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Previous studies showed that emotional pictures capture attention. Further, this effect was decreased by manipulating spatial attention. In contrast, studies produced mixed findings for effects of perceptual load on attention to emotional pictures. Emotional pictures can be phobic or nonphobic. Because phobia might be an evolutionary adaption, it is possible that effects of phobic pictures on attention differ from effects of nonphobic emotional pictures. The present thesis aimed at investigating attention in spider phobia. Attention to emotional pictures was operationalized as event-related potentials (ERPs) (P1, early posterior negativity [EPN,] and late positive potential [LPP]). Two research questions were formulated. First, do phobic pictures evoke larger ERPs than what can be expected from arousal and valence? Second, are effects of spatial attention and perceptual load on ERPs the same for phobic and nonphobic emotional pictures? To investigate this, phobic and nonphobic negative pictures were presented to spider phobic and nonphobic participants. To determine effects of spatial attention on ERPs, participants were instructed to divert attention to a single letter that was presented in the periphery. To determine effects of perceptual load on ERPs, participants were instructed to perform a letter discrimination task on one, two, or three letters that were presented in the periphery. Study 1 showed enhanced LPP amplitudes to phobic pictures independent of arousal and valence. Further, this effect was present in both phobic and nonphobic participants. Study 2 showed that there was no effect of perceptual load on LPP to phobic pictures. Study 3 showed that spatial attention reduced LPP amplitudes, and to a similar extent for both phobic and nonphobic pictures. Further, perceptual load did not reduce EPN or LPP amplitudes to either phobic or nonphobic pictures. To conclude, the results suggest that phobic pictures evoke larger ERP amplitudes than nonphobic pictures. Still, ERPs to phobic and nonphobic pictures are moderated similarly by spatial attention and perceptual load. At the time of the doctoral defense, the following papers were unpublished and had a status as follows: Paper 1: Manuscript. Paper 3: Manuscript.

It is rather often assumed that Swedish foreign policy debate is largely characterized by consensus and that foreign policy goals often are material (for example security or economic welfare). Despite this, it is possible to identify disagreement among political parties about ideological goals – i.e. the promotion of values – in Swedish foreign policy debates. This raises questions about the nature and importance of these ideological goals in such debates. To study this closer I investigate foreign policy debates about the military conflicts in Vietnam and Iraq. The purpose of the dissertation is to describe and explain the content and relative importance of the ideological goals expressed by Swedish parliamentary parties in both party and public arenas. Four parties are included in the study: the Left, the Social Democrats, the Liberals and the Conservatives. The theoretical framework is made up of two main parts. First, I develop a classification scheme to identify and sort the goals found in the empirical material. This scheme includes four goal types: ideological, security, economic, and other. Second, insights from literatures on foreign policy and the behaviour of political parties are used to analyze the content and importance of ideological goals. The research design used in the dissertation is comparative case studies. The empirical material is composed of documents from the internal party arena (meeting minutes, congress material, etc), the parliamentary arena (debate material) and the official arena (press material). The material has been analyzed mainly qualitatively with the help of ideational and argument analysis. In order to estimate the relative importance of ideological goals quantitative content analysis has also been used. As regards the content of ideological goals during debates about Vietnam, the empirical results show all parties discussed the promotion of humanity, democracy and states’ rights to national independence. In the Iraq conflict, all parties expressed goals about humanity, human rights, internal security/safety, democracy and states’ rights to national independence. Beyond these goals, individual or a few parties also expressed other ideological goals. However, a central result is that the parties have linked the ideological goals – which they often agree about – to different ways of reasoning. The empirical analysis also revealed that ideological goals have generally been more important than other types of goals (with the exception of the Conservative Party in the debate about Vietnam). Regarding developments over time, the importance of ideological goals was unchanged for the Social Democrats and the Liberal Party. For the Left there was a slight decrease, and for the Conservatives a significant increase. The overall conclusion about what explains the content and importance of ideological goals in the foreign policy debates studied here is that explanations at the systemic level are inadequate. Variables like the international political structure (polarity) and institutional mechanisms in the EU and the EU’s Common Foreign and Security Policy had little explanatory power. Instead, explanations like type of foreign policy issue, party ideology and party strategy were more useful. Differences in parties’ fundamental ideological views were also discussed as an important source of difference as regards the positions and arguments that expressed ideological goals.

Validerat; 20101217 (root)

Mild Cognitive Impairment (MCI) refers to a transitional stage between normal aging and dementia. The purpose of this study was to predict the development of MCI patients based on cognitive function. 222 MCI patients were studied at baseline and at a follow-up of 2 years. Using discriminant analysis, they were predicted into four diagnostic groups: Improved, Stable MCI, Dementia of the Alzheimer’s Type (AD) and Other Dementia. Using four tests - Rey-Osterrieth Complex Figure Test recall, Auditory-Verbal Learning Test recall, TMTB time and Digit Symbol – overall 62.6% of cases were correctly classified after cross-validation. The rate of prediction in this study was 1.8 times better than chance, which is better than reported in most other studies. The model did best for the AD group with 80% of cases correctly classified. However, most cases in the Other Dementia group were also classified as AD.