was a chronically ill sibling. We found that there was a marked disparity between the young person's experience of relationships in the family and the family's own account of their situation, a fractured reality. This can be reflected in an incongruence in the young person's presentation, which may be misleading when assessing risk. The young person feels him/herself to be in a dead end from which there seems to be no escape. Self-harm, for some, contains this impossible dilemma (albeit pathologically) but when it does not, suicide may seem the only option. The Truth Danger Theory provides explanations and predictions for suicidal behaviour and has implications for clinical practice.     

Effects of processing speed on intelligence may be underestimated: Comment on Demetriou et al. (2013)

This commentary suggests ways to extend research by Demetriou et al. (2013), who may have underestimated the effects of processing speed on the development of intelligence. It argues that future research should consider variability in processing speed, complexity in speed tasks, and reaction times excluded from speed estimates.     

Consciousness wanted,attention found: Reasons for the advantage of the left visual field in identifying T2 among rapidly presented series

Everyday experience suggests that people are equally aware of events in both hemi-fields. However, when two streams of stimuli are rapidly presented left and right containing two targets, the second target is better identified in the left than in the right visual field.This might be considered evidence for a right-hemisphere advantage in generating conscious percepts. However, this putative asymmetry of conscious perception cannot be measured independently of participants’ access to their conscious percepts, and there is actually evidence from split-brain patients for the reverse, left-hemisphere advantage in having access to conscious percepts. Several other topics were studied in search of the responsible mechanism, among others: Mutual inhibition of hemispheres, cooperation of hemispheres in perceiving midline stimuli, and asymmetries in processing various perceptual inputs. Directing attention by salient cues turned out to be one of the few mechanisms capable of modifying the left visual-field advantage in this paradigm. Thus, this left visual-field advantage is best explained by the notion of a right-hemisphere advantage in directing attention to salient events. Dovetailing with the pathological asymmetries of attention after right-hemisphere lesions and with asymmetries of brain activation when healthy participants shift their attention, the present results extend that body of evidence by demonstrating unusually large and reliable behavioral asymmetries for attention-directing processes in healthy participants.