Abstract:
:The visual responsiveness and spatial tuning of frontal eye field (FEF) neurons were determined using a delayed memory saccade task. Neurons with visual responses were then tested for direction selectivity using moving random dot patterns centered in the visual receptive field. The preferred axis of motion showed a significant tendency to be aligned with the receptive-field location so as to favor motion toward or away from the center of gaze. Centrifugal (outward) motion was preferred over centripetal motion. Motion-sensitive neurons in FEF thus appear to have a direction bias at the population level. This bias may facilitate the detection or discrimination of expanding optic flow patterns. The direction bias is similar to that seen in visual area MT and in posterior parietal cortex, from which FEF receives afferent projections. The outward motion bias may explain asymmetries in saccades made to moving targets. A representation of optic flow in FEF might be useful for planning eye movements during navigation.
journal_name
Vis Neuroscijournal_title
Visual neuroscienceauthors
Xiao Q,Barborica A,Ferrera VPdoi
10.1017/S0952523806231055subject
Has Abstractpub_date
2006-01-01 00:00:00pages
49-60issue
1eissn
0952-5238issn
1469-8714pii
S0952523806231055journal_volume
23pub_type
杂志文章abstract::Linking propositions have played an important role in refining our understanding of the relationship between neural activity and perception. Over the last 40 years, visual evoked potentials (VEPs) have been used in many different ways to address questions of the relationship between neural activity and perception. Thi...
journal_title:Visual neuroscience
pub_type: 杂志文章,评审
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更新日期:2013-11-01 00:00:00
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journal_title:Visual neuroscience
pub_type: 杂志文章
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journal_title:Visual neuroscience
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journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/s0952523800010531
更新日期:1991-02-01 00:00:00
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journal_title:Visual neuroscience
pub_type: 杂志文章
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更新日期:2006-05-01 00:00:00
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journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/s0952523800010920
更新日期:1991-07-01 00:00:00
abstract::Using autoradiographic and biochemical techniques, we studied the sodium-dependent forward and reverse transport of the neurotransmitter histamine in an arthropod photoreceptor in order to test whether the transporter plays a central role in visual signal transfer at this synapse. In particular, we asked whether the h...
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pub_type: 杂志文章
doi:10.1017/s0952523802193084
更新日期:2002-05-01 00:00:00
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journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/s0952523800005009
更新日期:1992-05-01 00:00:00
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journal_title:Visual neuroscience
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doi:10.1017/S0952523805224045
更新日期:2005-07-01 00:00:00
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doi:10.1017/s0952523899165143
更新日期:1999-09-01 00:00:00
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journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/s0952523800003667
更新日期:1993-03-01 00:00:00
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journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/s0952523800005496
更新日期:1989-10-01 00:00:00
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journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/S0952523807070113
更新日期:2007-01-01 00:00:00
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journal_title:Visual neuroscience
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doi:10.1017/s0952523801181125
更新日期:2001-01-01 00:00:00
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journal_title:Visual neuroscience
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doi:10.1017/S0952523814000248
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journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/s0952523800007537
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journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/s0952523804041045
更新日期:2004-01-01 00:00:00
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journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/s0952523800006489
更新日期:1992-01-01 00:00:00
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journal_title:Visual neuroscience
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doi:10.1017/s0952523899162060
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doi:10.1017/s0952523800009573
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journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/s0952523800001590
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doi:10.1017/S0952523809090014
更新日期:2009-01-01 00:00:00
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journal_title:Visual neuroscience
pub_type: 杂志文章,评审
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更新日期:2014-09-01 00:00:00
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journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/s0952523800008774
更新日期:1997-01-01 00:00:00
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journal_title:Visual neuroscience
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journal_title:Visual neuroscience
pub_type: 杂志文章
doi:10.1017/s095252380000852x
更新日期:1996-07-01 00:00:00