210,477 research outputs found
Octodriloides izanus Csuzdi, Pop et Pop 2011
No full textOctodriloides izanus Csuzdi, Pop et Pop, 2011 Octodriloides izanus Csuzdi, Pop & Pop 2011: 4, Pop et al. 2012: 64. MaterialeXamined. HNHM/16458 1 eX., RodnaMts, Săcel. IzaGorge, Izariverand theshorevegetation, limestonerocks, 800 m, leg. Cs. Csuzdi, L. Dányi, J. Kontschán, D. Murányi, 22.09.2005. Remark. Oi. izanus hasrecentlybeendescribedfromtheNECarpathians. Thepresentspecimenisfromthetypelocality.Published as part of Szederjesi, T., Pop, V. V. & Csuzdi, C., 2014, New And Little Known Earthworm Species From Peripheral Areas Of The Romanian Carpathians (Oligochaeta, Lumbricidae), pp. 85-107 in Acta Zoologica Academiae Scientiarum Hungaricae 60 (2) on page 101, DOI: 10.5281/zenodo.573631
Human frontal eye fields and spatial priming of pop-out
No full text"Priming of pop-out" is a form of implicit memory that facilitates detection of a recently inspected search target. Repeated presentation of a target's features or its spatial position improves detection speed (feature/spatial priming). This study investigated a role for the human frontal eye fields (FEFs) in the priming of color pop-out. To test the hypothesis that the FEFs play a role in short-term memory storage, transcranial magnetic stimulation (TMS) was applied during the intertrial interval. There was no effect of TMS on either spatial or feature priming. To test whether the FEFs are important when a saccade is being programmed to a repeated target color or location, TMS was applied during the search array. TMS over the left but not the right FEFs abolished spatial priming, but had no effect on feature priming. These findings demonstrate functional specialization of the left FEFs for spatial priming, and distinguish this role from target discrimination and saccade-related processes. The results suggest that the left FEFs integrate a spatial memory signal with an evolving saccade program, which facilitates saccades to a recently inspected location
Octodrilus parvivesiculatus Csuzdi, Pop et Pop 2011
No full textOctodrilus parvivesiculatus Csuzdi, Pop et Pop, 2011 Octodrilus parvivesiculatus Csuzdi, Pop & Pop, 2011: 5, Pop et al. 2012: 64. MaterialeXamined. HNHM/16453 1 eX., RodneiMts, Borşa- StaţiuneaBorşa, Cimpoies valley, beechforest, wetgrasslandandbrooksinthevicinityofthemineralwaterspring, 1023 m, N47°36.187’ E24°46.500’, leg. L. Dányi, J. Kontschán, D. Murányi, 26.09.2006.Published as part of Szederjesi, T., Pop, V. V. & Csuzdi, C., 2014, New And Little Known Earthworm Species From Peripheral Areas Of The Romanian Carpathians (Oligochaeta, Lumbricidae), pp. 85-107 in Acta Zoologica Academiae Scientiarum Hungaricae 60 (2) on page 103, DOI: 10.5281/zenodo.573631
Testing normative and self-appraisal feedback in an online slot-machine pop-up in a real-world setting
No full textOver the last few years, there have been an increasing number of gaming operators that have incorporated on-screen pop-up messages while gamblers play on slot machines and/or online as one of a range of tools to help encourage responsible gambling. Coupled with this, there has also been an increase in empirical research into whether such pop-up messages are effective, particularly in laboratory settings. However, very few studies have been conducted on the utility of pop-up messages in real-world gambling settings. The present study investigated the effects of normative and self-appraisal feedback in a slot machine pop-up message compared to a simple (non-enhanced) pop-up message. The study was conducted in a real-world gambling environment by comparing the behavioral tracking data of two representative random samples of 800,000 gambling sessions (i.e., 1.6 million sessions in total) across two conditions (i.e., simple pop-up message versus an enhanced pop-up message). The results indicated that the additional normative and self-appraisal content doubled the number of gamblers who stopped playing after they received the enhanced pop-up message (1.39%) compared to the simple pop-up message (0.67%). The data suggest that pop-up messages influence only a small number of gamblers to cease long playing sessions and that enhanced messages are slightly more effective in helping gamblers to stop playing in-session
What pops out in positional priming of pop-out: insights from event-related EEG lateralizations
No full textIt is well established that, in visual pop-out search, reaction time (RT) performance is influenced by cross-trial repetitions versus changes of target-defining attributes. One instance of this is referred to as “positional priming of pop-out” (pPoP; Maljkovic and Nakayama, 1996). In positional PoP paradigms, the processing of the current target is examined depending on whether it occurs at the previous target or a previous distractor location, relative to a previously empty location (“neutral” baseline), permitting target facilitation and distractor inhibition to be dissociated. The present study combined RT measures with specific sensory- and motor-driven event-related lateralizations to track the time course of four distinct processing levels as a function of the target’s position across consecutive trials. The results showed that, relative to targets at previous target and “neutral” locations, the appearance of a target at a previous distractor location was associated with a delayed build-up of the posterior contralateral negativity wave, indicating that distractor positions are suppressed at early stages of visual processing. By contrast, presentation of a target at a previous target, relative to “neutral” and distractor locations, modulated the elicitation of the subsequent stimulus-locked lateralized readiness potential wave, indicating that post-selective response selection is facilitated if the target occurred at the same position as on the previous trial. Overall, the results of present study provide electrophysiological evidence for the idea that target location priming (RT benefits) does not originate from an enhanced coding of target saliency at repeated (target) locations; instead, they arise (near-) exclusively from processing levels subsequent to focal-attentional target selection
System identification in priming of pop-out
No full textInter-trial repetitions of a target's features in a visual search task reduce the time needed to find the target. Here I examine these sequential dependencies in the Priming of Pop-Out task (PoP) by means of system identification techniques. The results are as follows. Response time facilitation due to repetition of the target's features increases linearly with difficulty in segmenting the target from the distracters. However, z-scoring the reaction times normalizes responses by equating facilitation across levels of difficulty. Memory kernels, representing the influence of the current trial on any future trial, can then be calculated from data normalized and averaged across conditions and observers. The average target-defining feature kernel and the target position kernel are well fit by a sum of two exponentials model, comprised of a high-gain, fast-decay component and a low-gain, slow-decay component. In contrast, the average response-defining feature kernel is well fit by a single exponential model with very low-gain and decay similar to the slow component of the target-defining feature kernel. Analysis of single participant's data reveals that a fast-decay component is often also present for the response-defining feature, but can be either facilitatory or inhibitory and thus tends to cancel out in pooled data. Overall, the results are similar to integration functions of reward history recently observed in primates during frequency-matching experiments. I speculate that sequential dependencies in POP result from learning mechanisms that bias the attentional weighting of certain aspects of the stimulus in an effort to minimize a prediction error signal
Charles Baudelaire bei Max und Margarete Bruns
No full textBehrens M. Charles Baudelaire bei Max und Margarete Bruns. Reihe Universitas. Vol 9. Ludwigsburg: Pop; 2014
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