Attention

31.

Effects of pictorially-defined surfaces on visual search.

Three experiments of visual search for a cube (for a square pillar in Experiment 3) with an odd conjunction of orientation of faces and color (a cube with a red top face and a green right face among cubes with a green top face and a red right face, for ...
Hiromi Morita, Takatsune Kumada (Vision Res, 200308)
effects-pictorially-defined-surfaces-visual-search.asp

32.

In vitro pharmacological characterization of (+/-)-4-[2-(1-methyl-2-pyrrolidinyl)ethyl]thio]phenol hydrochloride (SIB-1553A), a nicotinic acetylcholine receptor ligand.

SIB-1553A ((+/-)-4-[2-(1-methyl-2-pyrrolidinyl)ethyl]thio]phenol HCl) is a neuronal nicotinic acetylcholine receptor (nAChR) ligand which displaced the binding of [3H]nicotine (NIC) to the rat brain nAChRs with an IC(50) value of 110 nM with no ...
Tadimeti S Rao, Pamala B Adams, Lucia D Correa, Emily M Santori, Aida I Sacaan, Richard T Reid, Carla M Suto, Jean Michel Vernier (Brain Res, 200308)
vitro-pharmacological-characterization---methyl-pyrrolidinyl.asp

33.

Visual presentation of single letters activates a premotor area involved in writing.

In the present fMRI study, we addressed the question as to whether motor-perceptual interactions might be involved in reading. Recognizing the letters encountered when reading is generally assumed to be a purely visual process, yet because we know how to ...
Marieke Longcamp, Jean-Luc Anton, Muriel Roth, Jean-Luc Velay (Neuroimage, 200308)
visual-presentation-single-letters-activates-premotor-area-involved.asp

34.

Cognitive control mechanisms revealed by ERP and fMRI: evidence from repeated task-switching.

We investigated the extent to which a common neural mechanism is involved in task set-switching and response withholding, factors that are frequently confounded in task-switching and go/no-go paradigms. Subjects brain activity was measured using ...
R Swainson, R Cunnington, G M Jackson, C Rorden, A M Peters, P G Morris, S R Jackson (J Cogn Neurosci, 200308)
cognitive-control-mechanisms-revealed-erp-fmri-evidence-repeated-task.asp

35.

Vigilance. Evolution and definition for caregivers of family members with Alzheimers disease.

The language of caregiving relies heavily on terms that are frequently negative such as caregiver stress and burden, but these are not universally accepted phenomenon. The purpose of this article is to report on the development of caregiver vigilance and ...
Diane Feeney Mahoney (J Gerontol Nurs, 200308)
vigilance-evolution-definition-caregivers-family-members-alzheimer-s.asp

36.

Hypothalamic-pituitary-adrenal reactivity in boys with attention deficit hyperactivity disorder.

The hypothesis whether subjects with attention-deficit/ hyperactivity disorder (ADHD), who showed under-reactivity of the hypothalamic-pituitary-adrenal (HPA) axis to stress, would make more commission errors in attention tasks, was examined. Forty-three ...
Hyun Ju Hong, Dong Won Shin, Eun Ha Lee, Youn Hee Oh, Kyung Sun Noh (Yonsei Med J, 200308)
hypothalamic-pituitary-adrenal-reactivity-boys-attention-deficit.asp

37.

Influence of fMRI data sampling on the temporal characterization of the hemodynamic response.

Experimental and modeling studies were used to estimate the effect of different sampling rates (repetition times, TR) and different sampling positions on the estimates of the temporal properties of the hemodynamic response function (HRF) derived from ...
Bixente Dilharreguy, Richard A Jones, Chrit T W Moonen (Neuroimage, 200308)
influence-fmri-data-sampling-temporal-characterization-hemodynamic.asp

38.

Mixed blocked/event-related designs separate transient and sustained activity in fMRI.

Recent functional magnetic resonance imaging (fMRI) studies using mixed blocked/event-related designs have shown activity consistent with separable sustained task-related processes and transient trial-related processes. In the mixed design, control ...
Kristina M Visscher, Francis M Miezin, James E Kelly, Randy L Buckner, David I Donaldson, Mark P McAvoy, Vidya M Bhalodia, Steven E Petersen (Neuroimage, 200308)
mixed-blocked-event-related-designs-separate-transient-sustained.asp

39.

Context-dependent cortical activation in response to financial reward and penalty: an event-related fMRI study.

An event-related fMRI technique was used to assess neural responses to financial reward and penalty during a simple gambling task. We attempted to determine whether brain activities are dependent on the unique context of an event sequence. Thirty-six ...
Yuko Akitsuki, Motoaki Sugiura, Jobu Watanabe, Keiichi Yamashita, Yuko Sassa, Shuichi Awata, Hiroo Matsuoka, Yasuhiro Maeda, Yoshihiko Matsue, Hiroshi Fukuda, Ryuta Kawashima (Neuroimage, 200308)
context-dependent-cortical-activation-response-financial-reward.asp

40.

Dynamic event-related potentials and rapid source analysis reveals an intermittent short-lasting dysfrontality in schizophrenia.

Neuroimaging studies have identified regional brain dysfunctions in schizophrenia, but their dynamic consequences remain unclear. This study reports electrophysiological evaluation of medicated schizophrenic patients during performance of the Wisconsin ...
J A González-Hernández, I Cedeño, C Pita-Alcorta, L Díaz-Comas, L Galán, P Figueredo-Rodriguez (Neuroimage, 200308)
dynamic-event-related-potentials-rapid-source-analysis-reveals.asp