Effects of 12-week avocado consumption on cognitive function among adults with overweight and obesity

Sedentary time is related to deficits in response inhibition among adults with overweight and obesity: An accelerometry and event‐related brain potentials study

“…We identified a region of interest (ROI), including six centroparietal electrodes (C1, Cz, C2, CP1, CPz, CP2) within 300–600 ms window poststimulus onset. These electrode sites are consistent with previous studies conducted in our laboratory (Edwards et al., 2019, 2020). P3b amplitude was defined as the average of mean amplitudes across the six‐electrode sites within the 300–600 ms poststimulus window.…”

“…This cross‐sectional study included 80 consenting middle‐aged adults with overweight and obesity ( M age = 35.8 years, SD = 5.8 years, BMI ranged between 25.0 and 47.9 kg/m 2 ) who contributed baseline secondary data to the Persea Americana for Total Health (PATH) randomized controlled trial (http://Clinicaltrials.gov NCT02740439; Edwards et al., 2020). Data collection took place between February 2016 and March 2018 following recruitment via internal University email, distribution of flyers within the local community within central Illinois and word‐of‐mouth.…”

“…Response inhibition was measured with a computerized two‐stimulus Oddball/NoGo task (Edwards et al., 2020). The oddball condition served as a Go task and aimed to develop a prepotent response to large circles (5.5 cm diameter), which were presented on 20% of the trials and served as targets; small circles (3 cm) were presented on 80% of the trials and served as nontargets.…”

“…All impedances were kept below 10 kΩ. The continuous electroencephalographic signal was digitized at a sampling rate of 500 Hz, amplified 500 times to an online low‐pass 70‐Hz filter with a direct current and a 60‐Hz notch filter (Edwards et al., 2020). Signal processing was performed using EEGLAB and ERPLab toolbox (Delorme & Makeig, 2004; Lopez‐Calderon & Luck, 2014) in MATLAB (Mathworks, Natick, MA, version 2017b).…”

“…A moving window (with a 100‐ms step) peak‐to‐peak amplitude exceeding 100 µV was used to identify and reject artifacts. Only individuals with a minimum of 20 targets on both Oddball and NoGo tasks were included in the analyses (Edwards et al., 2020; Kamijo et al., 2012; Walk et al., 2017). N2 had a maximum voltage at the Fz electrode and was expressed as the mean amplitude between 150 and 300 ms following the stimulus onset; N2 peak latency was defined as the time point of the maximum amplitude within the same time window.…”