Results 101 to 110 of about 5,620,672 (313)

Distinct and convergent visual processing of high and low spatial frequency information in faces. [PDF]

open access: yes, 2007
We tested for differential brain response to distinct spatial frequency (SF) components in faces. During a functional magnetic resonance imaging experiment, participants were presented with "hybrid" faces containing superimposed low and high SF ...
Vuilleumier, P   +15 more
core   +1 more source

Artificial molecular machines and motors—Design and control of nanoscale motion

open access: yesFEBS Letters, EarlyView.
Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley   +1 more source

Attentional biases towards threat: the concomitant presence of difficulty of disengagement and attentional avoidance in low trait anxious individuals

open access: yesFrontiers in Psychology, 2014
Attentional biases toward threat (ABTs) have been described in high anxious individuals and in clinical samples whereas they have been rarely reported in non-clinical samples (Bar-Haim et al., 2007; Cisler and Koster, 2010). Three kinds of ABTs have been
Laura eSagliano   +4 more
doaj   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

open access: yesMolecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

rTMS over bilateral inferior parietal cortex induces decrement of spatial sustained attention

open access: yesFrontiers in Human Neuroscience, 2013
Sustained attention is an essential brain function that enables a subject to maintain attention level over the time of a task. In previous work, the right inferior parietal lobe (IPL) has been reported as one of the main brain regions related to ...
Jeyeon eLee   +12 more
doaj   +1 more source

The modulation of information processing by reward expectation and spatial attention [PDF]

open access: yes, 2010
Reward expectation and spatial attention both exert powerful control over behaviour and modulate neural activity. The experiments in this thesis aimed to chart the dynamics of reward expectation effects across the time course of information processing ...
Baines, Stephanie   +2 more
core   +1 more source

A novel quinazolinone insulin receptor inhibitor and its synergy with an EGFR inhibitor in glucose‐driven glioblastoma

open access: yesMolecular Oncology, EarlyView.
The novel styrylquinazolinone‐based molecule W1B effectively suppresses glioblastoma by inhibiting IGF1R and EGFR. In high‐glucose microenvironments driving tumor resistance, W1B acts synergistically with the EGFR inhibitor dacomitinib. This combination safely blocks compensatory survival signaling in zebrafish xenograft models. Showcasing promising in
Patryk Rurka   +9 more
wiley   +1 more source

Isochronous sequential presentation helps children orient their attention in time.

open access: yesFrontiers in Psychology, 2016
Knowing when an event is likely to occur allows attentional resources to be oriented towards that moment in time, enhancing processing of the event. We previously found that children (mean age 11 years) are unable to use endogenous temporal cues (line ...
Katherine A Johnson   +4 more
doaj   +1 more source

Does cultural background predict the spatial distribution of attention?

open access: yes, 2019
The current study aimed to explore cultural differences in the covert spatial distribution of attention. In particular, we tested whether those born in an East Asian country adopted a different distribution of attention compared to individuals born in a ...
Lawrence, Rebecca K   +4 more
core   +1 more source

Exploring BOLD changes during spatial attention in non-stimulated visual cortex [PDF]

open access: yes, 2009
Blood oxygen level-dependent (BOLD) responses were measured in parts of primary visual cortex that represented unstimulated visual field regions at different distances from a stimulated central target location.
Andreas Kleinschmidt   +9 more
core   +2 more sources

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