Integration of cognitive and affective processes in perception and decision-making

The relationship between emotion and cognition is a topic that raises great interest in research. Recently, a view of these two processes as interactive and mutually influencing each other has become predominant. This dissertation investigates the reciprocal influences of emotion and cognition, both at behavioral and neural level, in two specific fields, such as attention and decision-making. Experimental evidence on how emotional responses may affect perceptual and attentional processes has been reported. In addition, the impact of three factors, such as personality traits, motivational needs and social context, in modulating the influence that emotion exerts on perception and attention has been investigated. Moreover, the influence of cognition on emotional responses in decision-making has been demonstrated. The current experimental evidence showed that cognitive brain regions such as the dorsolateral prefrontal cortex are causally implicated in regulation of emotional responses and that this has an effect at both pre and post decisional stages. There are two main conclusions of this dissertation: firstly, emotion exerts a strong influence on perceptual and attentional processes but, at the same time, this influence may also be modulated by other factors internal and external to the individuals. Secondly, cognitive processes may modulate emotional prepotent responses, by serving a regulative function critical to driving and shaping human behavior in line with current goals.

When the Practice of Theorizing Meets the Theorizing of Practice. Social Knowledge Making in Organization Science Academia and Managerial Communities

The aim of the present work is to contribute to a better understanding of the relation between organization theory and management practice. It is organized as a collection of two papers, a theoretical and conceptual contribution and an ethnographic study. The first paper is concerned with systematizing different literatures inside and outside the field of organization studies that deal with the theory-practice relation. After identifying a series of positions to the theory-practice debate and unfolding some of their implicit assumptions and limitations, a new position called entwinement is developed in order to overcome status quo through reconciliation and integration. Accordingly, the paper proposes to reconceptualize theory and practice as a circular iterative process of action and cognition, science and common-sense enacted in the real world both by organization scholars and practitioners according to purposes at hand. The second paper is the ethnographic study of an encounter between two groups of expert academics and practitioners occasioned by a one-year executive business master in an international business school. The research articulates a process view of the knowledge exchange between management academics and practitioners in particular and between individuals belonging to different communities of practice, in general, and emphasizes its dynamic, relational and transformative mechanisms. Findings show that when they are given the chance to interact, academics and practitioners set up local provisional relations that enable them to act as change intermediaries vis-a-vis each other’s worlds, without tying themselves irremediably to each other and to the scenarios they conjointly projected during the master’s experience. Finally, the study shows that provisional relations were accompanied by a recursive shift in knowledge modes. While interacting, academics passed from theory to practical theorizing, practitioners passed from an involved practical mode to a reflexive and quasi-theoretical one, and then, as exchanges proceeded, the other way around.

Functional and neural mechanisms of intertemporal choice

People are daily faced with intertemporal choice, i.e., choices differing in the timing of their consequences, frequently preferring smaller-sooner rewards over larger-delayed ones, reflecting temporal discounting of the value of future outcomes. This dissertation addresses two main goals. New evidence about the neural bases of intertemporal choice is provided. Following the disruption of either the medial orbitofrontal cortex or the insula, the willingness to wait for larger-delayed outcomes is affected in odd directions, suggesting the causal involvement of these areas in regulating the value computation of rewards available with different timings. These findings were also supported by a reported imaging study. Moreover, this dissertation provides new evidence about how temporal discounting can be modulated at a behavioral level through different manipulations, e.g., allowing individuals to think about the distant time, pairing rewards with aversive events, or changing their perceived spatial position. A relationship between intertemporal choice, moral judgements and aging is also discussed. All these findings link together to support a unitary neural model of temporal discounting according to which signals coming from several cortical (i.e., medial orbitofrontal cortex, insula) and subcortical regions (i.e., amygdala, ventral striatum) are integrated to represent the subjective value of both earlier and later rewards, under the top-down regulation of dorsolateral prefrontal cortex. The present findings also support the idea that the process of outcome evaluation is strictly related to the ability to pre-experience and envision future events through self-projection, the anticipation of visceral feelings associated with receiving rewards, and the psychological distance from rewards. Furthermore, taking into account the emotions and the state of arousal at the time of decision seems necessary to understand impulsivity associated with preferring smaller-sooner goods in place of larger-later goods.

Scene di violenza, esperienze emotive e condotte aggressive

The aim of this research is to estimate the impact of violent film excerpts on university students (30 f, 30 m) in two different sequences, a “justified” violent scene followed by an “unjustified” one, or vice versa, as follows: 1) before-after sequences, using Aggressive behaviour I-R Questionnaire, Self Depression Scale and ASQ-IPAT Anxiety SCALE; 2) after every excerpt, using a self-report to evaluate the intensity and hedonic tone of emotions and the violence justification level. Emotion regulation processes (suppression, reappraisal, self-efficacy) were considered. In contrast with the “unjustified” violent scene, during the “justified” one, the justification level was higher; intensity and unpleasantness of negative emotions were lower. Anxiety (total and latent) and rumination diminished after both types of sequences. Rumination decreases less after the JV-UV sequence than after the UV-JV sequence. Self-efficacy in controlling negative emotions reduced rumination, whereas suppression reduced irritability. Reappraisal, self-efficacy in positive emotion expression and perceived emphatic selfefficacy did not have any effects.

Risk factors for postoperative delirium in the elderly

Background: Delirium is defined as an acute disorder of attention and cognition. Delirium is common in hospitalized elderly patient and is associated with increased morbidity, length of stay and patient care costs. Although Delirium can develop at any time during hospitalization, it typically presents early in the post-operative period (Post-Operative Delirium, POD) in the surgery context. The molecular mechanism and possible genetics basis of POD onset are not known, as well as all the risk factors are not completely defined. Our hypothesis is that genetic risk factor involving the inflammatory response could have possible effects on the immunoneuroendocrine system. Moreover, our previous data (inflamm-aging) suggest that aging is associated with an increase of inflammatory status, favouring age-related diseases such as neurodegenerative diseases, frailty, depression among other. Some pro-inflammatory or anti-inflammatory cytokines, seem to play a crucial role in increasing the inflammatory status and in the communication and regulation of immunoneuroendocrine system. Objective: this study evaluated the incidence of POD in elderly patients undergoing general surgery, clinical/physical and psychological risk factors of POD insurgency and investigated inflammatory and genetic risk factors. Moreover, this study evaluated the consequence of POD in terms of institutionalization, development of permanent cognitive dysfunction or dementia and mortality Methods: patients aged over 65 admitted for surgery at the Urgency Unit of S.Orsola-Malpighi Hospital were eligible for this case–control study. Risk factors significantly associated with POD in univariate analysis were entered into multivariate analysis to establish those independently associated with POD. Preoperative plasma level of 9 inflammatory markers were measured in 42 control subjects and 43 subjects who developed POD. Functional polymorphisms of IL-1 α , IL-2, IL-6, IL-8, IL-10 and TNF-alpha cytokine genes were determined in 176 control subjects and 27 POD subjects. Results: A total of 351 patients were enrolled in the study. The incidence of POD was 13•2 %. Independent variables associated with POD were: age, co-morbidity, preoperative cognitive impairment, glucose abnormalities. Median length of hospital stay was 21 days for patients with POD versus 8 days for control patients (P < 0•001). The hospital mortality rate was 19 and 8•4 % respectively (P = 0•021) and mortality rate after 1 year was also higher in POD (P= 0.0001). The baseline of IL-6 concentration was higher in POD patients than patients without POD, whereas IL-2 was lower in POD patients compared to patients without POD. In a multivariate analysis only IL-6 remained associated with POD. Moreover IL-6, IL-8 and IL-2 are associated with co-morbidity, intra-hospital mortality, compromised functional status and emergency admission. No significant differences in genotype distribution were found between POD subjects and controls for any SNP analyzed in this study. Conclusion: In this study we found older age, comorbidity, cognitive impairment, glucose abnormalities and baseline of IL-6 as independent risk factors for the development of POD. IL-6 could be proposed as marker of a trait that is associated with an increased risk of delirium; i.e. raised premorbid IL-6 level predict for the development of delirium.

Analisi della relazione tra temperamento, stati psicobiosociali e variabili psicofisiche rispetto ai diversi compiti e strategie metodologiche

L’attività fisica produce effetti benefici a livello mentale (Biddle et al.,2004) e sembra agire sull’emozione modificando attitudini e motivazioni verso la pratica motoria (Digelidis et al., 2003) a partire da sensazioni come il piacere o la noia del fare (Spray et al., 1999). Da questi presupposti il progetto che comprendeva l’analisi di due studi volti a verificare gli effetti dell’attività motoria e sportiva in ambito scolastico, sui comportamenti di adattamento sociale e self efficacy dei bambini. Un terzo studio, di analisi qualitativa, in ambito calcistico, per verificare correlazioni tra orientamento motivazionale genitoriale e comportamenti di adattamento sociale dei figli. Gli strumenti di rilevazione dei livelli di adattamento sociale (Caprara et al, 1992) e self efficacy (Colella, 2008), sono stati somministrati prima e dopo il trattamento delle relative attività motorie mentre, l’orientamento motivazionale dei genitori (Borgogni et al, 2004) è stato rilevato una volta e confrontato con l’adattamento sociale dei figli. Il modulatore del primo studio, l’attività ad alto contenuto emotivo o aggressivo, ha mostrato variazioni significative (p<.05) nei livelli di aggressività fisica-verbale e di comportamento pro sociale tra i 2 gruppi, confermando la letteratura sull’argomento (Pellegrini, in Storch e Roth, 2005; Vaughn, 2005; Tappern e Boulton, 2005). Il modulatore del secondo studio, rappresentato dal giocosport rugby, sempre realizzato nelle ore curricolari di educazione fisica, ha evidenziato differenze significative (p<.05) nell’aumentata self efficacy da parte del gruppo sperimentale, con effetto preponderante sulle femmine rispetto ai maschi. Il terzo studio, descrittivo, ha evidenziato la correlazione tra orientamento motivazionale dei genitori e instabilità emotiva dei figli in risposta a profili genitoriali tendenti alla leadership o al successo nell’ambito lavorativo. I risultati evidenziati mostrano effetti significativi (p<.05), successivi al trattamento, sui comportamenti di adattamento sociale, aggressivo e sulla self efficacy a conferma, della letteratura, sull’importanza di determinate esperienze motorie in età scolare.

La représentation du pathétique masculin dans le roman sentimental européen: une réflexion sur l'imaginaire littéraire

Ce travail est une analyse de la représentation du pathétique masculin dans le roman dit sentimental dans la deuxième moitié du dix-huitième siècle en Europe, ou plutôt dans les littératures anglaise, française, allemande et italienne. La thèse soutenue est celle de la dérivation du pathétique romanesque de l’âge des Lumières des pratiques de prédication religieuse du siècle précédent et donc de la valeur normative du roman sentimental à ses débuts : celui-ci aurait relayé le rôle des manuels de conduite des siècles précédents et se serait posé comme un répertoire d’exempla comportementaux adaptés aux différentes situations de la vie. Nous avons suivi les évolutions historiques du genre à travers l’analyse thématique du motif des larmes masculines. Pour ce faire, nous avons examiné la complexe proxémique de représentation de l’émotion et la diégèse qui en résulte, qui peut être nuancée, selon une terminologie récente, en pathétique attendrissant, sentimental et spectaculaire. Cela a entraîne la prise en compte de diverses formes artistiques, de la peinture au théâtre. La méthodologie utilisé conjugue l’histoire des idées et l’étude des formes de l’imaginaire, le pathétique appartenant au domaine de la philosophie autant qu’à celui de la représentation artistique : le concept glisse au dix-huitième siècle du champ rhétorique et stylistique à une dimension esthétique et anthropologique. Le travail a donc été divisé en trois grandes parties qui analysent les trois dimensions anthropologiques fondamentales : l’imaginaire religieux et l’héritage des anciens, c’est–à-dire le rapport que l’époque établit avec la tradition culturelle qui la précède ; l’imaginaire amoureux, qui se concentre sur les rapports entre les deux sexes et sur la « féminisation » du héros romanesque sentimental ; l’imaginaire familial, qui aborde les conséquences de ce changement dans la représentation de la masculinité au sein de la représentation de la famille et des rapports intergénérationnels.

Deficit in the Emotional Embodiment in Alexithymia

Alexithymia refers to difficulties in recognizing one’s own emotions and others emotions. Theories of emotional embodiment suggest that, in order to understand other peoples’ feelings, observers re-experience, or simulate, the relevant component (i.e. somatic, motor, visceral) of emotion’s expressed by others in one’s self. In this way, the emotions are “embodied”. Critically, to date, there are no studies investigating the ability of alexithymic individuals in embodying the emotions conveyed by faces. In the present dissertation different implicit paradigms and techniques falling within the field of affective neuroscience have been employed in order to test a possible deficit in the embodiment of emotions in alexithymia while subjects were requested to observe faces manifesting different expression: fear, disgust, happiness and neutral. The level of the perceptual encoding of emotional faces and the embodiment of emotions in the somato-sensory and sensory-motor system have been investigated. Moreover, non-communicative motor reaction to emotional stimuli (i.e. visceral reactions) and interoceptive abilities of alexithymic subjects have been explored. The present dissertation provided convergent evidences in support of a deficit in the processing of fearful expression in subjects with high alexithymic personality traits. Indeed, the pattern of fear induced changes in the perceptual encoding, in the somato-sensory and in the somato-motor system (both the communicative and non communicative one) is widely and consistently altered in alexithymia. This support the hypothesis of a diminished responses to fearful stimuli in alexithymia. In addition, the overall results on happiness and disgust, although preliminary, provided interesting results. Indeed, the results on happiness revealed a defective perceptual encoding, coupled with a slight difficulty (i.e. delayed responses) at the level of the communicative somato-motor system, and the emotion of disgust has been found to be abnormally embodied at the level of the somato-sensory system.