Eleftheria Pistolas
@eleftheriapistolas.bsky.social
PhD Researcher in Cognitive Psychology
GestaltReVision Lab, Leuven, Belgium @gestaltrevision.bsky.social
Interests: Experimental Psychology, Visual Perception, Consciousness, Aesthetics, EEG, Eye-Tracking
GestaltReVision Lab, Leuven, Belgium @gestaltrevision.bsky.social
Interests: Experimental Psychology, Visual Perception, Consciousness, Aesthetics, EEG, Eye-Tracking
@gestaltrevision.bsky.social @kuleuvenuniversity.bsky.social @openmindjournal.bsky.social #Perception #VisionScience
November 16, 2025 at 2:43 PM
A massive thank you to Ignace Hooge and Roy Hessels for all their advice on the eye-tracking data preprocessing and analysis.
November 16, 2025 at 2:43 PM
A massive thank you to Ignace Hooge and Roy Hessels for all their advice on the eye-tracking data preprocessing and analysis.
Together, these findings offer a multifaceted understanding of the perceptual, emotional, and cognitive aspects of Ganzfeld experiences, with a closer look into the temporal dynamics.
November 16, 2025 at 2:43 PM
Together, these findings offer a multifaceted understanding of the perceptual, emotional, and cognitive aspects of Ganzfeld experiences, with a closer look into the temporal dynamics.
* At the neural level:
• Increased theta activity (midfrontal), which may align with neural signatures associated with mind blanking.
• Increased alpha activity (occipital), consistent with attenuated sensory processing and reduced external engagement.
• Increased theta activity (midfrontal), which may align with neural signatures associated with mind blanking.
• Increased alpha activity (occipital), consistent with attenuated sensory processing and reduced external engagement.
November 16, 2025 at 2:43 PM
* At the neural level:
• Increased theta activity (midfrontal), which may align with neural signatures associated with mind blanking.
• Increased alpha activity (occipital), consistent with attenuated sensory processing and reduced external engagement.
• Increased theta activity (midfrontal), which may align with neural signatures associated with mind blanking.
• Increased alpha activity (occipital), consistent with attenuated sensory processing and reduced external engagement.
* At the level of subjective experience: a noticeable lag in reporting, often described as “losing everything” or “needing time to come back to awareness”, resonating with qualitative characteristics of mind blanking.
November 16, 2025 at 2:43 PM
* At the level of subjective experience: a noticeable lag in reporting, often described as “losing everything” or “needing time to come back to awareness”, resonating with qualitative characteristics of mind blanking.
* At the behavioral level: reduced eye movements, aligning with the fading of sensory information.
November 16, 2025 at 2:43 PM
* At the behavioral level: reduced eye movements, aligning with the fading of sensory information.
• Perceptual decays were reported continuously during the Ganzfeld session using a dial and indicated:
November 16, 2025 at 2:43 PM
• Perceptual decays were reported continuously during the Ganzfeld session using a dial and indicated:
• These perceptual experiences pointed us toward different cognitive processing styles, some more inward-focused, others more externally directed.
November 16, 2025 at 2:43 PM
• These perceptual experiences pointed us toward different cognitive processing styles, some more inward-focused, others more externally directed.
• Ganzfeld spaces reliably induce altered states of consciousness and immersive, full-body experiences with distinct bodily sensations such as imbalance, floating, and lightness.
November 16, 2025 at 2:43 PM
• Ganzfeld spaces reliably induce altered states of consciousness and immersive, full-body experiences with distinct bodily sensations such as imbalance, floating, and lightness.
Key findings:
November 16, 2025 at 2:43 PM
Key findings:
We used a multi-method approach, combining EEG, eye-tracking, continuous reporting of percept formation and decays, interviews, and questionnaires, to capture how neural, behavioral, and phenomenal aspects of Ganzfeld experiences unfold over time.
November 16, 2025 at 2:43 PM
We used a multi-method approach, combining EEG, eye-tracking, continuous reporting of percept formation and decays, interviews, and questionnaires, to capture how neural, behavioral, and phenomenal aspects of Ganzfeld experiences unfold over time.
Thank you to my co-authors: Boris Quétard, @sucharit.bsky.social and Johan Wagemans for this exciting collaboration.
November 16, 2025 at 2:43 PM
Thank you to my co-authors: Boris Quétard, @sucharit.bsky.social and Johan Wagemans for this exciting collaboration.
I would also like to thank all of my coworkers, family and friends for their support and assistance on this day and the four years leading up to it.
@gestaltrevision.bsky.social
@kuleuvenuniversity.bsky.social
@gestaltrevision.bsky.social
@kuleuvenuniversity.bsky.social
October 8, 2025 at 9:12 AM
I would also like to thank all of my coworkers, family and friends for their support and assistance on this day and the four years leading up to it.
@gestaltrevision.bsky.social
@kuleuvenuniversity.bsky.social
@gestaltrevision.bsky.social
@kuleuvenuniversity.bsky.social
A special thank you to the members of my examination committee, Francesca Bacci, @aennebrielmann.bsky.social , Roland Fleming and Bram Vervliet for the insightful questions, engaging discussions, and for making this day truly memorable.
October 8, 2025 at 9:12 AM
A special thank you to the members of my examination committee, Francesca Bacci, @aennebrielmann.bsky.social , Roland Fleming and Bram Vervliet for the insightful questions, engaging discussions, and for making this day truly memorable.
A huge thank you to my mentor and promotor Johan Wagemans for his unwavering support and guidance, and to my co-promotors @biekezaman.bsky.social and Koen Brosens for their interest and insightful advice.
October 8, 2025 at 9:10 AM
A huge thank you to my mentor and promotor Johan Wagemans for his unwavering support and guidance, and to my co-promotors @biekezaman.bsky.social and Koen Brosens for their interest and insightful advice.
This study aimed to examine whether and when multimodal integration of visual and auditory components occurs in the multimodal Ganzfeld (visual and auditory homogeneous stimulation).
September 26, 2025 at 6:35 AM
This study aimed to examine whether and when multimodal integration of visual and auditory components occurs in the multimodal Ganzfeld (visual and auditory homogeneous stimulation).
@gestaltrevision.bsky.social @kuleuvenuniversity.bsky.social
@pec-ipe.bsky.social
#VisionScience #VisualPerception #Ganzfeld
@pec-ipe.bsky.social
#VisionScience #VisualPerception #Ganzfeld
September 26, 2025 at 6:34 AM
This work highlights visual dominance in Ganzfeld settings as well as how sensory input and more specifically, suggestive elements like sound and color may influence multisensory percept formation under Ganzfeld stimulation.
September 26, 2025 at 6:33 AM
This work highlights visual dominance in Ganzfeld settings as well as how sensory input and more specifically, suggestive elements like sound and color may influence multisensory percept formation under Ganzfeld stimulation.
* The “wave” phenomenon: Water-like sounds were the only consistent category of auditory hallucination across studies, potentially because the low frequencies of brown noise resemble ocean waves. These were often paired with blue visual fields.
September 26, 2025 at 6:33 AM
* The “wave” phenomenon: Water-like sounds were the only consistent category of auditory hallucination across studies, potentially because the low frequencies of brown noise resemble ocean waves. These were often paired with blue visual fields.
* Noise seems suggestive (especially brown noise): Auditory hallucinations that did occur seemed influenced by the sound characteristics; brown noise, with its low-frequency profile, produced more hallucinations than white noise or no noise.
September 26, 2025 at 6:33 AM
* Noise seems suggestive (especially brown noise): Auditory hallucinations that did occur seemed influenced by the sound characteristics; brown noise, with its low-frequency profile, produced more hallucinations than white noise or no noise.
* Unimodal focus: Over half (53%) maintained focus on visual experience, while noise often “faded into the background” (24%).
September 26, 2025 at 6:32 AM
* Unimodal focus: Over half (53%) maintained focus on visual experience, while noise often “faded into the background” (24%).
* Multisensory integration is scarce: Only 4–13% of participants reported congruent multimodal experiences (e.g., matching visual and auditory content).
September 26, 2025 at 6:32 AM
* Multisensory integration is scarce: Only 4–13% of participants reported congruent multimodal experiences (e.g., matching visual and auditory content).