Attention

311.

The rhythm of the heart in the blink of an eye: emotion-modulated startle magnitude covaries with heart rate variability.

Emotion-modulated startle is a robust phenomenon that has been demonstrated in a wide range of experimental situations. Similarly, heart rate variability (HRV) has been associated with a diverse range of processes including affective and attentional ...
Elisabeth Ruiz-Padial, John J Sollers, Jaime Vila, Julian F Thayer (Psychophysiology, 200303)
rhythm-heart-blink-eye-emotion-modulated-startle-magnitude-covaries.asp

312.

Informational masking caused by contralateral stimulation.

Although informational masking is thought to reflect central mechanisms, the effects are generally much stronger when the target and masker are presented to the same ear than when they are presented to different ears. However, the results of a recent ...
Gerald Kidd, Christine R Mason, Tanya L Arbogast, Douglas S Brungart, Brian D Simpson (J Acoust Soc Am, 200303)
informational-masking-caused-contralateral-stimulation.asp

313.

History matters: the preview benefit in search is not onset capture.

Visual search for a conjunction target is made easier when distractor items are temporally segregated over time to produce two separate old and new groups (the new group containing the target item). The benefit of presenting half the distractors first is ...
Melina A Kunar, Glyn W Humphreys, Kelly J Smith (Psychol Sci, 200303)
history-matters-preview-benefit-search-not-onset-capture.asp

314.

Low-level lead exposure, executive functioning, and learning in early childhood.

The current paper presents evidence relating low-level lead exposure to impaired executive functioning in young children. Using the Shape School task, we assessed focused attention, attention switching, working memory, and the ability to inhibit ...
Richard L Canfield, Donna A Kreher, Craig Cornwell, Charles R Henderson (Neuropsychol Dev Cogn Sect C Child Neuropsychol, 200303)
low-level-lead-exposure-executive-functioning-learning-early-childhood.asp

315.

Forward and backward recall: different response time patterns, same retrieval order.

How do people retrieve information in forward and backward recall? To address this issue, we examined response times in directional recall as a function of serial position and list length. Participants memorized lists of four to six words and entered ...
John G Thomas, Haley R Milner, Karl F Haberlandt (Psychol Sci, 200303)
forward-backward-recall-different-response-time-patterns-same.asp

316.

Emotional valence modulates activity in the posterior fusiform gyrus and inferior medial prefrontal cortex in social perception.

Previous studies have shown that during the presentation of emotionally loaded visual stimuli, activity increases in the visual and limbic cortices. This study focuses on empathic reactions induced by presenting pictures of situations and facial ...
Jacob Geday, Albert Gjedde, Anne Sophie Boldsen, Ron Kupers (Neuroimage, 200303)
emotional-valence-modulates-activity-posterior-fusiform-gyrus.asp

317.

Dipole source localization and fMRI of simultaneously recorded data applied to somatosensory categorization.

In this study, the feasibility of dipole source localization (DSL) and coregistration with functional magnetic resonance imaging (fMRI) activation patterns on the basis of simultaneously acquired data is demonstrated. Brain activity was mapped during the ...
S Thees, F Blankenburg, B Taskin, G Curio, A Villringer (Neuroimage, 200303)
dipole-source-localization-fmri-simultaneously-recorded-data-applied.asp

318.

Frequency effects of Chinese character processing in the brain: an event-related fMRI study.

Knowing how the brain processes Chinese characters of different frequencies of occurrence may shed light on the extent to which orthographic variations of different languages can influence reading processes in the brain. In the present study, ...
Wen-Jui Kuo, Tzu-Chen Yeh, Chia-Ying Lee, Y u-Te Wu, Chi-Cher Chou, Low-Tone Ho, Daisy L Hung, Ovid J L Tzeng, Jen-Chuen Hsieh (Neuroimage, 200303)
frequency-effects-chinese-character-processing-brain-event-related.asp

319.

Parametric analysis of rate-dependent hemodynamic response functions of cortical and subcortical brain structures during auditorily cued finger tapping: a fMRI study.

A multitude of functional imaging studies revealed a mass activation effect at the level of the sensorimotor cortex during repetitive finger-tapping or finger-to-thumb opposition tasks in terms of either a stepwise or a monotonic relationship between ...
Axel Riecker, Dirk Wildgruber, Klaus Mathiak, Wolfgang Grodd, Hermann Ackermann (Neuroimage, 200303)
parametric-analysis-rate-dependent-hemodynamic-response-functions.asp

320.

Estimating efficiency a priori: a comparison of blocked and randomized designs.

This technical note deals with a priori estimation of efficiency of functional magnetic resonance imaging (fMRI) designs. The efficiency of an estimator is a measure of how reliable it is and depends on error variance (the variance not modeled by ...
Andrea Mechelli, Cathy J Price, Rik N A Henson, Karl J Friston (Neuroimage, 200303)
estimating-efficiency-priori-comparison-blocked-randomized-designs.asp