Martin Marko

Martin Marko
Slovak Academy of Sciences | SAV · Department of Behavioural Neuroscience

Doctor of Philosophy (PhD)

About

25
Publications
15,882
Reads
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174
Citations
Introduction
Martin Marko currently works at the Department of Behavioral Neuroscience, Slovak Academy of Sciences. Martin does research in Cognitive Neuroscience and Cognitive Psychology. Their current project is 'Cognitive and neurophysiological determinants of semantic cognition.'
Additional affiliations
September 2016 - present
Comenius University Bratislava
Position
  • Lecturer
Description
  • Lectures: (1) Introduction to Psychology, (2) Cognitive Psychology
February 2016 - August 2016
Slovak Academy of Sciences
Position
  • Research Associate
September 2013 - July 2016
Comenius University Bratislava
Position
  • PhD Student

Publications

Publications (25)
Article
Cognitive flexibility emerges from an interplay of multiple cognitive systems, of which lexical-semantic and executive are thought to be the most important. Yet this has not been addressed by previous studies demonstrating that such forms of flexible thought deteriorate under stress. Motivated by these shortcomings, the present study evaluated seve...
Article
Associative processes play a major role in research on human thinking, especially creativity. One of the most influential models emphasizing associative processes in creative thinking was introduced by Mednick (Psychological Review, 69, 220–232, 1962), who developed the remote associates test (RAT) as a domain-general measure of individual differen...
Article
Full-text available
Lexical–semantic retrieval emerges through the interactions of distributed prefrontal and perisylvian brain networks. Growing evidence suggests that synchronous theta band neural oscillations might play a role in this process, yet, their functional significance remains elusive. Here, we used transcranial alternating current stimulation to induce ex...
Article
Full-text available
Semantic control refers to a set of neural and cognitive mechanisms that govern semantic processing and retrieval. Neuroimaging studies have indicated that controlled semantic processing engages the left prefrontal cortex (PFC), yet the functional role of the prefrontal activity in semantic control is poorly understood and was therefore addressed i...
Article
Full-text available
An essential aim in the research on semantic cognition is to understand the interplay between the structure of semantic representation and controlled processes that operate on it to generate flexible behaviours. To evaluate the link between semantic network connectivity and semantic control functions (semantic inhibition and switching), we employed...
Preprint
Prevailing theoretical accounts consider that automatic and controlled processes are uniformly engaged in memory retrieval across performance of the semantic verbal fluency (SVF) task. We tested this proposal against the alternative, namely that a rapid automatic retrieval, exploiting stable associative structure in the early stages of the performa...
Article
Full-text available
Prevailing theoretical accounts consider that automatic and controlled processes are uniformly engaged in memory retrieval across performance of the semantic verbal fluency (SVF) task. We tested this proposal against the alternative, namely that a rapid automatic retrieval, exploiting stable associative structure in the early stages of the performa...
Article
Full-text available
Virtual reality (VR) enables individuals to be exposed to naturalistic environments in laboratory settings, offering new possibilities for research in human neuroscience and treatment of mental disorders. We used VR to study psychological, autonomic and postural reactions to heights in individuals with varying intensity of fear of heights. Study pa...
Article
Full-text available
The neurotransmitter serotonin has been critically implicated in the pathogenesis of several mental disorders. The serotonin transporter (5-HTT) is a key regulator of serotonergic neurotransmission and its genetic variability is associated with increased risk of psychopathology. One well known polymorphic locus in the 5-HTT gene affecting its expre...
Article
Full-text available
Processing of ambiguous visual stimuli has been associated with an increased activation of the left lateral prefrontal cortex (PFC) in neuroimaging studies. Nevertheless, the functional role of prefrontal activity in this process is not fully understood. In this experiment we asked participants to evaluate ambiguous inkblots from the Rorschach test...
Article
The relationship between subjective stress perception and the objective stress response to acute stress stimuli is not sufficiently understood. The aim of the present study was to test the hypothesis that the neuroendocrine response in socially evaluated cold pressor test (CPT) depends on the extent of perceived stressfulness of the stimulus. The t...
Article
Introduction Disrupted control of lexical-semantic processing is a core symptom of several neuropsychiatric disorders and has often been attributed to a compromised function of the prefrontal cortex. Method The goal of the present study was to investigate whether anodal transcranial direct-current stimulation (tDCS) of the left dorsolateral prefro...
Article
Post-weaning social isolation has been shown to be a relevant animal model for studying the mechanisms underlying psychopathological states induced by early-life stressful experiences. Besides extensively studied brain-derived neurotrophic factor (BDNF)and tyrosine receptor kinase B (TrkB)receptor, increasing attention is being given to a neuropept...
Article
Research increasingly suggests that nitric oxide (NO) plays a role in the pathogenesis of schizophrenia. One important line of evidence comes from genetic studies, which have repeatedly detected an association between the neuronal isoform of nitric oxide synthase (nNOS or NOS1) and schizophrenia. However, the pathogenetic pathways linking nNOS, NO,...
Conference Paper
Visuospatial functions play a crucial role in human cognition, which has elicited over years a great deal of research focusing on their assessment, training and restoration. Interestingly , although our visuospatial capacities allow us to understand and infer relationships of 3D objects in space, these 3D aspects of visuospatial processing are prof...
Poster
Full-text available
Úvod: pracovná pamäť je dôležitou kognitívnou funkciou, ktorá súvisí s množstvom závažných neuropsychiatrických porúch a ochorení. Kľúčovým neuroanatomickým substrátom pracovnej pamäti je prefrontálna kôra (PFC), ktorej znížená aktivácia koreluje so všeobecným deficitom v kognitívnej oblasti. Nedávne štúdie naznačujú, že pomocou anodálnej transkran...
Article
A decreased responsiveness of the hypothalamic-pituitary-adrenocortical axis to stress stimuli in patients with atopy is well documented. The aim of this study was to investigate personality traits, salivary alpha-amylase activity and the aldosterone response to psychosocial stress procedure based on public speech in atopic patients with respect to...
Article
Full-text available
Objectives. The aim of the present study was to adapt the Schizotypal Personality Questionnaire (SPQ), one of the most widely used methods for the assessment of schizotypy, into the Slovak language and investigate its basic psychometric properties (reliability, latent structure, gender differences, and measurement invariance) in healthy volunteers....
Article
This study presents a protocol for induction of moderate psychosocial stress and investigates its impact on psychological and physiological responses. The proposed procedure was designed to enable researchers to assess cognitive performance under effect of various classes of stressors. The protocol's structure contains three main periods: baseline,...
Article
Full-text available
Na zaklade výsledkov testovania prebiehajucom v psychologickej diagnostike, vznikaju zavery a rozhodnutia, ktorých validita kriticky zavisi od spoľahlivosti využitých posudzovacich metod. Reliabilita nastroja je z tohto dovodu kľucovým pojmom pri posudzovani akehokoľvek psychologickeho atributu. Napriek množstvu alternativ, najvýznamnejsim a najpou...
Article
Full-text available
Task-related worries can be understood as an inherent component of an anxious state and stress response. Under evaluating conditions (e.g. cognitive testing), these worries, due to cognitive interference they create, may have undesirable effects on a cognitive performance at hand. Since cognitive interference has been documented to affect a broad s...
Conference Paper
Full-text available
An optimal cardiovascular response to threatening challenges is indispensable for coping with the situation. Anxiety disorders and high anxiety as a personality trait have been expected to be associated with autonomic lability and hyperreactivity during stress. Data published on this topic are rather variable. We have performed a series of studies...

Questions

Questions (8)
Question
Hello!
In our experiment, we have 3 types of word pairs: (1) Unrelated, (2) Remotely related and (3) Closely related. The participant is asked to judge whether the two words in each pair (e.g., dog - bone) are semantically related ("Yes" or "No" response).
Our hypothesis is that a certain psychological condition will be associated with increased "Yes" responses for the Unrelated and Remotely related trials (whereas the condition has no effect on the closely related trials).
Normally, one could threat "Unrelated" as false alarms and both "Remote" and "Close" as two respective signals. However, since we a priori expect that both "Unrelated" and "Remote" would be higher, the standard d' parameter might not be suitable (i.e., if both %H and %FA go up).
Therefore, I was wondering whether there is some kind of parameter that is conceptually inverse to d', i.e., that will use signal ("Close") as reference to both "Unrelated" or "Remote".
An example of hit rates for two subjects:
Healthy: Unrelated = 10%, Remote = 30%, Close = 90%
Patient: Unrelated = 30%, Remote = 50%, Close = 90%
Is d' applicable if comparing Unrelated with Remote? And even if comparing Unrelated and Close, it does not say that its due to increased noise and not decreased hit rate, right?
Thank you for any suggestion / transformation / R package or reference,
best!
Martin

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Projects

Projects (4)
Project
Semantic system creates and structures knowledge that guides adaptive cognition and behavior. The ability to access and use relevant semantic information is underpinned by a number of neurocognitive mechanisms, which are poorly understood. Our research aim is to investigate the cognitive systems and mechanisms that regulate the retrieval of information from semantic memory. For this purpose, we will use systematic manipulation of cognitive load and non-invasive transcranial electrical stimulation (tES) of the prefrontal brain cortex. Using these experimental approaches, we will inspect the role of executive control in semantic retrieval and provide a detailed description of the fundamental cognitive and neurophysiological determinants of semantic retrieval functions.
Project
Human thinking has been proposed to manifest in associative behavior. Generating word associations requires both lexical-semantic and executive functions. Evidence shows that transcranial electrical stimulation (tES) enhances such cognitive capacities in healthy and clinical population. The project aims to investigate the influence of tES over prefrontal and temporoparietal brain regions on working memory system (executive functioning and capacity) and lexical-semantic processes.