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International Journal of Psychophysiology

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https://www.readbyqxmd.com/read/28532643/reprint-of-a-new-approach-to-analyze-data-from-eeg-based-concealed-face-recognition-system
#1
A H Mehrnam, A M Nasrabadi, Mahrad Ghodousi, A Mohammadian, Sh Torabi
The purpose of this study is to extend a feature set with non-linear features to improve classification rate of guilty and innocent subjects. Non-linear features can provide extra information about phase space. The Event-Related Potential (ERP) signals were recorded from 49 subjects who participated in concealed face recognition test. For feature extraction, at first, several morphological characteristics, frequency bands, and wavelet coefficients (we call them basic-features) are extracted from each single-trial ERP...
May 19, 2017: International Journal of Psychophysiology
https://www.readbyqxmd.com/read/28528704/from-neuro-pigments-to-neural-efficiency-the-relationship-between-retinal-carotenoids-and-behavioral-and-neuroelectric-indices-of-cognitive-control-in-childhood
#2
Anne M Walk, Naiman A Khan, Sasha M Barnett, Lauren B Raine, Arthur F Kramer, Neal J Cohen, Christopher J Moulton, Lisa M Renzi-Hammond, Billy R Hammond, Charles H Hillman
Lutein and zeaxanthin are plant pigments known to preferentially accumulate in neural tissue. Macular Pigment Optical Density (MPOD), a non-invasive measure of retinal carotenoids and surrogate measure of brain carotenoid concentration, has been associated with disease prevention and cognitive health. Superior MPOD status in later adulthood has been shown to provide neuroprotective effects on cognition. Given that childhood signifies a critical period for carotenoid accumulation in brain, it is likely that the beneficial impact would be evident during development, though this relationship has not been directly investigated...
May 18, 2017: International Journal of Psychophysiology
https://www.readbyqxmd.com/read/28499987/evoked-potentials-in-final-epoch-of-self-initiated-hand-movement-a-study-in-patients-with-depth-electrodes
#3
Miloslav Kukleta, Alena Damborská, Baris Turak, Jacques Louvel
Comparison between the intended and performed motor action can be expected to occur in the final epoch of a voluntary movement. In search for electrophysiological correlates of this mental process the purpose of the current study was to identify intracerebral sites activated in final epoch of self-paced voluntary movement. Intracerebral EEG was recorded from 235 brain regions of 42 epileptic patients who performed self-paced voluntary movement task. Evoked potentials starting at 0 to 243ms after the peak of averaged, rectified electromyogram were identified in 21 regions of 13 subjects...
May 10, 2017: International Journal of Psychophysiology
https://www.readbyqxmd.com/read/28479367/math-anxiety-brain-cortical-network-changes-in-anticipation-of-doing-mathematics
#4
Manousos A Klados, Niki Pandria, Sifis Micheloyannis, Daniel Margulies, Panagiotis D Bamidis
Following our previous work regarding the involvement of math anxiety (MA) in math-oriented tasks, this study tries to explore the differences in the cerebral networks' topology between self-reported low math-anxious (LMA) and high math-anxious (HMA) individuals, during the anticipation phase prior to a mathematical related experiment. For this reason, multichannel EEG recordings were adopted, while the solution of the inverse problem was applied in a generic head model, in order to obtain the cortical signals...
May 5, 2017: International Journal of Psychophysiology
https://www.readbyqxmd.com/read/28476512/reactivity-of-alpha-rhythms-to-eyes-opening-the-berger-effect-during-menstrual-cycle-phases
#5
Olga M Bazanova, E D Nikolenko, Robert J Barry
The impact of the menstrual cycle on the alpha EEG reactivity to eyes opening (Berger effect) was studied in relation to hormonal and EMG indices. Repeated measurements of salivary progesterone and cortisol, forehead EMG, and EEG alpha-activity indices in 76 healthy women aged 18-27 were obtained in resting eyes closed (1min) and eyes open (30s) conditions. Ten recording sessions occurred, at 2-3day intervals, during 1-2 menstrual cycles. For example, if a participant had a menstrual cycle length of 30-32days, she could finish the investigation during 1cycle, but if she had a 24day cycle, she would finish the investigation over 1 1/2cycles...
May 2, 2017: International Journal of Psychophysiology
https://www.readbyqxmd.com/read/28476511/training-of-support-afferentation-in-postmenopausal-women
#6
O M Bazanova, N V Kholodina, E D Nikolenko, J Payet
We have recently shown a diminishing of the Menopause Index in old-aged women who underwent special training directed at the enhancement of support afferentation by increasing the plantar forefoot sensitivity (Bazanova et al., 2015). Based on these results we hypothesized, that purposeful training of support afferentation through stimulation of plantar graviceptors by Aikido practice will decrease excessive postural and psychoemotional tension not only in rest condition, but during cognitive and manual task performance too...
May 2, 2017: International Journal of Psychophysiology
https://www.readbyqxmd.com/read/28461204/challenge-and-threat-imagery-manipulates-heart-rate-and-anxiety-responses-to-stress
#7
Sarah E Williams, Jet J C S Veldhuijzen van Zanten, Gavin P Trotman, Mary L Quinton, Annie T Ginty
This study investigated the influence of different types of mental imagery on heart rate and anxiety responses to a standard psychological stress task. Using a within-design, 25 females (Mage=23.24; SD=4.19) imaged three different scripts (challenge, threat, and neutral) to manipulate appraisal of a speech preparation task. Following each script, participants completed the task. Heart rate was recorded during a resting baseline prior to each imagery script and during each speech preparation task. Cognitive and somatic anxiety and self-confidence were assessed prior to the speech preparation trials, and immediately prior to each speech preparation following imagery...
April 29, 2017: International Journal of Psychophysiology
https://www.readbyqxmd.com/read/28456581/error-related-oscillatory-activity-is-modulated-by-novelty-seeking-in-the-reward-condition
#8
J Mojsa-Kaja, E Beldzik, A Domagalik, M Gawlowska, T Marek
Behavioural research has revealed the influence of motivation conditions on cognitive task performance and demonstrated that these influences are modulated by temperament factors. Modern neuroimaging methods enable analysis of neuropsychological mechanisms through which individual differences in reinforcement sensitivity may influence cognitive functioning. In the study, fifty-six participants were scored on the Cloninger's Temperament and Character Inventory to assess punishment and reward sensitivity. Then, subjects participated in an EEG experiment using the numerical Stroop task under different motivational conditions...
April 27, 2017: International Journal of Psychophysiology
https://www.readbyqxmd.com/read/28456582/the-role-of-language-similarity-in-processing-second-language-morphosyntax-evidence-from-erps
#9
Haydée Carrasco-Ortíz, Adelina Velázquez Herrera, Donna Jackson-Maldonado, Gloria Nélida Avecilla Ramírez, Juan Silva Pereyra, Nicole Y Y Wicha
This study investigated the role of L1-L2 morphosyntactic similarity in L2 learners of French. In two experiments, we manipulated the grammatical gender agreement between an adjective and noun in a sentence context. The noun either shared lexical gender across Spanish and French (Experiment 1) or did not (Experiment 2). ERPs were collected from beginner Spanish-speaking learners of French and native French speakers while they read sentences in French. The results for the native speakers revealed a P600 effect on gender agreement violations irrespective of lexical gender overlap across languages...
April 26, 2017: International Journal of Psychophysiology
https://www.readbyqxmd.com/read/28454989/differences-in-male-and-female-subjective-experience-and-physiological-reactions-to-emotional-stimuli
#10
Iva Poláčková Šolcová, Alek Lačev
Research based on self-reported data often indicates that women are the more emotional sex. The present study examined differences in emotion between the sexes across two components of the emotional process: subjective experience and physiological reactions to emotional stimuli. During the experimental study, participants (N=124; 22.5±2.88; 51 males) subjectively rated their emotional experience (valence and intensity) towards presented positive and negative affective stimuli, while physiological reactions (facial electromyography, heart rate, skin conductance, and finger skin temperature) were measured during expositions...
April 25, 2017: International Journal of Psychophysiology
https://www.readbyqxmd.com/read/28442270/interpretation-of-physiological-indicators-of-motivation-caveats-and-recommendations
#11
Michael Richter, Kate Slade
Motivation scientists employing physiological measures to gather information about motivation-related states are at risk of committing two fundamental errors: overstating the inferences that can be drawn from their physiological measures and circular reasoning. We critically discuss two complementary approaches, Cacioppo and colleagues' model of psychophysiological relations and construct validation theory, to highlight the conditions under which these errors are committed and provide guidance on how to avoid them...
April 22, 2017: International Journal of Psychophysiology
https://www.readbyqxmd.com/read/28431987/patterns-of-brain-and-cardiovascular-activation-while-solving-rule-discovery-and-rule-application-numeric-tasks
#12
Tytus Sosnowski, Andrzej Rynkiewicz, Małgorzata Wordecha, Anna Kępkowicz, Adrianna Majewska, Aleksandra Pstrągowska, Tomasz Oleksy, Marek Wypych, Artur Marchewka
It is known that solving mental tasks leads to tonic increase in cardiovascular activity. Our previous research showed that tasks involving rule application (RA) caused greater tonic increase in cardiovascular activity than tasks requiring rule discovery (RD). However, it is not clear what brain mechanisms are responsible for this difference. The aim of two experimental studies was to compare the patterns of brain and cardiovascular activity while both RD and the RA numeric tasks were being solved. The fMRI study revealed greater brain activation while solving RD tasks than while solving RA tasks...
April 19, 2017: International Journal of Psychophysiology
https://www.readbyqxmd.com/read/28408136/on-the-correct-side-of-performance-processing-of-internal-and-external-signals-in-response-speed-evaluation
#13
Christian Valt, Birgit Stürmer
Response appropriateness is not exclusively limited to accuracy. Nevertheless, the processing of parameters other than accuracy for response monitoring has been mostly neglected. The present experiment explored how the cognitive system processes response speed based on internal and external signals. Participants performed a response-choice task where correct responses were classified as fast, average, or slow. External signals informative about performance quality were presented after the response in most of the trials; in some trials, instead, participants had to judge their own performance...
April 11, 2017: International Journal of Psychophysiology
https://www.readbyqxmd.com/read/28400246/the-effects-of-captivity-survival-training-on-mood-dissociation-ptsd-symptoms-cognitive-performance-and-stress-hormones
#14
Cindy Suurd Ralph, Oshin Vartanian, Harris R Lieberman, Charles A Morgan, Bob Cheung
In the Canadian Armed Forces (CAF), Conduct After Capture (CAC) training is a 4-day captivity survival course during which soldiers are exposed to increasing stress, and evaluated on their ability to accomplish military objectives. We hypothesized that: (a) compared to baseline, CAC training would cause significant, reversible perturbations in measures of psychological functioning and serum and salivary stress hormone levels relevant to models of stress hardiness and vulnerability; and (b) deviations from baseline would be maximal at the time point of most intense stress during training...
April 8, 2017: International Journal of Psychophysiology
https://www.readbyqxmd.com/read/28400245/psychophysiological-correlates-of-the-misinformation-effect
#15
Katja Volz, Rainer Leonhart, Rudolf Stark, Dieter Vaitl, Wolfgang Ambach
The misinformation effect refers to memory impairment that arises after exposure to misleading information (Loftus, 2005, p. 361). The present study focuses on the peripheral psychophysiology of false memories induced in a misleading information paradigm. On the basis of Sokolov's orienting reflex and studies concerning the Concealed Information Test (CIT, Lykken, 1959), the main hypothesis assumes differences between true and false memories in terms of the accompanying autonomic measures. It also is assumed that a cued recall of original information preceding the recollection phase reduces misinformation effects...
April 8, 2017: International Journal of Psychophysiology
https://www.readbyqxmd.com/read/28400244/the-interconnection-of-mental-fatigue-and-aging-an-eeg-study
#16
Stefan Arnau, Tina Möckel, Gerhard Rinkenauer, Edmund Wascher
Mental fatigue, a state of reduced alertness and decreased overall performance due to prolonged cognitive activity, is a major cause for a large number of accidents in traffic and industry. Against the background of an aging workforce, the investigation of the interconnection of mental fatigue and aging is of great practical relevance. In the present study, a group of younger and a group of older adults performed a cognitive task for 3h. The experimental design also comprised breaks with various durations. Beside behavioral data, the spectral properties of the ongoing EEG with respect to time on task and breaks were analyzed...
April 8, 2017: International Journal of Psychophysiology
https://www.readbyqxmd.com/read/28390903/obesity-is-associated-with-lack-of-inhibitory-control-and-impaired-heart-rate-variability-reactivity-and-recovery-in-response-to-food-stimuli
#17
Grazia Fernanda Spitoni, Cristina Ottaviani, Anna Maria Petta, Pietro Zingaretti, Massimiliano Aragona, Antonio Sarnicola, Gabriella Antonucci
Recent theories compare obesity with addiction in terms of lack of inhibitory control in both clinical populations. The present study hypothesized impaired inhibition in obese patients reflected both in executive functions and reduced vagal tone (indexed by a decrease in heart rate variability; HRV) in response to food stimuli. Twenty-four inpatients with obesity (19 women) and 37 controls (24 women) underwent ECG monitoring during baseline, food stimuli viewing, and a recovery phase. Tests and questionnaires assessing inhibitory control and psychopathological dispositions were also administered...
April 6, 2017: International Journal of Psychophysiology
https://www.readbyqxmd.com/read/28389250/significance-and-novelty-effects-in-single-trial-erp-components-and-autonomic-responses
#18
Brett MacDonald, Robert J Barry
The phasic orienting reflex (OR) was investigated in two counterbalanced blocks of an auditory dishabituation paradigm differing in stimulus Significance (operationalised as tone counting). Twelve tones were presented at very long, randomly-varying interstimulus intervals (ISIs). Novelty and Significance were varied within subjects. Stimulus-response patterns were assessed to find ERP matches for autonomic measures. The phasic OR index was represented by the skin conductance response (SCR). SCR decremented over 10 standard trials, showed recovery on trial 11 (change trial), enhancement to re-presentation of the standard tone (trial 12: dishabituation), and a main effect of Significance over the first 10 trials - demonstrating the formal criteria for an OR index...
April 4, 2017: International Journal of Psychophysiology
https://www.readbyqxmd.com/read/28377265/lexical-influence-on-stress-processing-in-a-fixed-stress-language
#19
Linda Garami, Anett Ragó, Ferenc Honbolygó, Valéria Csépe
In the present study, we investigate how lexicality affects the processing of suprasegmental features at the word level. In contrast to earlier studies which analyzed the role of either segmental or suprasegmental feature in language processing our aim was to investigate the effect of the lexical status on the processing of violated stress pattern defined by linguistic rules. We have conducted a passive oddball ERP experiment, presenting a frequent CVCV word with legal (familiar) and illegal (unfamiliar) stress patterns...
April 2, 2017: International Journal of Psychophysiology
https://www.readbyqxmd.com/read/28323026/cued-uncertainty-modulates-later-recognition-of-emotional-pictures-an-erp-study
#20
Huiyan Lin, Jing Xiang, Saili Li, Jiafeng Liang, Dongmei Zhao, Desheng Yin, Hua Jin
Previous studies have shown that uncertainty about the emotional content of an upcoming event modulates event-related potentials (ERPs) during the encoding of the event, and this modulation is affected by whether there are cues (i.e., cued uncertainty) or not (i.e., uncued uncertainty) prior to the encoding of the uncertain event. Recently, we showed that uncued uncertainty affected ERPs in later recognition of the emotional event. However, it is as yet unknown how the ERP effects of recognition are modulated by cued uncertainty...
March 16, 2017: International Journal of Psychophysiology
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