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Harry Geddes

4 papers in the library · 16 citations · publishing 2019-2025

Papers

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TMS-EEG Shows Mindfulness Meditation Is Associated With a Different Excitation/Inhibition Balance in the Dorsolateral Prefrontal Cortex

Mindfulness February 1, 2025 Gregory Humble, Harry Geddes, Oliver Baell et al. 4 citations

Abstract Objectives Mindfulness meditation is associated with functional brain changes in regions subserving higher order cognitive processes such as attention. However, no research to date has probed these areas in meditators using combined transcranial magnetic stimulation (TMS) and electroencephalography (EEG). This study aimed to investigate whether cortical reactivity to TMS differs in a...

TMS-EEG shows mindfulness meditation is associated with an altered excitation/inhibition balance in the dorsolateral prefrontal cortex

bioRxiv (Cold Spring Harbor Laboratory) November 1, 2023 Gregory Humble, Harry Geddes, Oliver Baell et al. 1 citation preprint

Abstract Objective Mindfulness meditation is associated with functional brain changes in regions subserving higher order cognitive processes such as attention. However, no research to date has causally probed these areas in meditators using combined transcranial magnetic stimulation (TMS) and electroencephalography (EEG). This study aimed to investigate whether cortical reactivity to TMS...

Meditators probably show increased behaviour-monitoring related neural activity

bioRxiv Preprint Server July 7, 2022 Neil W. Bailey, Harry Geddes, Isabella Zannettino et al. 5 citations preprint

Objectives Mindfulness meditation is associated with better attention function. Performance monitoring and error-processing are important aspects of attention. We investigated whether experienced meditators showed different neural activity related to performance monitoring and error-processing. Previous research has produced inconsistent results. This study used more rigorous analyses and a...

Experienced meditators exhibit no differences to demographically-matched controls in theta phase synchronisation, P200, or P300 during an auditory oddball task

bioRxiv (Cold Spring Harbor Laboratory) April 14, 2019 J.R. Payne, Oliver Baell, Harry Geddes et al. 6 citations preprint

Abstract Objectives Long-term meditation practice affects the brain’s ability to sustain attention. However, how this occurs is not well understood. Electroencephalography (EEG) studies have found that during dichotic oddball listening tasks, experienced meditators displayed altered attention-related neural markers including theta phase synchronisation (TPS) and event-related potentials (ERP;...