Stimulus-specific adaptation, habituation and change detection in the gaze control system

Gutfreund, Yoram

doi:10.1007/s00422-012-0497-3

Cited by 56 publications

(51 citation statements)

References 106 publications

(138 reference statements)

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“…The entopallium receives information about salient stimuli from the OT through the tectofugal pathway (Marin et al 2007;Reches and Gutfreund 2008) and may play a role in mediating orienting responses (Gutfreund 2012). We therefore examined the trial-by-trial correlations between the PDR and activity (evoked and ongoing) recorded in the entopallium.…”

Section: Trial-by-trial Correlationsmentioning

confidence: 99%

Ongoing activity in the optic tectum is correlated on a trial-by-trial basis with the pupil dilation response

Netser¹,

Dutta²,

Gutfreund³

2014

Journal of Neurophysiology

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Netser S, Dutta A, Gutfreund Y. Ongoing activity in the optic tectum is correlated on a trial-by-trial basis with the pupil dilation response. J Neurophysiol 111: 918 -929, 2014. First published December 4, 2013; doi:10.1152/jn.00527.2013.-The selection of the appropriate stimulus to induce an orienting response is a basic task thought to be partly achieved by tectal circuitry. Here we addressed the relationship between neural activity in the optic tectum (OT) and orienting behavioral responses. We recorded multiunit activity in the intermediate/deep layers of the OT of the barn owl simultaneously with pupil dilation responses (PDR, a well-known orienting response common to birds and mammals). A trial-by-trial analysis of the responses revealed that the PDR generally did not correlate with the evoked neural responses but significantly correlated with the rate of ongoing neural activity measured shortly before the stimulus. Following this finding, we characterized ongoing activity in the OT and showed that in the intermediate/ deep layers it tended to fluctuate spontaneously. It is characterized by short periods of high ongoing activity during which the probability of a PDR to an auditory stimulus inside the receptive field is increased. These high-ongoing activity periods were correlated with increase in the power of gamma band local field potential oscillations. Through dual recordings, we showed that the correlation coefficients of ongoing activity decreased as a function of distance between recording sites in the tectal map. Significant correlations were also found between recording sites in the OT and the forebrain entopallium. Our results suggest that an increase of ongoing activity in the OT reflects an internal state during which coupling between sensory stimulation and behavioral responses increases.

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Section: Trial-by-trial Correlationsmentioning

confidence: 99%

Ongoing activity in the optic tectum is correlated on a trial-by-trial basis with the pupil dilation response

Netser¹,

Dutta²,

Gutfreund³

2014

Journal of Neurophysiology

Self Cite

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“…More generally, recent work on non-linguistic sensory adaptation (mostly in lowlevel vision and audition) has revealed that many negative aftereffects which were originally attributed to the fatigue of neuronal feature detectors are better explained by neural populations adjusting their processing to maximize the transmission of information about the current stimulus ensemble (Brenner et al, 2000;Fairhall et al, 2001;Gutfreund, 2012;Kohn, 2007;Sharpee et al, 2006;Webster et al, 2005), which parallels recent developments in the understanding of perceptual learning in low-level perceptual tasks (Bejjanki, Beck, Lu, & Pouget, 2011;Harris, Gliksberg, & Sagi, 2012). Maximizing information transmission depends on the statistics of the environment at many different levels.…”

Section: Discussionmentioning

confidence: 99%

“…First, work on non-linguistic sensory adaptation has established that adaptation goes far beyond fatigue of feedforward feature detectors (Brenner et al, 2000;Dragoi et al, 2000;Fairhall et al, 2001;Gutfreund, 2012;Kohn & Movshon, 2004;Kohn, 2007;Sharpee et al, 2006;Webster et al, 2005). In particular, there is tentative evidence that sensory adaptation serves to increase the efficiency of the representation of sensory information, based on the statistical or distributional properties of recent sensory input.…”

Section: Discussionmentioning

confidence: 99%

“…We now know that adaptation does not just reduce the firing of neurons overall but actually changes their tuning, such that some stimuli might even elicit higher firing rates after adaptation (Dragoi, Sharma, & Sur, 2000;Gutfreund, 2012;Kohn & Movshon, 2004). Moreover, these changes in tuning have been shown to be coordinated across populations of neurons, and often in ways that increase the amount of information that is transmitted about stimuli 148 in the local environment (Brenner et al, 2000;Fairhall et al, 2001;Gutnisky & Dragoi, 2008;Sharpee et al, 2006).…”

Section: Sensory Adaptation As Distributional Learningmentioning

confidence: 99%

“…This leads to a corollary to the link between sensory statistics and the perceptual system: in a world where sensory statistics change from one situation to the next, the perceptual system must adapt to these changes. Perceptual systems are, in fact, extremely adaptable, and this adaptation has been linked to changes in sensory statistics (Barlow & Földiák, 1989;Brenner, Bialek, & de Ruyter Van Steveninck, 2000;Fairhall, Lewen, Bialek, & de Ruyter Van Steveninck, 2001;Gutfreund, 2012;Sharpee et al, 2006;Webster, Werner, & Field, 2005;Wei & Stocker, 2012;Kohn, 2007). This work suggests that, at the very least, perceptual systems are tracking changes in sensory statistics.…”

Section: Introductionmentioning

confidence: 98%

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Perception in a Variable but Structured World: The Case of Speech Perception

Kleinschmidt¹

2017

Preprint

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Perceptual systems have to make sense out of a world that is not only noisy and ambiguous, but that also varies from situation to situation. Human speech perception is a perceptual domain where this problem has long been acknowledged: individual talkers vary substantially in how they produce linguistic units using acoustic cues. Yet, how the speech system solves this problem of talker variability remains poorly understood. This thesis presents a computational framework---the ideal adapter---for understanding this problem and how the speech perception system solves it. The basic insight of this framework is that variability in speech is not arbitrary but rather structured: talkers are reasonably consistent in the way they produce cues, and individual talkers tend to cluster into groups by gender, regional background, etc. This structure means that listeners can use their previous experience with other talkers to guide perception of unfamiliar talkers, as well as familiar talkers that they encounter again. This framework unifies a large and messy literature on how listeners cope with talker variability, leads to quantitative models that provide good fits to human behavior in a variety of situations, and makes specific, testable predictions that open up new frontiers in understanding speech perception. This framework also applies to perception in general, and highlights how speech perception can serve as a model organism for understanding how perceptual systems cope with a variable but structured world.

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The visual system of a Palaeognathous bird: Visual field, retinal topography and retino‐central connections in the Chilean Tinamou (Nothoprocta perdicaria)

Krabichler

Vega‐Zuniga

Morales

et al. 2014

J of Comparative Neurology

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Most systematic studies of the avian visual system have focused on Neognathous species, leaving virtually unexplored the Palaeognathae, comprised of the flightless ratites and the South American tinamous. We investigated the visual field, the retinal topography, and the pattern of retinal and centrifugal projections in the Chilean tinamou, a small Palaeognath of the family Tinamidae. The tinamou has a panoramic visual field with a small frontal binocular overlap of 20°. The retina possesses three distinct topographic specializations: a horizontal visual streak, a dorsotemporal area, and an area centralis with a shallow fovea. The maximum ganglion cell density is 61,900/ mm(2) , comparable to Falconiformes. This would provide a maximal visual acuity of 14.0 cycles/degree, in spite of relatively small eyes. The central retinal projections generally conform to the characteristic arrangement observed in Neognathae, with well-differentiated contralateral targets and very few ipsilateral fibers. The centrifugal visual system is composed of a considerable number of multipolar centrifugal neurons, resembling the "ectopic" neurons described in Neognathae. They form a diffuse nuclear structure, which may correspond to the ancestral condition shared with other sauropsids. A notable feature is the presence of terminals in deep tectal layers 11-13. These fibers may represent either a novel retinotectal pathway or collateral branches from centrifugal neurons projecting to the retina. Both types of connections have been described in chicken embryos. Our results widen the basis for comparative studies of the vertebrate visual system, stressing the conserved character of the visual projections' pattern within the avian clade.

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Stimulus-specific adaptation, habituation and change detection in the gaze control system

Cited by 56 publications

References 106 publications

Ongoing activity in the optic tectum is correlated on a trial-by-trial basis with the pupil dilation response

Ongoing activity in the optic tectum is correlated on a trial-by-trial basis with the pupil dilation response

Perception in a Variable but Structured World: The Case of Speech Perception

The visual system of a Palaeognathous bird: Visual field, retinal topography and retino‐central connections in the Chilean Tinamou (Nothoprocta perdicaria)

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