What modulate attentional parameters, familiarity or features?

Thomas Alrik Sørensen, Yongming Wang, Xinlu Cai, Raymond C.K. Chan, Jonas Olsen Dall

Publikation: Bidrag til tidsskriftKonferenceabstrakt i tidsskriftForskningpeer review

Resumé

Several studies have investigated object-based capacity limitations of visual short-term memory (VSTM) (e.g. Luck & Vogel, 1997; Alvarez & Cavanagh, 2004). Recently research interest has turned from object-based processing towards the resolution of objects retained in short-term memory (e.g. Wilken & Ma, 2004). Although this research is highly relevant, there may be an inherent difference whether a stimulus can be easily classified in a discrete category, or if it belongs on a spectrum of a continuous category.Previous studies have shown that object based capacity of VSTM is not only limited by object complexity as argued by Alvarez & Cavanagh (2004), but also relates to familiarity and expertise (Sørensen & Kyllingsbæk, 2012; Dall, Watanabe, & Sørensen, 2016). Here we investigated the influence of two vectors of complexity, namely the number of features that the constitute an object versus the degree of familiarity with said object.We presented Chinese observers with a whole report design (see Sperling, 1960), consisting of four stimulus conditions. Chinese characters varied along two aspects: the word frequency and the number of strokes used in the character. Data were analysed using the Theory of Visual Attention (Bundesen, 1990) enabling us to isolate specific components of attention; VSTM capacity (K), as well as parameters like processing speed (C), and the threshold for visual perception (t0) (e.g. Ásgeirsson, Nordfang & Sørensen, 2015).The threshold of visual perception was not affected by the manipulation of stroke count, nor by character frequency. In turn we found a consistent pattern in both processing speed and capacity of VSTM revealing that observer performance was driven mainly by familiarity, and not stroke count, demonstrating that object complexity is dependent on the robustness of an observer’s mental categories, rather than on the number of features in the object per se.
OriginalsprogEngelsk
TidsskriftJournal of Vision
Vol/bind17
Udgave nummer10
ISSN1534-7362
StatusUdgivet - 4 sep. 2017
BegivenhedVision Sciences Society Annual Meeting - TradeWinds Island Resorts, St. Pete Beach, Florida, USA
Varighed: 19 maj 201724 maj 2017
Konferencens nummer: 16
http://www.visionsciences.org/
http://www.visionsciences.org/

Konference

KonferenceVision Sciences Society Annual Meeting
Nummer16
LokationTradeWinds Island Resorts
LandUSA
BySt. Pete Beach, Florida
Periode19/05/201724/05/2017
Internetadresse

Fingerprint

Short-Term Memory
Visual Perception
Stroke
Research
Recognition (Psychology)

Citer dette

Sørensen, T. A., Wang, Y., Cai, X., Chan, R. C. K., & Dall, J. O. (2017). What modulate attentional parameters, familiarity or features? Journal of Vision, 17(10).
Sørensen, Thomas Alrik ; Wang, Yongming ; Cai, Xinlu ; Chan, Raymond C.K. ; Dall, Jonas Olsen. / What modulate attentional parameters, familiarity or features?. I: Journal of Vision. 2017 ; Bind 17, Nr. 10.
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title = "What modulate attentional parameters, familiarity or features?",
abstract = "Several studies have investigated object-based capacity limitations of visual short-term memory (VSTM) (e.g. Luck & Vogel, 1997; Alvarez & Cavanagh, 2004). Recently research interest has turned from object-based processing towards the resolution of objects retained in short-term memory (e.g. Wilken & Ma, 2004). Although this research is highly relevant, there may be an inherent difference whether a stimulus can be easily classified in a discrete category, or if it belongs on a spectrum of a continuous category.Previous studies have shown that object based capacity of VSTM is not only limited by object complexity as argued by Alvarez & Cavanagh (2004), but also relates to familiarity and expertise (S{\o}rensen & Kyllingsb{\ae}k, 2012; Dall, Watanabe, & S{\o}rensen, 2016). Here we investigated the influence of two vectors of complexity, namely the number of features that the constitute an object versus the degree of familiarity with said object.We presented Chinese observers with a whole report design (see Sperling, 1960), consisting of four stimulus conditions. Chinese characters varied along two aspects: the word frequency and the number of strokes used in the character. Data were analysed using the Theory of Visual Attention (Bundesen, 1990) enabling us to isolate specific components of attention; VSTM capacity (K), as well as parameters like processing speed (C), and the threshold for visual perception (t0) (e.g. Ásgeirsson, Nordfang & S{\o}rensen, 2015).The threshold of visual perception was not affected by the manipulation of stroke count, nor by character frequency. In turn we found a consistent pattern in both processing speed and capacity of VSTM revealing that observer performance was driven mainly by familiarity, and not stroke count, demonstrating that object complexity is dependent on the robustness of an observer’s mental categories, rather than on the number of features in the object per se.",
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Sørensen, TA, Wang, Y, Cai, X, Chan, RCK & Dall, JO 2017, 'What modulate attentional parameters, familiarity or features?', Journal of Vision, bind 17, nr. 10.

What modulate attentional parameters, familiarity or features? / Sørensen, Thomas Alrik; Wang, Yongming; Cai, Xinlu; Chan, Raymond C.K.; Dall, Jonas Olsen.

I: Journal of Vision, Bind 17, Nr. 10, 04.09.2017.

Publikation: Bidrag til tidsskriftKonferenceabstrakt i tidsskriftForskningpeer review

TY - ABST

T1 - What modulate attentional parameters, familiarity or features?

AU - Sørensen, Thomas Alrik

AU - Wang, Yongming

AU - Cai, Xinlu

AU - Chan, Raymond C.K.

AU - Dall, Jonas Olsen

PY - 2017/9/4

Y1 - 2017/9/4

N2 - Several studies have investigated object-based capacity limitations of visual short-term memory (VSTM) (e.g. Luck & Vogel, 1997; Alvarez & Cavanagh, 2004). Recently research interest has turned from object-based processing towards the resolution of objects retained in short-term memory (e.g. Wilken & Ma, 2004). Although this research is highly relevant, there may be an inherent difference whether a stimulus can be easily classified in a discrete category, or if it belongs on a spectrum of a continuous category.Previous studies have shown that object based capacity of VSTM is not only limited by object complexity as argued by Alvarez & Cavanagh (2004), but also relates to familiarity and expertise (Sørensen & Kyllingsbæk, 2012; Dall, Watanabe, & Sørensen, 2016). Here we investigated the influence of two vectors of complexity, namely the number of features that the constitute an object versus the degree of familiarity with said object.We presented Chinese observers with a whole report design (see Sperling, 1960), consisting of four stimulus conditions. Chinese characters varied along two aspects: the word frequency and the number of strokes used in the character. Data were analysed using the Theory of Visual Attention (Bundesen, 1990) enabling us to isolate specific components of attention; VSTM capacity (K), as well as parameters like processing speed (C), and the threshold for visual perception (t0) (e.g. Ásgeirsson, Nordfang & Sørensen, 2015).The threshold of visual perception was not affected by the manipulation of stroke count, nor by character frequency. In turn we found a consistent pattern in both processing speed and capacity of VSTM revealing that observer performance was driven mainly by familiarity, and not stroke count, demonstrating that object complexity is dependent on the robustness of an observer’s mental categories, rather than on the number of features in the object per se.

AB - Several studies have investigated object-based capacity limitations of visual short-term memory (VSTM) (e.g. Luck & Vogel, 1997; Alvarez & Cavanagh, 2004). Recently research interest has turned from object-based processing towards the resolution of objects retained in short-term memory (e.g. Wilken & Ma, 2004). Although this research is highly relevant, there may be an inherent difference whether a stimulus can be easily classified in a discrete category, or if it belongs on a spectrum of a continuous category.Previous studies have shown that object based capacity of VSTM is not only limited by object complexity as argued by Alvarez & Cavanagh (2004), but also relates to familiarity and expertise (Sørensen & Kyllingsbæk, 2012; Dall, Watanabe, & Sørensen, 2016). Here we investigated the influence of two vectors of complexity, namely the number of features that the constitute an object versus the degree of familiarity with said object.We presented Chinese observers with a whole report design (see Sperling, 1960), consisting of four stimulus conditions. Chinese characters varied along two aspects: the word frequency and the number of strokes used in the character. Data were analysed using the Theory of Visual Attention (Bundesen, 1990) enabling us to isolate specific components of attention; VSTM capacity (K), as well as parameters like processing speed (C), and the threshold for visual perception (t0) (e.g. Ásgeirsson, Nordfang & Sørensen, 2015).The threshold of visual perception was not affected by the manipulation of stroke count, nor by character frequency. In turn we found a consistent pattern in both processing speed and capacity of VSTM revealing that observer performance was driven mainly by familiarity, and not stroke count, demonstrating that object complexity is dependent on the robustness of an observer’s mental categories, rather than on the number of features in the object per se.

M3 - Conference abstract in journal

VL - 17

JO - Journal of Vision

JF - Journal of Vision

SN - 1534-7362

IS - 10

ER -