Browsing by Author "Kafalıgönül, Hulusi"
Now showing items 1-18 of 18
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Audiovisual interactions in speeded discrimination of a visual event
(Wiley-Blackwell Publishing, Inc., 2021-01-07)The integration of information from different senses is central to our perception of the external world. Audiovisual interactions have been particularly well studied in this context and various illusions have been developed ... -
Auditory modulation of spiking activity and local field potentials in area MT does not appear to underlie an audiovisual temporal illusion
(American Physiological Society, 2018)The timing of brief stationary sounds has been shown to alter the perceived speed of visual apparent motion (AM), presumably by altering the perceived timing of the individual frames of the AM stimuli and/or the duration ... -
Auditory modulation of visual apparent motion with short spatial and temporal intervals
(Association for Research in Vision and Ophthalmology, 2010)Recently, E. Freeman and J. Driver (2008) reported a cross-modal temporal interaction in which brief sounds drive the perceived direction of visual apparent-motion, an effect they attributed to “temporal capture” of the ... -
Cortical processes underlying the effects of static sound timing on perceived visual speed
(Elsevier, 2019)It is well known that the timing of brief static sounds can alter different aspects of visual motion perception. For instance, previous studies have shown that time intervals demarcated by brief sounds can modulate perceived ... -
Dietary and pharmacological interventions that inhibit mammalian target of rapamycin activity alter the brain expression levels of neurogenic and glial markers in an age-and treatment-dependent manner
(Mary Ann Liebert, 2020)Intermittent fasting (IF) and its mimetic, rapamycin extend lifespan and healthspan through mechanisms that are not fully understood. We investigated different short-term durations of IF and rapamycin on cellular and ... -
Effects of contrast polarity in paracontrast masking
(Springer New York, 2009)The visibility of a target stimulus can be suppressed (inhibition) or increased (facilitation) during paracontrast masking. Three processes have been proposed to be involved in paracontrast masking: brief inhibition, ... -
Examining the effects of audiovisual associations on motion perception through task-based fMRI
(Yerkure Tanitim ve Yayincilik Hizmetleri A.S., 2018)Examining the effects of audiovisual associations on motion perception through task-based fMRI Objective: Previous studies showed that associative learning can lead to drastic changes in perceptual experience and unexpected ... -
Feedforward and feedback processes in vision
(Frontiers Research Foundation, 2015)[No abstract available] -
Meta- and paracontrast reveal differences between contour- and brightness-processing mechanisms
(Elsevier, 2006)We investigated meta- and paracontrast masking using tasks requiring observers to judge the surface brightness or else the contours of target stimuli. The contour task revealed strongest metacontrast at SOAs shorter than ... -
Metacontrast masking and stimulus contrast polarity
(Elsevier, 2008)A recent report [Becker, M. W., & Anstis S. (2004). Metacontrast masking is specific to luminance polarity. Vision Research, 44, 2537–2543] of a failure to obtain metacontrast with target and mask stimuli of opposite ... -
The optomotor response of aging zebrafish reveals a complex relationship between visual motion characteristics and cholinergic system
(Elsevier, 2020-10-23)Understanding the principles underlying age-related changes in motion perception is paramount for improving the quality of life and health of older adults. However, the mechanisms underlying age-related alterations in this ... -
Perceptual asynchronies and the dual-channel differential latency hypothesis
(Cambridge University Press, 2010)The dual-channel differential latency hypothesis (Öğmen et al. 2004) successfully accounts for many aspects of the flash-lag effect (FLE). Here we use the dual-channel differential latency hypothesis to explain an illusion ... -
Short-and long-term forms of neural adaptation: an ERP investigation of dynamic motion aftereffects
(Elsevier, 2020)Adaptation is essential to interact with a dynamic and changing environment, and can be observed on different timescales. Previous studies on a motion paradigm called dynamic motion aftereffect (dMAE) showed that neural ... -
Static sound timing alters sensitivity to low-level visual motion
(ARVOAysel Sabuncu Brain Research Center (BAM), 2012)Visual motion processing is essential to survival in a dynamic world and is probably the best-studied facet of visual perception. It has been recently discovered that the timing of brief static sounds can bias visual motion ... -
Temporal ventriloquism along the path of apparent motion: speed perception under different spatial grouping principles
(Springer Verlag, 2018)The coordination of intramodal perceptual grouping and crossmodal interactions plays a critical role in constructing coherent multisensory percepts. However, the basic principles underlying such coordinating mechanisms ... -
Vision: a systems neuroscience perspective
(Uskudar University, 2014)The visual system is the most studied part of the cortex, providing a basis for understanding not only visual processing per se but also the fundamental operations of the brain in general. Significant progress has been ... -
Zebrafish aging models and possible interventions
(InTechOpen Press, 2018)Across the world, the aging population is expanding due to an increasing average life expectancy. The percentage of elderly over the age of 65 is expected to be more than 15% of the total world population by 2025. As the ... -
Zebrafish-A model organism for studying the neurobiological mechanisms underlying cognitive brain aging and use of potential interventions
(Frontiers Media S.A., 2018)Classically, the zebrafish model organism has been used to elucidate the genetic and cellular mechanisms related to development since the embryo forms and grows externally following fertilization. This provides insight ...
