Shahar Tal

The EU-Emotion Stimulus Set: A validation study.

The EU-Emotion Stimulus Set is a newly developed collection of dynamic multimodal emotion and mental state representations. A total of 20 emotions and mental states are represented through facial expressions, vocal expressions, body gestures and contextual social scenes. This emotion set is portrayed by a multi-ethnic group of child and adult actors. Here we present the validation results, as well as participant ratings of the emotional valence, arousal and intensity of the visual stimuli from this emotion stimulus set. The EU-Emotion Stimulus Set is available for use by the scientific community and the validation data are provided as a supplement available for download.

Speech, Emotion, Age, Language, Task, and Typicality: Trying to Disentangle Performance and Feature Relevance

The availability of speech corpora is positively correlated with typicality: The more typical the population is we draw our sample from, the easier it is to get enough data. The less typical the envisaged population is, the more difficult it is to get enough data. Children with Autism Spectrum Condition are atypical in several respect: They are children, they might have problems with an experimental setting where their speech should be recorded, and they belong to a specific subgroup of children. Thus we address two possible strategies: First, we analyse the feature relevance for samples taken from different populations, this is not directly improving performances but we found additional specific features within specific groups. Second, we perform cross-corpus experiments to evaluate if enriching the training data with data obtained from similar populations can increase classification performances. In this pilot study we therefore use four different samples of speakers, all of them producing one and the same emotion and in addition, the neutral state. We used two publicly available databases, the Berlin Emotional Speech database and the FAU Aibo Corpus, in addition to our own ASC-Inclusion database.

Embodied simulation in exposure-based therapies for posttraumatic stress disorder - a possible integration of cognitive behavioral theories, neuroscience, and psychoanalysis

Exposure to the trauma memory is the common denominator of most evidence-based interventions for posttraumatic stress disorder (PTSD). Although exposure-based therapies aim to change associative learning networks and negative cognitions related to the trauma memory, emotional interactions between patient and therapist have not been thoroughly considered in past evaluations of exposure-based therapy. This work focuses on recent discoveries of the mirror-neuron system and the theory of embodied simulation (ES). These conceptualizations may add a new perspective to our understanding of change processes in exposure-based treatments for PTSD patients. It is proposed that during exposure to trauma memories, emotional responses of the patient are transferred to the therapist through ES and then mirrored back to the patient in a modulated way. This process helps to alleviate the patients sense of loneliness and enhances his or her ability to exert control over painful, trauma-related emotional responses. ES processes may enhance the integration of clinical insights originating in psychoanalytic theories—such as holding, containment, projective identification, and emotional attunement—with cognitive behavioral theories of learning processes in the alleviation of painful emotional responses aroused by trauma memories. These processes are demonstrated through a clinical vignette from an exposure-based therapy with a trauma survivor. Possible clinical implications for the importance of face-to-face relationships during exposure-based therapy are discussed.

The EU-Emotion Voice Database

In this study, we report the validation results of the EU-Emotion Voice Database, an emotional voice database available for scientific use, containing a total of 2,159 validated emotional voice stimuli. The EU-Emotion voice stimuli consist of audio-recordings of 54 actors, each uttering sentences with the intention of conveying 20 different emotional states (plus neutral). The database is organized in three separate emotional voice stimulus sets in three different languages (British English, Swedish, and Hebrew). These three sets were independently validated by large pools of participants in the UK, Sweden, and Israel. Participants’ validation of the stimuli included emotion categorization accuracy and ratings of emotional valence, intensity, and arousal. Here we report the validation results for the emotional voice stimuli from each site and provide validation data to download as a supplement, so as to make these data available to the scientific community. The EU-Emotion Voice Database is part of the EU-Emotion Stimulus Set, which in addition contains stimuli of emotions expressed in the visual modality (by facial expression, body language, and social scene) and is freely available to use for academic research purposes.