Pandelis Perakakis


I’m an Associate Professor of Psychology at the Complutense University of Madrid, where I teach Individual Differences and investigate the dynamics of affective experiences.

In 2012, I co-founded Open Scholar, a group of volunteer researchers developing and promoting models and tools to improve Scholarly Communication.

Latest news and thoughts

How to sell your journal: The secret business of academic journal acquisitions

Ever wondered how academic journals change hands? I recently had a revealing conversation with a company specializing in journal acquisitions. Here's what I learned about the 'empire' they're building...

Djokovic vs Science

When tennis superstar Novak Djokovic changed his diet, his career took off. But not everyone is convinced, citing a lack of scientific evidence. In my latest blog post, I explore the tension between...

Qué es una publicación científica y qué no lo es

Durante el periodo en el que me presenté a plazas de Ayudante Doctor en varias universidades andaluzas, he tenido la oportunidad de conocer de primera mano varias irregularidades en estos procesos de...
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Affect dynamics

Exploring the impact of shifts in affect—from positive to negative feelings—on psychological well-being

Scholarly communication

Developing models and tools to empower the scholarly community regain control over academic publishing

Exercise, Brain and Cognition

Unraveling the proposed relationship between physical exercise and cognitive performance



Matlab software for the analysis of heart rate data: Heart Rate Variability, Detrended Fluctuation Analysis, Phasic Cardiac Responses.


Matlab standalone software and EEGLAB plugin for the analysis of the Heartbeat-evoked Potential: QRS and T-wave detection, visual artifact detection, event creation.

Selected publications

Natural selection of academic papers

Scientometrics. 85 (2), 553–559 (2010)

An umbrella review of randomized control trials on the effects of physical exercise on cognition

Nature Human Behaviour 7, 928–941 (2023)

Breathing frequency bias in fractal analysis of heart rate variability

Biological Psychology, 82 (1), 82–88 (2009)

Replacing academic journals

Royal Society Open Science, 10 (7), 230206


Facultad de Psicología
Departamento de Psicología Social, del Trabajo y Diferencial
Universidad Complutense de Madrid
Campus de Somosaguas s/n
28223. Pozuelo de Alarcón. Madrid

Office: 2.229 (Building 2, second floor)
Tel: +34 91 394 3120
perakakis [at]

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