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37 results on '"Reber, Thomas P."'

9. Side effects of monaural beat stimulation during sustained mental work on mind wandering and performance measures.

Author

Schmidt, Lucy Marlene, Chaieb, Leila, Derner, Marlene, Reber, Thomas P., and Fell, Juergen

Subjects
MENTAL work, ACOUSTIC stimulation, AUDITORY perception, MENTAL illness, STIMULUS & response (Psychology)
Abstract

Excessive mind wandering (MW) contributes to the development and maintenance of psychiatric disorders. Previous studies have suggested that auditory beat stimulation may represent a method enabling a reduction of MW. However, little is known about how different auditory stimulation conditions are subjectively perceived and whether this perception is in turn related to changes in subjective states, behavioral measures of attention and MW. In the present study, we therefore investigated MW under auditory beat stimulation and control conditions using experience sampling during a sustained attention to response task (SART). The subjective perception of the stimulation conditions, as well as changes in anxiety, stress and negative mood after versus before stimulation were assessed via visual-analog scales. Results showed that any auditory stimulation applied during the SART was perceived as more distracting, disturbing, uncomfortable and tiring than silence and was related to more pronounced increases of stress and negative mood. Importantly, the perception of the auditory conditions as disturbing was directly correlated with MW propensity. Additionally, distracting, disturbing and uncomfortable perceptions predicted negative mood. In turn, negative mood was inversely correlated with response accuracy for target stimuli, a behavioral indicator of MW. In summary, our data show that MW and attentional performance are affected by the adverse perception of auditory stimulation, and that this influence may be mediated by changes in mood. [ABSTRACT FROM AUTHOR]

Published
2024
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11. Modulating prospective memory and attentional control with high-definition transcranial current stimulation: Study protocol of a randomized, double-blind, and sham-controlled trial in healthy older adults

Author

Schmidt, Nadine, primary, Menéndez-Granda, Marta, additional, Münger, Ronya, additional, Reber, Thomas P., additional, Bayen, Ute J., additional, Gümüsdagli, Fabian E., additional, Hering, Alexandra, additional, Joly-Burra, Emilie, additional, Kliegel, Matthias, additional, and Peter, Jessica, additional

Published
2023
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24. Intracranial EEG correlates of implicit relational inference within the hippocampus

Author

Reber Thomas P.

Abstract

Drawing inferences from past experiences enables adaptive behavior in future situations. Inference has been shown to depend on hippocampal processes. Usually inference is considered a deliberate and effortful mental act which happens during retrieval and requires the focus of our awareness. Recent fMRI studies hint at the possibility that some forms of hippocampus dependent inference can also occur during encoding and possibly also outside of awareness. Here we sought to further explore the feasibility of hippocampal implicit inference and specifically address the temporal evolution of implicit inference using intracranial EEG. Presurgical epilepsy patients with hippocampal depth electrodes viewed a sequence of word pairs and judged the semantic fit between two words in each pair. Some of the word pairs entailed a common word (e.g. "winter red" "red cat") such that an indirect relation was established in following word pairs (e.g. "winter cat"). The behavioral results suggested that drawing inference implicitly from past experience is feasible because indirect relations seemed to foster "fit" judgments while the absence of indirect relations fostered "do not fit" judgments even though the participants were unaware of the indirect relations. A event related potential (ERP) difference emerging 400 ms post stimulus was evident in the hippocampus during encoding suggesting that indirect relations were already established automatically during encoding of the overlapping word pairs. Further ERP differences emerged later post stimulus (1500 ms) were modulated by the participants' responses and were evident during encoding and test. Furthermore response locked ERP effects were evident at test. These ERP effects could hence be a correlate of the interaction of implicit memory with decision making. Together the data map out a time course in which the hippocampus automatically integrates memories from discrete but related episodes to implicitly influence future decision making.

Published
2016
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26. TV vs. YouTube: TV Advertisements Capture More Visual Attention, Create More Positive Emotions and Have a Stronger Impact on Implicit Long-Term Memory

Author

Weibel, David, primary, di Francesco, Roman, additional, Kopf, Roland, additional, Fahrni, Samuel, additional, Brunner, Adrian, additional, Kronenberg, Philipp, additional, Lobmaier, Janek S., additional, Reber, Thomas P., additional, Mast, Fred W., additional, and Wissmath, Bartholomäus, additional

Published
2019
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37. Bone marrow mast cell reaction in preleukaemic myelodysplasia and in aplastic anaemia

Author

Fohlmeister, Ingrid, Reber, Thomas, and Fischer, Robert

Abstract

The relationship of bone marrow mast cell counts to prognosis was investigated in 48 patients with preleukaemic myelodysplasia, in 59 patients with aplastic anemia and in a DMBA induced myelodysplasia/leukaemia rat model. In patients with myelodysplasia terminating in overt leukaemia the number of mast cells per square millimeter was not correlated to duration of the preleukaemic course. Leukaemia development probabilities of patients at risk were not different for low and elevated mast cell counts. In aplastic anaemia, however, a lower bone marrow mast cell count was related to a higher survival probability and longer survival time. In the animal model no significant differences could be found between myelodysplastic, leukaemic, and control animals.

Published
1985
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