Semantic interference from visual object recognition on visual imagery

A new technique for examining the interaction between visual object recognition and visual imagery is reported. The "image-picture interference" paradigm requires participants to generate and make a response to a mental image of a previously memorized object, while ignoring a simultaneously presented picture distractor. Responses in 2 imagery tasks (making left-right higher spatial judgments and making taller-wider judgments) were longer when the simultaneous picture distractor was categorically related to the target distractor relative to unrelated and neutral target-distractor combinations. In contrast, performance was not influenced in this way when the distractor was a related word, when a semantic categorization decision was made to the target, or when distractor and target were visually but not categorically related to one another. The authors discuss these findings in terms of the semantic representations shared by visual object recognition and visual imagery that mediate performance.     

Covariance structure of neuroticism and agreeableness: a twin and molecular genetic analysis of the role of the serotonin transporter gene

The Revised NEO Personality Inventory domains of Neuroticism and Agreeableness are considered factorially distinct despite several intercorrelations between these domains. The genetic correlation, an index of the degree to which these intercorrelations are caused by genetic influences, was estimated using data from 913 monozygotic and 562 dizygotic volunteer twin pairs from Canada, Germany, and Japan. The serotonin transporter gene, 5-HTTLPR, was assayed in a sample of 388 nontwin sibling pairs from the United States to determine the contribution of the serotonin transporter locus to the covariation between the Neuroticism and Agreeableness scales. In all four samples, genetic influences contributed to the covariance of Neuroticism and Agreeableness, with the serotonin transporter gene accounting for 10% of the relationship between these domains.     

Evidence for spontaneous serial refreshing in verbal working memory?

Working memory (WM) keeps information temporarily accessible for ongoing cognition. One proposed mechanism to keep information active in WM is refreshing. This mechanism is assumed to operate by bringing memory items into the focus of attention, thereby serially refreshing the content of WM. We report two experiments in which we examine evidence for the spontaneous occurrence of serial refreshing in verbal WM. Participants had to remember series of red letters, while black probe letters were presented between these memory items, with each probe to be judged present in or absent from the list presented so far, as quickly as possible (i.e., the probe–span task). Response times to the probes were used to infer the status of the representations in WM and, in particular, to examine whether the content of the focus of attention changed over time, as would be expected if serial refreshing occurs spontaneously during inter-item pauses. In sharp contrast with this hypothesis, our results indicate that the last-presented memory item remained in the focus of attention during the inter-item pauses of the probe–span task. We discuss how these findings help to define the boundary conditions of spontaneous refreshing of verbal material in WM, and discuss implications for verbal WM maintenance and forgetting.     

Timed written picture naming in 14 European languages

We describe the Multilanguage Written Picture Naming Dataset. This gives trial-level data and time and agreement norms for written naming of the 260 pictures of everyday objects that compose the colorized Snodgrass and Vanderwart picture set (Rossion & Pourtois in Perception, 33, 217–236, 2004). Adult participants gave keyboarded responses in their first language under controlled experimental conditions (N = 1,274, with subsamples responding in Bulgarian, Dutch, English, Finnish, French, German, Greek, Icelandic, Italian, Norwegian, Portuguese, Russian, Spanish, and Swedish). We measured the time to initiate a response (RT) and interkeypress intervals, and calculated measures of name and spelling agreement. There was a tendency across all languages for quicker RTs to pictures with higher familiarity, image agreement, and name frequency, and with higher name agreement. Effects of spelling agreement and effects on output rates after writing onset were present in some, but not all, languages. Written naming therefore shows name retrieval effects that are similar to those found in speech, but our findings suggest the need for cross-language comparisons as we seek to understand the orthographic retrieval and/or assembly processes that are specific to written output.     

Decay theory of immediate memory: From Brown (1958) to today (2014)

This work takes a historical approach to discussing Brown's (1958) paper, “Some Tests of the Decay Theory of Immediate Memory”. This work was and continues to be extremely influential in the field of forgetting over the short term. Its primary importance is in establishing a theoretical basis to consider a process of fundamental importance: memory decay. Brown (1958) established that time-based explanations of forgetting can account for both memory capacity and forgetting of information over short periods of time. We discuss this view both in the context of the intellectual climate at the time of the paper's publication and in the context of the modern intellectual climate. The overarching theme we observe is that decay is as controversial now as it was in the 1950s and 1960s.     

Self‐rated personality and intelligence: a multivariate genetic analysis

The present study investigated the phenotypic, genetic, and environmental correlations between personality factors and measured intelligence. Twin pairs (92 monozygotic and 50 same sex dizygotic) completed 20 sets of personality adjectives in self‐report form as well as a group administered intelligence test, measuring general intelligence and verbal and performance composite scales. The personality adjectives were found to fit a five factor model. Personality aggregates were also created based on multiple regression analyses and used to predict each intelligence dimension. Triangular decompositions were computed to estimate the degree to which the phenotypic personality and intelligence relations were attributable to common genetic and/or environmental factors. Results of these analyses found small to moderate genetic and environmental correlations between intelligence and the personality factors, and moderate to high genetic correlations between intelligence and the personality aggregates, suggesting that intelligence is related to some personality traits at both the phenotypic and the genetic level. Copyright © 1999 John Wiley & Sons, Ltd.     

Proactive coping, gratitude, and posttraumatic stress disorder in college women

This study investigated relationships among proactive coping, positive emotions, and posttraumatic stress disorder (PTSD) symptom severity for 182 undergraduate women with trauma histories. Participants were administered the Life Events Checklist (LEC), PTSD Checklist, Proactive Coping Inventory, Proactive Attitude Scale, General Perceived Self-Efficacy Scale, and measures of posttrauma gratitude and emotional growth. An Exploratory Factor Analysis (EFA) with proactive coping, proactive attitude, and self-efficacy items indicated a one-factor solution. The proactive coping style factor and posttrauma gratitude were independently negatively associated with current PTSD symptom level, above and beyond the effects of trauma severity, trauma history, and time elapsed since the trauma. The implications of these results for future research and understanding of the development of PTSD and its treatment are discussed.     

Effects of Verbal Event Structure on Online Thematic Role Assignment

Event structure describes the relationships between general semantics (Aktionsart) of the verb and its syntactic properties, separating verbs into two classes: telic verbs, which denote change of state events with an inherent end-point or boundary (catch, rescue), and atelic, which refer to homogenous activities (tease, host). As telic verbs describe events, in which the internal argument (Patient) is affected, we hypothesized that processing of telic verb template would activate syntactic position of the Patient during sentence comprehension. Event-related brain potentials (ERPs) were recorded from 20 English speakers, who read sentences with reduced Object relative clauses, in which the verb was either telic or atelic. ERPs in relative clauses diverged on the definite article preceding the Agent: the atelic condition was characterized by larger amplitude negativity at the N100. Such processing differences are explained by activation of the syntactic position for the Patient by the event structure template of telic verbs.     

Emotional Reactions During and After Trauma: A Comparison of Trauma Types

Peri- and posttraumatic emotional responses have been understudied, and furthermore, have rarely been compared among trauma types. The current study compared college students' retrospective self-reports of peri- and posttraumatic responses of fear, shame, guilt, anger, and sadness among four types of traumatic events: sexual assault, physical assault, transportation accident, and illness/injury. Overall emotional responding was generally high for all trauma types, and for those in the sexual assault group, emotion increased sharply from the peri- to posttraumatic time point. Generally, fear was higher during the trauma compared to after the trauma, whereas the other emotions tended to remain stable or increase posttrauma. The sexual assault group tended to report higher levels of posttrauma emotion than the other trauma type groups.     

Recognition memory and awareness: A large effect of study-test modalities on “know” responses following a highly perceptual orienting task

Abstract

Two experiments investigated the effects of varying the correspondence between presentation and test modes on states of conscious awareness in recognition memory. Experiment 1 used visual test items and showed that auditory and visual study modes differentially affected recollective experience and feelings of familiarity assessed by “remember” and “know” responses accompanying recognition: “know” responses were slightly enhanced following visual presentation, but this was largely offset by a similarly small increase in “remember” responses. Experiment 2 employed conditions designed to maximise any effect on “know” responses of the correspondence between presentation and test modes by using a highly perceptual orienting task at study. Under these conditions, there was a large mode correspondence effect on “know” responses. The results support the idea that “know” responses are particularly sensitive to perceptual factors.