Results for ' response amplitude'

987 found
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  1.  14
    Relation between response amplitude and reinforcement.David R. Williams - 1966 - Journal of Experimental Psychology 71 (5):634.
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  2.  13
    Relation of stimulus and response amplitude to tracking performance.Bryce O. Hartman & Paul M. Fitts - 1955 - Journal of Experimental Psychology 49 (2):82.
  3.  21
    Accuracy of psychophysical judgments and physiological response amplitude.Robert J. Gatchel & Peter J. Lang - 1973 - Journal of Experimental Psychology 98 (1):175.
  4.  22
    Amplitude of response and the delay-retention effect.Yvonne Brackbill, William E. Boblitt, Douglas Davlin & John E. Wagner - 1963 - Journal of Experimental Psychology 66 (1):57.
  5.  18
    Response speed, amplitude, and resistance to extinction as joint functions of work and length of behavior chain.Robert Frank Weiss - 1961 - Journal of Experimental Psychology 61 (3):245.
  6.  14
    Voluntary response to vestibular stimulation with small amplitudes of passive rotary oscillation.R. C. Travis - 1941 - Journal of Experimental Psychology 29 (3):248.
  7.  26
    P300 amplitudes in the concealed information test are less affected by depth of processing than electrodermal responses.Matthias Gamer & Stefan Berti - 2012 - Frontiers in Human Neuroscience 6.
  8.  8
    Magnetoencephalography Studies of the Envelope Following Response During Amplitude-Modulated Sweeps: Diminished Phase Synchrony in Autism Spectrum Disorder.Timothy P. L. Roberts, Luke Bloy, Song Liu, Matthew Ku, Lisa Blaskey & Carissa Jackel - 2021 - Frontiers in Human Neuroscience 15.
    Prevailing theories of the neural basis of at least a subset of individuals with autism spectrum disorder include an imbalance of excitatory and inhibitory neurotransmission. These circuitry imbalances are commonly probed in adults using auditory steady-state responses to elicit coherent electrophysiological responses from intact circuitry. Challenges to the ASSR methodology occur during development, where the optimal ASSR driving frequency may be unknown. An alternative approach is the amplitude-modulated sweep in which the amplitude of a tone is modulated as (...)
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  9.  6
    The effect of drive reversal on latency, amplitude, and activity level.Robert H. Davis - 1957 - Journal of Experimental Psychology 53 (5):310.
  10.  14
    Effects of differential instructions, differential payoffs, and the presence or absence of feedback on the percentage, latency, and amplitude of the conditioned eyelid response.Harold D. Fishbein & I. Gormezano - 1966 - Journal of Experimental Psychology 71 (4):535.
  11.  12
    Effects of Perturbation Velocity, Direction, Background Muscle Activation, and Task Instruction on Long-Latency Responses Measured From Forearm Muscles.Jacob Weinman, Paria Arfa-Fatollahkhani, Andrea Zonnino, Rebecca C. Nikonowicz & Fabrizio Sergi - 2021 - Frontiers in Human Neuroscience 15.
    The central nervous system uses feedback processes that occur at multiple time scales to control interactions with the environment. The long-latency response is the fastest process that directly involves cortical areas, with a motoneuron response measurable 50 ms following an imposed limb displacement. Several behavioral factors concerning perturbation mechanics and the active role of muscles prior or during the perturbation can modulate the long-latency response amplitude in the upper limbs, but the interactions among many of these (...)
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  12. The information capacity of the human motor system in controlling the amplitude of movement.Paul M. Fitts - 1954 - Journal of Experimental Psychology 47 (6):381.
  13.  15
    Recruitment, latency, magnitude, and amplitude of the GSR as a function of interstimulus interval.William F. Prokasy, James T. Fawcett & John F. Hall - 1962 - Journal of Experimental Psychology 64 (5):513.
  14.  8
    Concurrent working memory task increases or decreases the flanker-related N2 amplitude.Hua Wei, Yuan Yao & Lili Zhou - 2022 - Frontiers in Psychology 13.
    Concurrent working memory task reduces available attentional control resources to perform the flanker task. However, controversy exists as to whether concurrent WM task increases or decreases flanker-related N2 amplitude. In a flanker task experiment, individuals were confronted with a low, middle, or high WM load task, while electroencephalography data were recorded. The ERP results showed a larger flanker-related N2 amplitude while completing a middle or high WM load task compared to a low one. However, completing an additional high (...)
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  15.  34
    Information capacity of discrete motor responses.Paul M. Fitts & James R. Peterson - 1964 - Journal of Experimental Psychology 67 (2):103.
  16.  9
    Performance Monitoring and Correct Response Significance in Conscientious Individuals.Mike F. Imhof & Jascha Rüsseler - 2019 - Frontiers in Human Neuroscience 13:438917.
    There is sufficient evidence to believe that variations in the error-related negativity (ERN) are linked to dispositional characteristics in individuals. However, explanations of individual differences in the amplitude of the ERN cannot be derived from functional theories of the ERN. The ERN has a counterpart that occurs after correct responses (correct-response negativity, CRN). Based on the assumption that ERN and CRN reflect an identical cognitive process, variations in CRN might be associated with dispositional characteristics as well. Higher CRN (...)
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  17.  36
    Accuracy of positioning responses as a function of spring loading in a control.Harry P. Bahrick, William F. Bennett & Paul M. Fitts - 1955 - Journal of Experimental Psychology 49 (6):437.
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  18.  10
    Neural Responses to Reward and Punishment Stimuli in Depressed Status Individuals and Their Effects on Cognitive Activities.Yutong Li, Xizi Cheng, Yahong Li & Xue Sui - 2022 - Frontiers in Psychology 12.
    Individuals in depressed status respond abnormally to reward stimuli, but the neural processes involved remain unclear. Whether this neural response affects subsequent cognitive processing activities remains to be explored. In the current study, participants, screened as depressed status individuals and healthy individuals by Beck Depression Inventory and Hospital Anxiety Depression Scale, performed both a door task and a cognitive task. Specifically, in each trial, they selected one from two identical doors based on the expectations of rewards and punishments and (...)
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  19.  29
    Frontal and occipital-parietal alpha oscillations distinguish between stimulus conflict and response conflict.Dandan Tang, Li Hu, Yi Lei, Hong Li & Antao Chen - 2015 - Frontiers in Human Neuroscience 9:119493.
    Conflicts between target and distraction can occur at the level of both stimulus and response processing. However, the neural oscillations underlying occurrence of the interference in different levels have not been understood well. Here, we reveal such a neural oscillation modulation by combining a 4:2 mapping design (two targets are mapped into one response key) with a practice paradigm (pretest, practice, and posttest) when healthy human participants were performing a novel color-word flanker task. Response time (RT) results (...)
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  20.  61
    Do Auditory Mismatch Responses Differ Between Acoustic Features?HyunJung An, Shing Ho Kei, Ryszard Auksztulewicz & Jan W. H. Schnupp - 2021 - Frontiers in Human Neuroscience 15.
    Mismatch negativity is the electroencephalographic waveform obtained by subtracting event-related potential responses evoked by unexpected deviant stimuli from responses evoked by expected standard stimuli. While the MMN is thought to reflect an unexpected change in an ongoing, predictable stimulus, it is unknown whether MMN responses evoked by changes in different stimulus features have different magnitudes, latencies, and topographies. The present study aimed to investigate whether MMN responses differ depending on whether sudden stimulus change occur in pitch, duration, location or vowel (...)
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  21.  11
    A Study of Response Inhibition in Overweight/Obesity People Based on Event-Related Potential.Ze-Nan Liu, Jing-Yi Jiang, Tai-Sheng Cai & Dai-Lin Zhang - 2022 - Frontiers in Psychology 13.
    ObjectiveTo investigate the characteristics of response inhibition of overweight/obese people, using behavior experiments combine with neural electrophysiological technology and discussing the difference in impulse level between obesity/overweight and normal-weight people through EEG data, questionnaire, and behavior experiment.Method All participants completed the Go/Nogo task; meanwhile, behavior data and 64 channel EEG data were recorded. Participants completed the Stop-Signal task and behavior date was recorded.Results During Go/Nogo task, no significant differences were found in reaction time, omission errors of the Go task (...)
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  22.  27
    Supplementary report: Generalization of a nonverbal response to aggressive verbal stimuli.James H. Geer & Arnold H. Buss - 1962 - Journal of Experimental Psychology 63 (4):413.
  23.  19
    Monosynaptic Stretch Reflex Fails to Explain the Initial Postural Response to Sudden Lateral Perturbations.Andreas Mühlbeier, Christian Puta, Kim J. Boström & Heiko Wagner - 2017 - Frontiers in Human Neuroscience 11.
    Postural reflexes are essential for locomotion and postural stability, and may play an important role in the etiology of chronic back pain. It has recently been theoretically predicted, and with the help of unilateral perturbations of the trunk experimentally confirmed that the sensorimotor control must lower the reflex amplitude for increasing reflex delays to maintain spinal stability. The underlying neuromuscular mechanism for the compensation of postural perturbations, however, is not yet fully understood. In this study, we applied unilateral and (...)
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  24.  7
    Risk decision: The self-charity discrepancies in electrophysiological responses to outcome evaluation.Min Tan, Mei Li, Jin Li, Huie Li, Chang You, Guanfei Zhang & Yiping Zhong - 2022 - Frontiers in Human Neuroscience 16:965677.
    Previous studies have examined the outcome evaluation related to the self and other, and recent research has explored the outcome evaluation of the self and other with pro-social implications. However, the evaluation processing of outcomes in the group in need remains unclear. This study has examined the neural mechanisms of evaluative processing by gambling for the self and charity, respectively. At the behavioral level, when participants make decisions for themselves, they made riskier decisions following the gain than loss in small (...)
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  25.  11
    Mechanisms of False Alarm in Response to Fear Stimulus: An Event-Related Potential Study.Xiai Wang, Jicheng Sun, Jinghua Yang, Shan Cheng, Cui Liu, Wendong Hu & Jin Ma - 2022 - Frontiers in Human Neuroscience 15.
    Background and ObjectiveThere is a paucity of research that has explored “False Alarm” mechanisms. In order to remedy this deficiency in knowledge, the present study used event-related potential technology to reveal the mechanisms underlying False Alarm in response to fear stimuli.MethodsThis study selected snakes as experimental materials and the “oddball paradigm” was used to simulate the conditions of False Alarm. The mechanism underlying False Alarm was revealed by comparing cognitive processing similarities and differences between real snakes and toy snakes.ResultsEvent-related (...)
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  26.  15
    Trait rejection sensitivity is associated with vigilance and defensive response rather than detection of social rejection cues.Taishi Kawamoto, Hiroshi Nittono & Mitsuhiro Ura - 2015 - Frontiers in Psychology 6:157020.
    Prior studies suggest that psychological difficulties arise from higher trait rejection sensitivity (RS)—heightened vigilance and differential detection of social rejection cues and defensive response to. On the other hand, from an evolutionary perspective, rapid and efficient detection of social rejection cues can be considered beneficial. We conducted a survey and an electrophysiological experiment to reconcile this seeming contradiction. We compared the effects of RS and rejection detection capability (RDC) on perceived interpersonal experiences (Study 1) and on neurocognitive processes in (...)
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  27.  8
    Motor Cortex Response to Pleasant Odor Perception and Imagery: The Differential Role of Personality Dimensions and Imagery Ability.Carmenrita Infortuna, Francesca Gualano, David Freedberg, Sapan P. Patel, Asad M. Sheikh, Maria Rosaria Anna Muscatello, Antonio Bruno, Carmela Mento, Eileen Chusid, Zhiyong Han, Florian P. Thomas & Fortunato Battaglia - 2022 - Frontiers in Human Neuroscience 16.
    BackgroundNeuroimaging studies have shown a complex pattern of brain activation during perception of a pleasant odor and during its olfactory imagery. To date, little is known regarding changes in motor cortex excitability during these tasks. Bergamot essential oil is extensively used in perfumes and cosmetics for its pleasantness. Therefore, to further our understanding of the human sense of smell, this study aimed to investigate the effect of perception and imagery of a pleasant odor on motor cortex using Transcranial magnetic stimulation.Materials (...)
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  28.  25
    Social Exclusion Down-Regulates Pain Empathy at the Late Stage of Empathic Responses: Electrophysiological Evidence.Min Fan, Jing Jie, Pinchao Luo, Yu Pang, Danna Xu, Gaowen Yu, Shaochen Zhao, Wei Chen & Xifu Zheng - 2021 - Frontiers in Human Neuroscience 15.
    Social exclusion has a significant impact on cognition, emotion, and behavior. Some behavioral studies investigated how social exclusion affects pain empathy. Conclusions were inconsistent, and there is a lack of clarity in identifying which component of pain empathy is more likely to be affected. To investigate these issues, we used a Cyberball task to manipulate feelings of social exclusion. Two groups participated in the same pain empathy task while we recorded event-related potentials when participants viewed static images of body parts (...)
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  29.  21
    Distinct Kinematic and Neuromuscular Activation Strategies During Quiet Stance and in Response to Postural Perturbations in Healthy Individuals Fitted With and Without a Lower-Limb Exoskeleton.Charles S. Layne, Christopher A. Malaya, Akshay S. Ravindran, Isaac John, Gerard E. Francisco & Jose Luis Contreras-Vidal - 2022 - Frontiers in Human Neuroscience 16.
    Many individuals with disabling conditions have difficulty with gait and balance control that may result in a fall. Exoskeletons are becoming an increasingly popular technology to aid in walking. Despite being a significant aid in increasing mobility, little attention has been paid to exoskeleton features to mitigate falls. To develop improved exoskeleton stability, quantitative information regarding how a user reacts to postural challenges while wearing the exoskeleton is needed. Assessing the unique responses of individuals to postural perturbations while wearing an (...)
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  30.  11
    The alterations in event-related potential responses to pain empathy in breast cancer survivors treated with chemotherapy.Wen Li, Yue Lv, Xu Duan, Guo Cheng, Senbang Yao, Sheng Yu, Lingxue Tang & Huaidong Cheng - 2022 - Frontiers in Psychology 13.
    BackgroundPrevious findings indicated that breast cancer patients often have dysfunction in empathy and other cognitive functions during or after chemotherapy. However, the manifestations and possible neuro-electrophysiological mechanisms of pain empathy impairment in breast cancer patients after chemotherapy were still unknown.ObjectiveThe current study aimed to investigate the potential correlations between pain empathy impairment and event-related potentials in breast cancer patients undergoing chemotherapy.MethodsTwenty-two breast cancer patients were evaluated on a neuropsychological test and pain empathy paradigm before and after chemotherapy, containing the Chinese (...)
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  31.  18
    The Affective Significance of Skin Conductance Activity During a Difficult Problem-solving Task.Anna Pecchinenda - 1996 - Cognition and Emotion 10 (5):481-504.
    The meaning of spontaneous skin conductance activity, and its relevance to appraisal theory, are examined. Spontaneous skin conductance activity is hypothesised to reflect task engagement, and thus to be correlated with appraisals of problem-focused coping potential. In a within-subjects design, subjects solved anagrams in which task difficulty was manipulated by varying both the difficulty of the anagrams and the amount of time available to solve them. In the most difficult condition, appraisals of coping potential were expected, and observed, to be (...)
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  32.  25
    Dynamic Characteristics of Microring Driven by the Symmetrically Distributed Electrostatic Force.Qingheng Meng, Yuanlin Zhang, Jin Wei, Yuh-Chung Hu, Yan Shi & Tao Yu - 2021 - Complexity 2021:1-12.
    This paper aims at investigating the dynamic characteristics of a microring driven by dual arch electrodes because they are basic elements of microelectrostatic motors. The dual arch electrodes surround the periphery of the microring and are arranged symmetrically to the center of the ring. The electrodes are fixed while the microring is flexible. The electrostatic force will deform the microring, while the deflection of the microring changes the gap between the microring and the electrodes, thereby changing the electrostatic force. Therefore, (...)
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  33.  6
    Indirect Vibration of the Upper Limbs Alters Transmission Along Spinal but Not Corticospinal Pathways.Trevor S. Barss, David F. Collins, Dylan Miller & Amit N. Pujari - 2021 - Frontiers in Human Neuroscience 15.
    The use of upper limb vibration during exercise and rehabilitation continues to gain popularity as a modality to improve function and performance. Currently, a lack of knowledge of the pathways being altered during ULV limits its effective implementation. Therefore, the aim of this study was to investigate whether indirect ULV modulates transmission along spinal and corticospinal pathways that control the human forearm. All measures were assessed under CONTROL and ULV conditions while participants maintained a small contraction of the right flexor (...)
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  34.  14
    Brain Vital Signs Detect Cognitive Improvements During Combined Physical Therapy and Neuromodulation in Rehabilitation From Severe Traumatic Brain Injury: A Case Report.Shaun D. Fickling, Trevor Greene, Debbie Greene, Zack Frehlick, Natasha Campbell, Tori Etheridge, Christopher J. Smith, Fabio Bollinger, Yuri Danilov, Rowena Rizzotti, Ashley C. Livingstone, Bimal Lakhani & Ryan C. N. D’Arcy - 2020 - Frontiers in Human Neuroscience 14:560042.
    Using a longitudinal case study design, we have tracked the recovery of motor function following severe traumatic brain injury (TBI) through a multimodal neuroimaging approach. In 2006, Canadian Soldier Captain (retired) Trevor Greene (TG) was attacked with an axe to the head while on tour in Afghanistan. TG continues intensive daily rehabilitation, which recently included the integration of physical therapy (PT) with neuromodulation using translingual neurostimulation (TLNS) to facilitate neuroplasticity. Recent findings with PT+TLNS demonstrated that recovery of motor function occurred (...)
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  35. Supporting online material for.Steven Laureys - manuscript
    Patient To examine neural responses to aurally-presented sentences, a sparse imaging technique was used to minimize interference from scanner noise. The patient was played a single sentence (or noise-equivalent) in the 7.4s silent period before a single 1.6s scan with stimulus timing jittered relative to scan onset. There were 118 spoken sentences trials, 59 signal correlated noise trials, and an additional 60 silent trials for the purpose of monitoring data quality. The signal correlated noise stimuli had the same duration, spectral (...)
     
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  36.  11
    Application of Referencing Techniques in EEG-Based Recordings of Contact Heat Evoked Potentials.Malte Anders, Björn Anders, Matthias Kreuzer, Sebastian Zinn & Carmen Walter - 2020 - Frontiers in Human Neuroscience 14.
    Evoked potentials in the amplitude-time spectrum of the electroencephalogram are commonly used to assess the extent of brain responses to stimulation with noxious contact heat. The magnitude of the N- and P-waves are used as a semi-objective measure of the response to the painful stimulus: the higher the magnitude, the more painful the stimulus has been perceived. The strength of the N-P-wave response is also largely dependent on the chosen reference electrode site. The goal of this study (...)
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  37.  48
    Affective Style and Affective Disorders: Perspectives from Affective Neuroscience.Richard J. Davidson - 1998 - Cognition and Emotion 12 (3):307-330.
    Individual differences in emotional reactivity or affective style can be decomposed into more elementary constituents. Several separable of affective style are identified such as the threshold for reactivity, peak amplitude of response, the rise time to peak and the recovery time. latter two characteristics constitute components of affective chronometry The circuitry that underlies two fundamental forms of motivation and and withdrawal-related processes-is described. Data on differences in functional activity in certain components of these are next reviewed, with an (...)
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  38.  55
    The Possibilist Transactional Interpretation and Relativity.Ruth E. Kastner - 2012 - Foundations of Physics 42 (8):1094-1113.
    A recent ontological variant of Cramer’s Transactional Interpretation, called “Possibilist Transactional Interpretation” or PTI, is extended to the relativistic domain. The present interpretation clarifies the concept of ‘absorption,’ which plays a crucial role in TI (and in PTI). In particular, in the relativistic domain, coupling amplitudes between fields are interpreted as amplitudes for the generation of confirmation waves (CW) by a potential absorber in response to offer waves (OW), whereas in the nonrelativistic context CW are taken as generated with (...)
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  39.  15
    Testing the Process Dissociation Procedure by Behavioral and Neuroimaging Data: The Establishment of the Mutually Exclusive Theory and the Improved PDP.Jianxin Zhang, Xiangpeng Wang, Jianping Huang, Antao Chen & Dianzhi Liu - 2020 - Frontiers in Psychology 11.
    The process dissociation procedure (PDP) of implicit sequence learning states that the correct inclusion-task response contains the incorrect exclusion-task response. However, there has been no research to test the hypothesis. The current study used a single variable (Stimulus Onset Asynchrony SOA: 850 ms vs. 1350 ms) between-subjects design, with pre-task resting-state fMRI, to test and improve the classical PDP to the mutually exclusive theory (MET). (1) Behavioral data and neuroimaging data demonstrated that the classical PDP has not been (...)
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  40.  13
    The Possibilist Transactional Interpretation and Relativity.Ruth E. Kastner - 2012 - Foundations of Physics 42 (8):1094-1113.
    A recent ontological modification of Cramer’s Transactional Interpretation, called “Possibilist Transactional Interpretation” or PTI, is extended to the relativistic domain. The present interpretation clarifies the concept of ‘absorption,’ which plays a crucial role in TI. In particular, in the relativistic domain, coupling amplitudes between fields are interpreted as amplitudes for the generation of confirmation waves by a potential absorber in response to offer waves, whereas in the nonrelativistic context CW are taken as generated with certainty. It is pointed out (...)
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  41.  26
    Photographic but not line-drawn faces show early perceptual neural sensitivity to eye gaze direction.Alejandra Rossi, Francisco J. Parada, Marianne Latinus & Aina Puce - 2015 - Frontiers in Human Neuroscience 9:98381.
    Our brains readily decode facial movements and changes in social attention, reflected in earlier and larger N170 event-related potentials (ERPs) to viewing gaze aversions vs. direct gaze in real faces (Puce et al. 2000). In contrast, gaze aversions in line-drawn faces do not produce these N170 differences (Rossi et al., 2014), suggesting that physical stimulus properties or experimental context may drive these effects. Here we investigated the role of stimulus-induced context on neurophysiological responses to dynamic gaze. Sixteen healthy adults viewed (...)
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  42.  21
    Gricean Expectations in Online Sentence Comprehension: An ERP Study on the Processing of Scalar Inferences.Petra Augurzky, Michael Franke & Rolf Ulrich - 2019 - Cognitive Science 43 (8):e12776.
    There is substantial support for the general idea that a formalization of comprehenders' expectations about the likely next word in a sentence helps explaining data related to online sentence processing. While much research has focused on syntactic, semantic, and discourse expectations, the present event‐related potentials (ERPs) study investigates neurolinguistic correlates of pragmatic expectations, which arise when comprehenders expect a sentence to conform to Gricean Maxims of Conversation. For predicting brain responses associated with pragmatic processing, we introduce a formal model of (...)
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  43.  32
    On the specific role of the cerebellum in motor learning and cognition: Clues from PET activation and lesion studies in man.W. T. Thach - 1996 - Behavioral and Brain Sciences 19 (3):411-433.
    Brindley proposed that we initially generate movements , under higher cerebral control. As the movement is practiced, the cerebellum learns to link within itself the context in which the movement is made to the lower level movement generators. Marr and Albus proposed that the linkage is established by a special input from the inferior olive, which plays upon an input-output element within the cerebellum during the period of the learning. When the linkage is complete, the occurrence of the context (represented (...)
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  44. The Effect of Background Music on Inhibitory Functions: An ERP Study.Anja Burkhard, Stefan Elmer, Denis Kara, Christian Brauchli & Lutz Jäncke - 2018 - Frontiers in Human Neuroscience 12:374217.
    The influence of background music on cognitive functions is still a matter of debate. In this study, we investigated the influence of background music on executive functions (particularly on inhibitory functions). Participants completed a standardized cued Go/NoGo task during three different conditions while an EEG was recorded (1: with no background music, 2: with relaxing or 3: with exciting background music). In addition, we collected reaction times, omissions, and commissions in response to the Go and NoGo stimuli. From the (...)
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  45. fMRI measurements of color in macaque and human.Mark Augath - unknown
    We have used fMRI to measure responses to chromatic and achromatic contrast in retinotopically defined regions of macaque and human visual cortex. We make four observations. Firstly, the relative amplitudes of responses to color and luminance stimuli in macaque area V1 are similar to those previously observed in human fMRI experiments. Secondly, the dorsal and ventral subdivisions of macaque area V4 respond in a similar way to opponent (L j M)-cone chromatic contrast suggesting that they are part of a single (...)
     
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  46. Phonological Ambiguity Detection Outside of Consciousness and Its Defensive Avoidance.Ariane Bazan, Ramesh Kushwaha, E. Samuel Winer, J. Michael Snodgrass, Linda A. W. Brakel & Howard Shevrin - 2019 - Frontiers in Human Neuroscience 13.
    Freud proposes that in unconscious processing, logical connections are also (heavily) based upon phonological similarities. Repressed concerns, for example, would also be expressed by way of phonologic ambiguity. In order to investigate a possible unconscious influence of phonological similarity, 31 participants were submitted to a tachistoscopic subliminal priming experiment, with prime and target presented at 1ms. In the experimental condition, the prime and one of the 2 targets were phonological reversed forms of each other, though graphemically dissimilar (e.g., “nice” and (...)
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  47. Effect of 30 Hz theta burst transcranial magnetic stimulation on the primary motor cortex in children and adolescents.Ernest V. Pedapati, Donald L. Gilbert, Paul S. Horn, David A. Huddleston, Cameron S. Laue, Nasrin Shahana & Steve W. Wu - 2015 - Frontiers in Human Neuroscience 9:132790.
    Fourteen healthy children (13.8±2.2 years, range 10 to 16; M:F=5:9) received 30 Hz intermittent theta burst transcranial magnetic stimulation (iTBS) with a stimulation intensity of 70% of resting motor threshold (RMT) with a total of 300 (iTBS300) pulses. All volunteers were free of neurologic, psychiatric and serious medical illnesses, not taking any neuropsychiatric medications, and did not have any contraindications to Transcranial Magnetic Stimulation. Changes in the mean amplitudes of motor-evoked potentials from baseline following iTBS were expressed as a ratio (...)
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  48. Psychophysics of EEG alpha state discrimination.Jon A. Frederick - 2012 - Consciousness and Cognition 21 (3):1345-1354.
    Nearly all research in neurofeedback since the 1960s has focused on training voluntary control over EEG constructs. By contrast, EEG state discrimination training focuses on awareness of subjective correlates of EEG states. This study presents the first successful replication of EEG alpha state discrimination first reported by Kamiya . A 150-s baseline was recorded in 106 participants. During the task, low triggered a prompt. Participants indicated “high” or “low” with a keypress response and received immediate feedback. Seventy-five percent of (...)
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  49.  17
    Sensory Re-weighting for Postural Control in Parkinson’s Disease.Kelly J. Feller, Robert J. Peterka & Fay B. Horak - 2019 - Frontiers in Human Neuroscience 13:437406.
    Postural instability in Parkinson’s disease (PD) is characterized by impaired postural responses to transient perturbations, increased postural sway in stance and difficulty transitioning between tasks. In addition, some studies suggest that loss of dopamine in the basal ganglia due to PD results in difficulty using proprioceptive information for motor control. Here, we quantify the ability of subjects with PD and age-matched control subjects to use and re-weight sensory information for postural control during steady-state conditions of continuous rotations of the stance (...)
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  50. ERP Correlates of Verbal and Numerical Probabilities in Risky Choices: A Two-Stage Probability Processing View.Shu Li, Xue-Lei Du, Qi Li, Yan-Hua Xuan, Yun Wang & Li-Lin Rao - 2015 - Frontiers in Human Neuroscience 9:141579.
    Two kinds of probability expressions, verbal and numerical, have been used to characterize the uncertainty that people face. However, the question of whether verbal and numerical probabilities are cognitively processed in a similar manner remains unresolved. From a levels-of-processing perspective, verbal and numerical probabilities may be processed differently during early sensory processing but similarly in later semantic-associated operations. This event-related potential (ERP) study investigated the neural processing of verbal and numerical probabilities in risky choices. The results showed that verbal probability (...)
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