Pedro R Almeida

Pedro R Almeida
University of Porto | UP · School of Criminology, Faculty of Law

PhD

About

52
Publications
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536
Citations

Publications

Publications (52)
Chapter
With the massive change in the media broadcasting landscape, and in the way advertising space and sponsorship are sold, there is an opportunity to include the up-to-now intangible aspects of emotional activation as elements in the measurement and valuation of media properties. In this chapter, we illustrate the foundations of our approach to media...
Presentation
Several scandals have been damaging the reputation of some entrepreneurial initiatives. The present work is part of a study designed to prevent misconduct in entrepreneurship, supported by literature centered on entrepreneurship's potential damaging features prone to produce harmful outcomes and victims. This range of harmful consequences appears t...
Article
Entrepreneurs create businesses and employment. However, their behaviors might generate negative outcomes. Since external funding for startups is vital and challenging to get, this ecosystem becomes a breeding ground for unethical behaviors. This paper will explore the association between the tolerance to unethical behaviors and the Dark Triad Trai...
Article
Full-text available
The containment measures imposed during the first COVID-19 outbreak required economic, social, and behavioral changes to minimize the spread of the coronavirus. Some studies have focused on how personality predicts distinct patterns of adherence to protective measures with psychopathic and antisocial traits predicting reduced engagement in such mea...
Article
Full-text available
Callous-unemotional (CU) traits observed during childhood and adolescence are thought to be precursors of psychopathic traits in adulthood. Adults with high levels of psychopathic traits typically present antisocial behavior. Such behavior can be indicative of atypical moral processing. Evidence suggests that moral dysfunction in these individuals...
Article
Full-text available
Auditory event-related potentials (ERP) may serve as diagnostic tools for schizophrenia and inform on the susceptibility for this condition. Particularly, the examination of N1 and P2 components of the auditory ERP may shed light on the impairments of information processing streams in schizophrenia. However, the habituation properties (i.e., decrea...
Preprint
The behavioral and electrophysiological study of the emotional intensity of facial expressions of emotions has relied on image processing techniques termed ‘morphing’ to generate realistic facial stimuli in which emotional intensity can be manipulated. This is achieved by blending neutral and emotional facial displays and treating the percent of mo...
Presentation
In this presentation, the results of the first phase of MiscRisk (Risk for Misconduct in Entrepreneurship) project will be addressed. MiscRisk aims to prevent misconduct in entrepreneurship following the literature according to which entrepreneurship may have destructive features generating harmful consequences and victims, such as stakeholders and...
Presentation
Access to hard-to-reach samples is frequently difficult in criminological research. There are several challenges to reach populations such as people who perceive themselves as law-abiding citizens when asking about sensitive topics (deviant or criminal behaviors, victimization). In this presentation, methodological difficulties will be discussed, g...
Preprint
There is a large variety of context-related aspects that shape our decisions. One such aspect is related with the emotional state. Previous studies have suggested that emotional arousal has a role on the modulation of risk-taking behavior in gambling tasks. In this study, we aimed to test this hypothesis. For this purpose, we developed an experimen...
Article
The psychopathic traits boldness, meanness, and disinhibition are theorized to be underlined by trait fearlessness and externalizing vulnerability as etiologic neurobiological processes. However, little is known about the neurophysiological correlates of these traits. In this work, we explored how the three traits are associated with event-related...
Article
The Triarchic Measure of Psychopathy (TriPM) was developed to assess manifest expressions of biobehavioural liabilities relevant to psychopathy and other forms of mental illness. Psychometric findings have been examined for a number of international translations of the TriPM, but further work is needed to evaluate its cross-cultural applicability a...
Article
Full-text available
James One (MindProber Labs) is a wireless psychophysiological device comprising two sensors: one measuring electrodermal activity (EDA), the other photoplethysmography (PPG). This paper reports the validation of James One’s EDA sensor by comparing its signal against a research grade polygraph. Twenty participants were instructed to perform breathin...
Article
With respect to De Dreu and Gross's article, we comment on the psychological functions for attack and defense, focusing on associations between individual differences in psychopathic personality traits and the behavioral patterns observed in attack-defense conflicts. We highlight the dimensional nature of psychopathy and formulate hypothetical asso...
Presentation
The number of adults involved in early-stage entrepreneurship in Portugal has grown in recent years. In 2010 the prevalence was 4.4% and in 2015 was 9.5%. In 2012, the entrepreneurs´ rate on early-stage was 7.7% and Portugal was 7th in 24 innovative-oriented economies. The present study explores the relationship between entrepreneurship, personalit...
Preprint
Background: The search for autonomic correlates of emotional processing has been a matter of interest for the scientific community with the goal of identifying the physiological basis of emotion. Despite an extensive state-of-the-art exploring the correlates of emotion, there is no absolute consensus regarding how the body processes an affective st...
Preprint
Typicality, or averageness, is one of the key features that influences face evaluation, but the role of this property in the perception of facial expressions of emotions is still not fully understood. Typical faces are usually considered more pleasant and trustworthy, and neuroimaging results suggest typicality modulates amygdala and fusiform activ...
Article
Background and objectives: In spite of the existence of a multitude of techniques that allow the estimation of stress from physiological indexes, its fine-grained assessment is still a challenge for biomedical engineering. The short-term assessment of stress condition overcomes the limits to stress characterization with long blocks of time and all...
Article
Purpose Impaired emotional learning is one of the hallmark features of psychopathy. The abnormal processing of cues of reward and punishment, and its impact in decision‐making, has mostly been supported by laboratorial studies. In this report, we have analysed the effect of psychopathy in the formation of attitudes towards committing theft, and its...
Article
Heart rate variability (HRV) analysis has been used as a quantitative marker of the autonomous nervous system activity to measure mental stress. Wearable sensors have been emerging as a solution to collect HRV data for stress assessment in a real context, however such studies raise additional requirements. The wearable system must be minimally obtr...
Article
Full-text available
The idea that maladaptive stress impairs cognitive function has been a cornerstone of decades in basic and clinical research. However, disparate findings have reinforced the need to aggregate results from multiple sources in order to confirm the validity of such statement. In this work, a systematic review and meta-analyses were performed to aggreg...
Article
The Dark Triad is represented by three interrelated personality characteristics thought to share a “dark core”—that is, to be associated with a range of negative outcomes. We investigate this link alongside another potent predictor of crime, low self-control. Our analyses found the Dark Triad was strongly predictive of delinquency, especially viole...
Article
Findings concerning the emotional modulation of the N170 component of the visual event-related potential are mixed. In the present report we tested the hypothesis that the emotional modulation of the N170 may be driven by the perceived emotional arousal of the stimuli, rather than by specific emotional categories. Fifty-four participants viewed fac...
Article
In the present report we analyzed the associations between the facets of the recent Triarchic Measure of Psychopathy (TriPM) and distinct dimensions of empathy, morality, and antisocial behavior. Three hundred and seventy-four participants from the community completed the TriPM, the Interpersonal Reactivity Index and the Moral Foundations Questionn...
Conference Paper
Full-text available
Wearable technology has seen substantial advances in recent years, mainly triggered by the need for noninvasive ways to monitor physiological signals outside the lab, in ecological/naturalistic context. In this study, the Zephyr HxM system, a wearable heart rate monitor, was used, in 12 volunteers during the Trier Social Stress Test (TSST). The mai...
Conference Paper
Over time, media portrayals of psychopaths have shown to correspond to certain stereotypes, making them out to resemble more fictional characters such as Hannibal Lecter or Dexter than actual everyday people. These stereotypes are based on distorted views of the original Cleckley criteria and Hare’s work on criminal psychopaths. Current literature...
Article
The literature suggests that the N1 and P2 waves of the auditory ERP are dissociable at the developmental, experimental, and source levels. At the experimental level, inconsistent findings suggest different effects of intensity on the amplitudes of the auditory N1 and P2. Our main goal was to analyze the intensity dependence of the auditory N1 and...
Article
Full-text available
Research suggests psychopathy is associated with structural brain alterations that may contribute to the affective and interpersonal deficits frequently observed in individuals with high psychopathic traits. However, the regional alterations related to different components of psychopathy are still unclear. We used voxel-based morphometry to charact...
Conference Paper
Full-text available
As the brain ages, it suffers several neurochemical, structural and functional changes. These deficits are primarily reflected on daily memory tasks. In the present work, we use the Wisconsin Card Sorting Task (WCST) task to assess P300 component of the event-related potential (ERP) as a marker for aging. Considering age-related effects, WCST was a...
Article
Study of emotional responses of antisocial individuals has produced inconsistent findings. Some studies report emotional deficits, while others find no differences between people with and without antisocial behaviours. Our aim was to apply signal detection theory methods to compare the sensitivity of antisocial and control participants to emotional...
Article
The N1 and P2 components of the event-related potential are relevant markers in the processing of auditory information, indicating the presence of several acoustic phenomena, such as pure tones or speech sounds. In addition, the expression of these components seems to be sensitive to diverse experimental variations. The main purpose of the present...
Conference Paper
Public speaking is a widely requested professional skill, and at the same time an activity that causes one of the most common adult phobias (Miller and Stone, 2009). It is also known that the study of stress under laboratory conditions, as it is most commonly done, may provide only limited ecological validity (Wilhelm and Grossman, 2010). Previousl...
Article
This study examined the relation between psychopathic traits and the brain response to facial emotion by analyzing the N170 component of the ERP. Fifty-four healthy participants were assessed for psychopathic traits and exposed to images of emotional and neutral faces with varying spatial frequency content. The N170 was modulated by the emotional e...
Conference Paper
Full-text available
Emotional stress is commonly experienced while speaking in public, producing changes to the various speech productions subsystems, affecting the speech signal in predictable ways and being easily conveyed to listeners. Speech stress indicators, however, are typically studied under laboratory settings, allowing little generalization to real life set...
Article
Full-text available
Psychopathic traits affect social functioning and the ability to make adaptive decisions in social interactions. This study investigated how psychopathy affects the neural mechanisms that are recruited to make decisions in the ultimatum game. Thirty-five adult participants recruited from the community underwent functional magnetic resonance imaging...
Article
Conflicting reports of P200 amplitude and latency in schizophrenia have suggested that this component is increased, reduced or does not differ from healthy subjects. A systematic review and meta-analysis were undertaken to accurately describe P200 deficits in auditory oddball tasks in schizophrenia. A systematic search identified 20 studies which w...
Article
This study investigated the time-frequency dynamics of P300 generation in patients with first-onset schizophrenia. A group of 40 patients with first-onset schizophrenia and 40 controls performed an auditory oddball task. Wavelet analysis of the single-trial data was used to compute the Event-Related Spectral Perturbation (ERSP) and the Inter-Trial...
Conference Paper
Full-text available
Attention Allocation to 3D Emotional Visual Scenes as Revealed by P3 Amplitude and Power Spectral Analysis Joana B. Vieiraa, Luís Monteirob, Fernando Barbosaa, Jorge Silvérioc, Pedro R. Almeidaa & João Marques-Teixeiraa aLaboratory of Neuropsychophysiology, Faculty of Psychology and Educational Sciences, University of Porto b Instituto Superior...
Article
Background/Objective Despite the well established genetic basis of schizophrenia, the relationship between genes and the disorder itself is still elusive. Individual endophenotypes, which reduce the complexity of genetic analyses, allow statistical approaches with quantitative trait methodologies. P200 abnormalities of event-related potentials have...
Article
Classic studies regarding emotional processing, either in normal subjects or in pathological groups, rely on the basic assumption of a linear correspondence between stimuli input and perceived emotional information. This neglects the evidence that different experimental groups may perceive the same stimuli features differently. Thus, when emotional...

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Projects

Projects (4)
Project
This research aims at developing risk assessment and situational intervention tools for screening and preventing misconduct in entrepreneurship. Considering the relevance of entrepreneurship on economic growth, this project intends to assess, describe and prevent misconduct committed by entrepreneurs. Such approach considers the interaction between personality characteristics of the entrepreneur and organizational environment. While these behaviours are not considered crime, they have been considered as misconduct producing externalities, endangering business moral environment, trust of stakeholders, investors, and consumers. The project will create a "Misconduct in Entrepreneurship Scale", correlating personality profiles and endorsement of misconduct among a sample of entrepreneurs. Measures of organizational culture, including ethical climate and prevention of misconduct, will be assessed. Intervention mechanisms for prevention of misconduct in entrepreneurship will be created. More information at: https://miscrisk.org
Archived project
This project aims at translating and validating the CAPP for the Portuguese population.