Spatial and temporal visual properties of single neurons in the suprageniculate nucleus of the thalamus

Paróczy, Zsuzsanna; Nagy, Attila; Márkus, Zita; Waleszczyk, Wioletta J.; Wypych, Marek; Benedek, György

doi:10.1016/j.neuroscience.2005.10.068

Cited by 26 publications

(36 citation statements)

References 45 publications

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“…The temporal frequency properties of the SCs, SCi, Sg and CN are also similar. The neurons responded optimally to high temporal frequencies displayed high temporal frequency cut-off values and narrow temporal frequency tuning [28][29][30][31]36,37]. These findings indicate that these neurons act as good spatio-temporal filters in the low spatial and high temporal frequency domain.…”

Section: Discussionmentioning

confidence: 73%

“…Furthermore the majority of the neurons showed band pass temporal frequency tuning with a clear optimal temporal frequency in the high temporal frequency domain. Temporal high-pass neurons were also found, but we recorded no temporal low-pass units in the SCs, SCi, Sg and the CN (for a more detailed description of the spatio-temporal properties of the SCs, SCi, Sg and the CN see our previous publications [28][29][30][31]). …”

Section: Spatio-temporal Response Characteristics Of Neurons In the Amentioning

confidence: 70%

“…Thus, the analysis of the spatiotemporal filter properties can contribute to the understanding of the role of the ascending tectofugal system in visual information processing and related behavioral sensorimotor actions. The low spatial and high temporal frequency preference of the cells in the ascending tectofugal system suggests that it is strongly dominated by Y and W signals, and contradicts a significant role of the X signal in this system [29,49]. The ascending tectofugal visual system can be involved in novelty detection and motion perception.…”

Section: Discussionmentioning

confidence: 97%

“…The neurons of different structures of the ascending tectofugal system (i.e. in the SC, the Sg of the posterior thalamus, the visual associative cortex along the anterior ectosylvian cortex (AES cortex) and the caudate nucleus (CN) neurons) prefer low spatial and high temporal frequencies and display narrow spatial and temporal frequency tuning [19,[28][29][30][31].…”

Section: Introductionmentioning

confidence: 99%

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Spatio-temporal visual properties in the ascending tectofugal system

et al. 2010

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Section: Discussionmentioning

confidence: 73%

Section: Spatio-temporal Response Characteristics Of Neurons In the Amentioning

confidence: 70%

Section: Discussionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Spatio-temporal visual properties in the ascending tectofugal system

et al. 2010

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“…All the experiments were performed on anesthetized, immobilized, Furthermore, the spatio-temporal response properties are also similar in the structures of this system (Nagy et al, 2003c;Paróczy et al, 2006;Nagy et al, 2008). Yet, a detailed, comprehensive analysis of these visual properties has been missing until now.…”

Section: Visual Properties Of the Neurons Within The Ascending Tectofmentioning

confidence: 99%

Functional cooperation between the caudate nucleus and the posterior thalamus in visual information processing

Rokszin

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Evaluation of inputs to rat primary auditory cortex from the suprageniculate nucleus and extrastriate visual cortex

Smith

Manning

Uhlrich

2010

J of Comparative Neurology

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Evidence indicates that visual stimuli influence cells in primary auditory cortex. To evaluate potential sources of this visual input and how they enter into circuitry of the auditory cortex, we examined axonal terminations in primary auditory cortex from non-primary extrastriate visual cortex (V2M, V2L) and from the multimodal thalamic suprageniculate nucleus (SG). Gross biocytin/BDA injections into SG or extrastriate cortex labeled inputs terminating primarily in superficial and deep layers. SG projects primarily to layers I, V and VI, V2M and V2L project primarily to layers I and VI with V2L also targeting layers II/III. Layer I inputs differ in that SG terminals are concentrated superficially, V2L deeper and V2M are equally distributed throughout. Individual axonal reconstructions document that single axons can 1) innervate multiple layers, 2) run considerable distances in layer I, and 3) run preferentially in the dorsoventral direction similar to isofrequency axes. At the electron microscopic level SG and V2M terminals are 1) the same size regardless of layer, 2) non-GABAergic, 3) smaller than ventral medial geniculate terminals synapsing in layer IV and 4) make asymmetric synapses onto dendrites/spines which 5) are non-GABAergic and 6) are slightly larger in layer I. Thus, both areas provide a substantial feedback-like input with differences that may indicate potentially different roles.

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Spatial and temporal visual properties of single neurons in the suprageniculate nucleus of the thalamus

Cited by 26 publications

References 45 publications

Spatio-temporal visual properties in the ascending tectofugal system

Spatio-temporal visual properties in the ascending tectofugal system

Functional cooperation between the caudate nucleus and the posterior thalamus in visual information processing

Evaluation of inputs to rat primary auditory cortex from the suprageniculate nucleus and extrastriate visual cortex

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