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Affective picture modulation : Valence, arousal, attention allocation and motiv...
Leite, Jorge; Carvalho, Sandra; Galdo-Álvarez, Santiago; Alves, Jorge; Sampaio, Adriana; Gonçalves, Óscar F.The present study analyses the modulatory effects of affective pictures in the early posterior negativity (EPN), the late positive potential (LPP) and the human startle response on both the peripheral (eye blink EMG) and central neurophysiological levels (Probe P3), during passive affective pictures viewing. The affective pictures categories were balanced in terms of valence (pleasant; unpleasant) and arousal (...
The emotional movie database (EMDB) : a self-report and psychophysiological study
Carvalho, Sandra; Leite, Jorge; Galdo-Álvarez, Santiago; Gonçalves, Óscar F.Film clips are an important tool for evoking emotional responses in the laboratory. When compared with other emotionally potent visual stimuli (e.g., pictures), film clips seem to be more effective in eliciting emotions for longer periods of time at both the subjective and physiological levels. The main objective of the present study was to develop a new database of affective film clips without auditory content...
Psychophysiological correlates of sexually and non-sexually motivated attention...
Carvalho, Sandra; Leite, Jorge; Galdo-Álvarez, Santiago; Gonçalves, Óscar F.Some authors have speculated that the cognitive component (P3) of the Event-Related Potential (ERP) can function as a psychophysiological measure of sexual interest. The aim of this study was to determine if the P3 ERP component in a workload task can be used as a specific and objective measure of sexual motivation by comparing the neurophysiologic response to stimuli of motivational relevance with different le...
Abnormal processing of emotional prosody in Williams syndrome : an event-relate...
Pinheiro, Ana P.; Galdo-Álvarez, Santiago; Rauber, Andréia Schurt; Sampaio, Adriana; Niznikiewicz, Margaret; Gonçalves, Óscar F.Williams syndrome (WS), a neurodevelopmental genetic disorder due to a microdeletion in chromosome 7, is described as displaying an intriguing socio-cognitive phenotype. Deficits in prosody production and comprehension have been consistently reported in behavioral studies. It remains, however, to be clarified the neurobiological processes underlying prosody processing in WS. This study aimed at characterizing t...
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