Search for dissertations about: "Stefan Wiens"

Showing result 1 - 5 of 7 swedish dissertations containing the words Stefan Wiens.

2. 1. Perspectives on wanted and unwanted sounds in outdoor environments : Studies of masking, stress recovery, and speech intelligibility

   Author : Jesper J. Alvarsson; Mats E. Nilsson; Stefan Wiens; Staffan Hygge; Stockholms universitet; []
   Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Psychology; psykologi;

   Abstract : An acoustic environment contains sounds from various sound sources, some generally perceived as wanted, others as unwanted. This thesis examines the effects of wanted and unwanted sounds in acoustic environments, with regard to masking, stress recovery, and speech intelligibility. READ MORE

4. 2. Electrophysiological correlates of consciousness

   Author : Rasmus Eklund; Stefan Wiens; Mats Nilsson; Antti Revonsuo; Stockholms universitet; []
   Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; neural correlates of consciousness; electroencephalography; event-related potentials; visual awareness negativity; auditory awareness negativity; recurrent processing; phenomenal consciousness; access consciousness; Psychology; psykologi;

   Abstract : How does the brain enable us to experience seeing or hearing a stimulus? If a stimulus is repeatedly presented at the awareness threshold, subjects will report that they are aware of the stimulus on half of the presentations. Electroencephalography (EEG) can be used to non-invasively record neural activity as event-related potentials (ERPs). READ MORE

5. 3. P-hacking in academic research : a critical review of the job strain model and of the association between night work and breast cancer in women

   Author : Michael Ingre; Stefan Wiens; Gustav Nilsonne; Kimmo Eriksson; Stockholms universitet; []
   Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Psychology; psykologi;

   Abstract : P-hacking can be described as a more or less deliberate, explorative approach to data analysis with a flexible/opportunistic search space and the reporting of primarily statistically significant findings. This leads to inflated type-1 error rates and to bias in reported estimates in the scientific literature. READ MORE

6. 4. Disruption of writing in noisy office environments

   Author : Marijke Keus van de Poll; Patrik Sörqvist; Stefan Wiens; Högskolan i Gävle; []
   Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; background speech; writing; speech intelligibility; Speech Transmission Index; masking; sound source location; working memory capacity; inattention; noise sensitivity; task interruptions; bakgrundsprat; skriva; taluppfattbarhet; Speech Transmission Index; maskering; ljudposition; arbetsminneskapacitet; uppmärksamhet; ljudkänslighet; uppgiftsavbrott; inget Strategiskt forskningsområde SFO ; no Strategic Research Area SFO ;

   Abstract : The overall aim of the four experimental studies included in this dissertation was to investigate the influence of background speech on writing performance. In Paper I, a manipulation of speech intelligibility of background speech, by using the Speech Transmission Index (STI), revealed disruptive effects at lower STI values (i.e. READ MORE

7. 5. Fearful attention : Investigating event-related potentials in spider phobia

   Author : Joakim Norberg; Stefan Wiens; Jonas Persson; Harald Schupp; Stockholms universitet; []
   Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; attention; phobia; event-related potential; Psychology; psykologi;

   Abstract : 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. READ MORE