Search results for "memory"
showing 10 items of 2004 documents
不同情绪面孔的视觉工作记忆表现差异 [The Performance Difference of Visual Working Memory between Various Emotional Faces]
2022
Among social-emotional stimuli, emotional faces occupy an important position, which specifically refer to human faces with certain facial expressions. The visual working memory is a limited workspace where information can be saved online and can be accessed and operated by advanced cognitive function during the maintenance period. A large number of behavioral and electrophysiological studies have shown that there are differences in visual working memory performance of different emotional faces. Specifically, angry faces can enhance the visual working memory performance; fearful faces may cause some damage to visual working memory; sad faces will impair face recognition encoding in visual wo…
Electrophysiological evidence supports the role of sustained visuospatial attention in maintaining visual WM contents
2019
Recent empirical and theoretical work suggests that there is a close relationship between visual working memory (WM) and visuospatial attention. Here, we investigated whether visuospatial attention was involved in maintaining object representations in visual WM. To this end, the alpha lateralization and contralateral delay activity (CDA) were analyzed as neural markers for visuospatial attention and visual WM storage, respectively. In the single-task condition, participants performed a grating change-detection task. To probe the role of visuospatial attention in maintaining WM contents, two color squares were presented above and below the fixation point during the retention interval, which …
Vocabulary learning strategies : a study on Finnish first-year high school students’ independent vocabulary learning
2009
Oppimisstrategiat ovat olennainen osa vieraan kielen omaksumista, ja ne ovat jo pitkään olleet laajan tutkimuksen kohteena. Sanaston oppiminen nähdään yhä tärkeämpänä osana kielitaitoa ja koulujen opetusohjelmaa, minkä vuoksi sanaston oppimisstrategiat ovat kasvava tutkimuskohde kielitieteessä. Suuri osa uusien sanojen oppimisesta on kuitenkin oppilaiden omalla ajalla tapahtuvaa itsenäistä työskentelyä, ja tutkimus oppilaiden omista käsityksistä eri strategioiden käytöstä ja tehokkuudesta on ollut vähäisempää. Tämä kandidaatin tutkielma keskittyi selvittämään, millaisia strategioita lukion 1. vuoden opiskelijat käyttävät opiskellessaan sanastoa itsenäisesti, kuinka sitoutuneita he ovat…
Volatility risk premia and financial connectedness
2014
In this paper we use the Diebold Yilmaz (2009 and 2012) methodology to construct an index of connectedness among five European stock markets: France, Germany, UK, Switzerland and the Netherlands, by using volatility risk premia. The volatility risk premium, which is a proxy of risk aversion, is measured by the difference between the implied volatility and expected realized volatility of the stock market for next month. While Diebold and Yilmaz focus is on the forecast error variance decomposition of stock returns or range based volatilities employing a stationary VAR in levels, we account for the (locally) long memory stationary properties of the levels of volatility risk premia series. The…
视觉工作记忆中数量和精度的权衡关系是否受个体自发控制
2021
There is a negative correlation between the quality and quantity of memory representations in visual working memory, and this negative correlation is seen as a trade-off between quantity and quality. However, it is unclear whether this trade-off is entirely stimulus-driven or can be controlled voluntarily by individuals according to task demands, which has led to a debate on the mechanism of memory resource allocation. This paper systematically reviews the development of research on whether the trade-off between quantity and quality is subject to individual voluntary control, and point out this voluntary control is influenced by the exposure duration and working memory capacity, and some su…
Teacher-child interaction quality and children's self-regulation in toddler classrooms in Finland and Portugal
2021
This study examines the association between teacher–child interaction quality and children's self‐regulation in Finnish and Portuguese toddler classrooms. The participants included 230 Finnish (M = 29; SD = 3 months) and 283 Portuguese (M = 30, SD = 4 months) toddlers and their teachers (n = 43 Finland; n = 29 Portugal). The children's behavioural self‐regulation (attention, working memory, and inhibition control) was individually tested, and the teachers evaluated the children's self‐regulation skills in the classroom. The quality of the teacher–child interactions (i.e., emotional and behavioural support and engaged support for learning) was evaluated using the CLASS‐Toddler observation in…
Jelgavas pilsētas bibliotēka Akadēmijas ielā 26: ainavas kultūrvēsturiska lasīšana
2018
Maģistra darba temats ir “Jelgavas pilsētas bibliotēka Akadēmijas ielā 26: ainavas kultūrvēsturiska lasīšana”. Pētījuma galvenā problēma ir nepietiekami apzinātā Jelgavas pilsētas bibliotēkas ēkas vēsture. Pētījuma mērķis ir apkopot un analizēt pieejamo informāciju par bibliotēkas ēku, tās vēsturi un pārmaiņām laiku griežos, izvērtēt, kā šī informācija ir izmantojama bibliotēkas identitātes nostiprināšanā. Teorētisko bāzi veido aksioloģija un Informācijas pasauļu teorija. Datu ieguvei un analīzei izmantota Ainavas kultūrvēsturiskas lasīšanas metode. Pētījuma rezultāti apliecina, ka Jelgavas pilsētas bibliotēkas ēka un tās vēsture ir nozīmīgs un plašs naratīvs, kas, mērķtiecīgi izmantots, va…
Working memory profiles of children with learning disabilities.
2012
Measuring Working Memory for the diagnosis of mathematics learning disabilities: The PML test battery.
2012
Recognizing Video Resolution by Monitoring Memory Metrics in Mobile Clients
2019
Content delivery is one of the most successful applications in mobile networks. Mobile edge servers are significantly contributing to the improvement of this type of applications, by also performing resolution adaptations as a function of the radio link quality observed by the users. In this paper, we face the problem of dynamically tracking the perceived video resolution by mobile clients in a mobile edge environment to guarantee an agreed Service Level Agreement (SLA). To this purpose, we propose a protocol-agnostic approach, based on monitoring some memory metrics of a running video streaming process at the mobile client, for identifying the time-varying resolution of the video content.