2014
DOI: 10.1016/j.conb.2013.12.010
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The perceptual logic of smell

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Cited by 53 publications
(66 citation statements)
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“…4). The uncertain relationship between chemical similarity of odorants and the corresponding perceptual similarity 32 raises the question whether other groupings may also show a strong behavioral effect. We repeated the analysis of group effect as done for tiglates and non-tiglates, this time with all possible divisions of the 16 odorants into two groups of 8 (there are 12870 possible 8-member groups).…”
Section: Resultsmentioning
confidence: 99%
See 1 more Smart Citation
“…4). The uncertain relationship between chemical similarity of odorants and the corresponding perceptual similarity 32 raises the question whether other groupings may also show a strong behavioral effect. We repeated the analysis of group effect as done for tiglates and non-tiglates, this time with all possible divisions of the 16 odorants into two groups of 8 (there are 12870 possible 8-member groups).…”
Section: Resultsmentioning
confidence: 99%
“…Since odorant space is not easily parameterized and defined 32,51 , a complete analysis of the behavioral capacity is impossible and odorant choice may affect the conclusions from behavioral experiments. We chose the odorants to be used in the task with two goals in mind: 1) making the task difficult, to allow for failures in performance, and 2) having variable similarities between odorants to study the dependence of difficulty of figure-ground segregation on figure-ground similarity.…”
Section: Methodsmentioning
confidence: 99%
“…First, the necklace could discriminate between odors, albeit through distinct mechanisms from the conventional olfactory system. Odor-evoked differences in activity in individual necklace glomeruli could be generated by subtle differences in MS4A expression within subsets of sensory neurons (but see Figure 5); such differences could also be caused by conventional OSN axons, which may co-mingle with necklace sensory axons in necklace glomeruli (Cockerham et al, 2009; Secundo et al, 2014). Stimulus discrimination could alternatively be achieved through linear or non-linear interactions between intracellular signals downstream of individual MS4A receptors, which could allow the integration or gating of signals arising from distinct odorants and gases detected by single necklace neurons (van Giesen et al, 2016); this process could generate a range of firing rates (depending, for example, on the specific odor components present in a blend) that could then be differentially read-out by the brain.…”
Section: Discussionmentioning
confidence: 99%
“…While most clearly elaborated in the visual system, this picture roughly recurs across almost all sensory domains [2,3]. Olfaction may be a counterexample [4], in the sense that representations of intermediate complexity do not appear to exist [5]. Much theoretical progress has been made in the past several decades in developing methods to mine input/output data to determine variations of cascade models, which identify linear filters that extract relevant stimulus components, and predict the firing rate as a nonlinear function of the filtered stimulus [6].…”
mentioning
confidence: 99%