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Carles Escera

Brainlab - Grup de Recerca en Neurociència Cognitiva, Departament de Psicologia Clínica i Psicobiologia, Facultat de Psicologia, Universitat de Barcelona (UB), Barcelona, Spain.

3 papers in the library · 10 citations · publishing 2024-2025

Papers

The strength of neural entrainment to electronic music correlates with proxies of altered states of consciousness.

Frontiers in human neuroscience January 1, 2025 Raquel Aparicio-Terrés, Samantha López-Mochales, Margarita Díaz-Andreu et al. 6 citations

Electronic music with a slower tempo (around 1.65 Hz, or 99 beats per minute) produces stronger brainwave entrainment and greater feelings of unity than faster tempos (around 2.85 Hz, or 171 beats per minute). Nineteen participants listened to one-minute electronic music excerpts at three different tempos while their brain activity was recorded with electroencephalography and they reported subjective experiences. Although entrainment was higher at the slower tempo and unity feelings were also higher, there was no direct link between how much an individual's brainwaves synchronized and their altered-state experiences. Instead, stronger entrainment correlated with slower reaction times, suggesting entrainment plays a functional role in processes related to rhythm-induced altered states, though the study could not confirm whether participants actually entered an altered state.

The neurobiology of altered states of consciousness induced by drumming and other rhythmic sound patterns.

Annals of the New York Academy of Sciences July 16, 2025 Raquel Aparicio-Terrés, Samantha López-Mochales, Margarita Díaz-Andreu et al. 4 citations

Rhythmic sounds such as drumming, binaural beats, and mantra can induce altered states of consciousness characterized by absorption and relaxation. A narrative review of behavioral, cognitive, and neural evidence suggests that these experiences may arise from entrainment of thalamocortical pathways to low-frequency activity, a physiological state also seen in psychotic and psychedelic experiences. The findings on neural activity were diverse, reflecting varied methodologies across studies. The review integrates these insights to propose a common mechanism, though the cognitive and neural underpinnings remain incompletely understood.

Assessing the relationship between neural entrainment and altered states of consciousness induced by electronic music

bioRxiv Preprint Server January 16, 2024 Raquel Aparicio-Terrés, Samantha López-Mochales, Margarita Díaz-Andreu et al. preprint

Listening to electronic music at a tempo of 1.65 Hz (about 99 beats per minute) produces stronger brainwave synchronization than faster tempos of 2.25 Hz or 2.85 Hz. In 20 participants, this slower tempo also increased feelings of unity, a component of altered states of consciousness, though this subjective experience was not directly linked to the brain entrainment itself. However, a correlation emerged between entrainment and faster reaction times on cognitive tasks. The findings suggest tempo modulates neural entrainment and may influence certain aspects of consciousness, but the relationship between entrainment and altered states remains unclear.