On the recognition of emotional vocal expressions: motivations for a holistic approach

Human beings seem to be able to recognize emotions from speech very well and information communication technology aims to implement machines and agents that can do the same. However, to be able to automatically recognize affective states from speech signals, it is necessary to solve two main technological problems. The former concerns the identification of effective and efficient processing algorithms capable of capturing emotional acoustic features from speech sentences. The latter focuses on finding computational models able to classify, with an approximation as good as human listeners, a given set of emotional states. This paper will survey these topics and provide some insights for a holistic approach to the automatic analysis, recognition and synthesis of affective states.     

Executive functions,impulsivity, and inhibitory control in adolescents: A structural equation model

Background. Adolescence represents a critical period for brain development, addressed by neurodevelopmental models to frontal, subcortical-limbic, and striatal activation, a pattern associated with rise of impulsivity and deficits in inhibitory control. The present study aimed at studying the association between self-report measures of impulsivity and inhibitory control with executive function in adolescents, employing structural equation modeling. Method. Tests were administered to 434 high school students. Acting without thinking was measured through the Barratt Impulsiveness Scale and the Dickman Impulsivity Inventory, reward sensitivity through the Behavioral Activation System, and sensation seeking through the Zuckerman–Kuhlman–Aluja Personali- ty Questionnaire. Inhibitory control was assessed through the Behavioral Inhibition System. The performance at the Wisconsin Card Sorting Task indicated executive function. Three models were specified using Sample Covariance Matrix, and the estimated parameters using Maximum Likelihood. Results. In the final model, impulsivity and inhibitory control predicted executive function, but sensation seeking did not. The fit of the model to data was excellent. Conclusions. The hypothesis that inhibitory control and impulsivity are predictors of executive function was supported. Our results appear informative of the validity of self-report measures to examine the relation between impulsivity traits rather than others to regulatory function of cognition and behavior.     

Measuring the flashbulb-like nature of memories for private events: the flashbulb memory checklist

What do we remember following an emotionally charged event? The assessment of memory characteristics for an emotional event represents one of the most challenging issues in the domain of autobiographical memory. Literature of flashbulb memories (FBMs) provides a crucial contribution on this issue: Following an emotional and unexpected public event, people remember not only central details of the episode, but also irrelevant, peripheral and idiosyncratic details of the reception context in which they learned of the news. The present study was set up to assess the factorial structure (samples 1 and 2) and convergent validity (sample 2) of an FBM checklist, an instrument designed to measure Flashbulb-like features of memories for emotional private events. Factorial analyses account for an oblique two-factor solution – FBM Specificity and Confidence – while correlational analyses support the convergent validity of this instrument. Practical implications are discussed, especially for the credibility assessment of witnesses of emotional events in forensic settings.     

A new methodological approach to nonverbal behavior analysis in cultural perspective

The measurement of human behavior is a complex task, both for psychologists and human sciences researchers and with respect to technology, since advanced and sophisticated instruments may have to be implemented to manage the plurality of variables involved. In this article, an observational study is presented in which a quantitative procedure, theexternal variables method (Duncan & Fiske, 1977), was integrated with a structural analysis (Magnusson, 1993, 2000) in order to detect the hidden organization of nonverbal behavior in Italian and Icelandic interactions. To this aim, Theme software was introduced and employed. The results showed that both the frequency and the typology of gestures deeply change as a function of culture. Moreover, a high number of patterns was detected in both Italian and Icelandic interactions: They appeared to be complex sequences in which a huge number of events were constantly happening and recurring. In this domain, Theme software provides a methodological progression from the quantitative to the structural approach.     

Follow-up of a cross-national comparison on flashbulb and event memory for the September 11th attacks

Flashbulb memories are defined as vivid and long-lasting memories for the reception context of an important public event (Brown & Kulik, 1977). They are supposed to be triggered by both emotional reactions to the original event and rehearsal processes (Brown & Kulik, 1977; Finkenauer, Luminet, Gisle, El-Ahmadi, van der Linden, & Philippot, 1998; Neisser & Harsch, 1992). A test-retest design (21 vs 524 days after the event on average) was employed to assess flashbulb memory and event memory for the September 11th attacks and the impact of their emotional and rehearsal predictors in a sample of 985 respondents coming from six countries (i.e., Belgium, Italy, the Netherlands, Romania, Japan, and the USA). Results showed that national membership had a significant impact on event memory, and the emotional and rehearsal variables, but flashbulb memories for the September 11th attacks were found to be high and consistent across different countries. The implications of these findings for the debate about the nature and maintenance of flashbulb memories are discussed.     

Type or dimension? A taxometric investigation of flashbulb memories

Flashbulb memories (FBMs) have been defined as vivid and detailed memory of a reception context under which one first heard of a public and unexpected emotional event. One of the issues still open for research on FBMs is to understand whether this latent construct has to be conceptualised as a continuum with other autobiographical memories, or whether it represents a special cluster of memories. This theoretical distinction has some implications for the measurement of the phenomenon, that could be assessed by a dimensional or categorical (taxonic) model. The current study attempted to provide an empirical answer to the problem of FBM measurement, by adopting a taxometric analysis. The main strength of these analyses is to treat taxonic and dimensional models as two competing hypotheses and to evaluate the relative support for each of them. Taxometric analyses were applied to FBM data for the Pope's death, and results supported the taxonic structure of FBMs.     

Follow-up of a cross-national comparison on flashbulb and event memory for the September 11th attacks

Flashbulb memories are defined as vivid and long-lasting memories for the reception context of an important public event (Brown & Kulik, 1977). They are supposed to be triggered by both emotional reactions to the original event and rehearsal processes (Brown & Kulik, 1977; Finkenauer, Luminet, Gisle, El-Ahmadi, van der Linden, & Philippot, 1998; Neisser & Harsch, 1992). A test-retest design (21 vs 524 days after the event on average) was employed to assess flashbulb memory and event memory for the September 11th attacks and the impact of their emotional and rehearsal predictors in a sample of 985 respondents coming from six countries (i.e., Belgium, Italy, the Netherlands, Romania, Japan, and the USA). Results showed that national membership had a significant impact on event memory, and the emotional and rehearsal variables, but flashbulb memories for the September 11th attacks were found to be high and consistent across different countries. The implications of these findings for the debate about the nature and maintenance of flashbulb memories are discussed.     

Boredom in Recovery for Adult Substance Users With HIV/AIDS Attending an Urban Day Treatment Program

This qualitative dissertation study used grounded theory methods to explore the experience of boredom in recovery from substance use disorder with eight adults who also have HIV/AIDS. Boredom is the pervasive perception of nothingness that gives time to reflect. Boredom was revealed to be more than a seemingly harmless phenomenon that persists decades into recovery, even when meaningful occupation outside of substance use is achieved. Boredom becomes less harmful with the achievement of meaningful occupation, but it is still tenacious and deleterious. Boredom can be useful to an adult with HIV/AIDS, however. Implications for the profession's core value of meaningfulness are discussed.     

Emotional discussions reduce memory recall

People often discuss events they have seen and these discussions can influence later recollections. We investigated the effects of factual, emotional, and free retelling discussion on memory recollections of individuals who have witnessed an event. Participants were shown a video, made an initial individual recall, participated in one of the three retelling conditions (emotional versus factual versus free) or a control condition, and then recalled the event individually again. Participants in the factual and free retelling conditions reported more items not previously recalled than participants in the control condition did, while the emotional condition did not show the same advantage. Participants in all three retelling conditions failed to report more previously recalled items as compared with the control condition. Finally, a memory conformity effect was observed for all three retelling conditions. These findings suggest that eyewitnesses’ discussions may influence the accuracy of subsequent memory reports, especially when these discussions are focused on emotional details and thoughts.     

The nature and severity of cognitive impairment associated with adjuvant chemotherapy in women with breast cancer: a meta-analysis of the current literature

OBJECTIVE: Several studies have identified that adjuvant chemotherapy for breast cancer is associated with cognitive impairment; however, the magnitude of this impairment is unclear. This study assessed the severity and nature of cognitive impairment associated with adjuvant chemotherapy by conducting a meta-analysis of the published literature to date. METHOD: Six studies (five cross-sectional and one prospective) meeting the inclusion criteria provided a total of 208 breast cancer patients who had undergone adjuvant chemotherapy, 122 control participants and 122 effect sizes (Cohen's d) falling into six cognitive domains. First, the mean of all the effect sizes within each cognitive domain was calculated (separately for cross-sectional and prospective studies); second, a mean effect size was calculated for all of the effect sizes in each cross-sectional study; and third, regression analyses were conducted to determine any relationships between effect size for each study and four different variables. RESULTS: For the cross-sectional studies, each of the cognitive domains assessed (besides attention) showed small to moderate effect sizes (-0.18 to -0.51). The effect sizes for each study were small to moderate (-0.07 to -0.50) and regression analysis detected a significant negative logarithmic relationship (R2 = .63) between study effect size and the time since last receiving chemotherapy. For the prospective study, effect sizes ranged from small to large (0.11-1.09) and indicated improvements in cognitive function from the beginning of chemotherapy treatment to 3 weeks and even 1 year following treatment. CONCLUSION: This meta-analysis suggests that cognitive impairment occurs reliably in women who have undergone adjuvant chemotherapy for breast cancer but that the magnitude of this impairment depends on the type of design that was used (i.e., cross-sectional or prospective). Thus, more prospective studies are required before definite conclusions about the effects of adjuvant chemotherapy on cognition can be made.