Search results for "Visual Perception"
showing 7 items of 387 documents
Encoding specificity instead of online integration of real-world spatial regularities for objects in working memory
2022
Most objects show high degrees of spatial regularity (e.g. beach umbrellas appear above, not under, beach chairs). The spatial regularities of real-world objects benefit visual working memory (VWM), but the mechanisms behind this spatial regularity effect remain unclear. The "encoding specificity" hypothesis suggests that spatial regularity will enhance the visual encoding process but will not facilitate the integration of information online during VWM maintenance. The "perception-alike" hypothesis suggests that spatial regularity will function in both visual encoding and online integration during VWM maintenance. We investigated whether VWM integrates sequentially presented real-world obje…
The nature of the syllabic neighbourhood effect in French
2006
International audience; We investigated whether and how sublexical units such as phonological syllables mediate access to the lexicon in French visual word recognition. To do so, two lexical decision task (LDT) experiments examined the nature of the syllabic neighbourhood effect. In Experiments 1a and b, the number of higher frequency syllabic neighbours was manipulated while controlling for the first bigram. The results failed to show a pure syllabic neighbourhood effect. In Experiments 2a and b, syllabic neighbourhood and bigram frequency were factorially manipulated. The interaction showed that the syllabic neighbourhood effect was inhibitory when bigram frequency was high, whereas it wa…
Mi descrivi il tuo disegno del Mattoncino Lego? Un’esperienza didattica di matematica nella scuola dell’infanzia
2018
La consapevolezza dell’importanza di guardare, attraverso una lente di tipo matematico, i disegni prodotti dai bambini, considerandoli come strumento diagnostico per quello che D’Amore et al. (2004) chiamano come il “Campo di Esperienza” Spazio, Ordine e Misura, ha dato spunto a questo contributo che discute una sperimentazione didattica condotta in una sezione di scuola dell’infanzia (5 anni). All’interno della stessa è stato chiesto ai bambini di rappresentare dei mattoncini Lego con un disegno, e di descrivere successivamente i propri elaborati rintracciando e argomentando in essi eventuali segni di scarto numerico-spaziali rispetto al mattoncino osservato/manipolato, attraverso visioni …
Standardization of Road Danger Signs in the European Union
2015
The aim of this research is to find a solution for the standardization of road signs in the EU zone by a comparative analysis of different national sign systems to establish a common set from a single country. This work is based on the idea that road sign standardization might increase the safety level of transnational journeys and foster the relationships among the various members of the EU Community. This paper presents the outcome of the first step of the research, which focuses on the harmonization of danger signs. In more detail, a multicriteria approach is applied to rank 19 EU Member States on the basis of three main aspects: the installation cost of new signs, new sign learning issu…
VIZUĀLĀS UZTVERES SEKMĒŠANA VIDĒJA VECUMPOSMA BĒRNIEM TĒLOTĀJDARBĪBĀ PIRMSSKOLĀ
2017
Kvalifikācijas darba autores vārds ir Jolanta Brūzīte. Kvalifikācijas darba nosaukums “Vizuālās uztveres sekmēšana vidēja vecumposma bērniem tēlotājdarbībā pirmsskolā”. Kvalifikācijas darba mērķis ir teorētiski analizēt un praktiski pārbaudīt, kā tēlotājdarbībā (darbs ar krāsām) pirmsskolā sekmējama bērnu vizuālā uztvere. Darbs ietver teorētisko, empīrisko nodaļu un bērnu darbu analīzi. Pētījuma bāze: Rīgas 49. pirmsskola Kvalifikācijas darbs ietver teorētisko daļu, empīrisko daļu un bērnu darbu analīzi. Pirmā nodaļa ietver teoriju par vizuālo uztveri, vidēja vecumposma bērnu attīstību, tēlotājdarbību un pedagoģisko darbību. Otrā nodaļa ietver empīrisko metodoloģiju un bērnu darbu analīzi. …
Mobilo vizuālo ierīču izmantošana redzes uztveres pētījumos
2016
Bakalaura darbā ir pētīta VirtualRealiy iekārta un tās pielietošanas iespējas redzes uztveres uzdevumos. Tika izveidots režģu virziena uztveres adaptācijas uzdevums ahromātiskajiem un krāsainajiem stimuliem, kuru var veikt ar VirtualReality iekārtas un viedtālruņa palīdzību. Adaptācijas uzdevums tika veikts pie dažādiem adaptācijas laikiem un mainīga vienas acs stimula kontrasta. Tāpat tika noteikti un salīdzināti viedtālruņu starojuma spektri, lai novērtētu dažādu displeju pielietojums šādu redzes uztveres uzdevumu izpildei. Literatūras pārskatā ir apkopoti avoti no 1981. līdz 2015. gadam. Bakalaura darbs ir uzrakstīts latviešu valodā, tā apjoms ir 27 lpp. Darbs satur 14 attēlus, 3 tabulas…
(A,B) In vivo GCaMP6f signals recorded in layers M1, M5 and M9/10 of Mi1 (A) and Tm3 (B) neurons, before (blue, green) and after (gray, red) applicat…
2019
Sensory systems sequentially extract increasingly complex features. ON and OFF pathways, for example, encode increases or decreases of a stimulus from a common input. This ON/OFF pathway split is thought to occur at individual synaptic connections through a sign-inverting synapse in one of the pathways. Here, we show that ON selectivity is a multisynaptic process in the Drosophila visual system. A pharmacogenetics approach demonstrates that both glutamatergic inhibition through GluClα and GABAergic inhibition through Rdl mediate ON responses. Although neurons postsynaptic to the glutamatergic ON pathway input L1 lose all responses in GluClα mutants, they are resistant to a cell-type-specifi…