7 国際: 2014年10月アーカイブ
Authors: Nakashima, S. F., Morimoto, Y., Takano, Y., Yoshikawa, S. &
Hugenberg, K.
Title: Faces in the dark: interactive effects of darkness and anxiety
on the memory for threatening faces.
Journal(書誌情報）: Frontiers in Psychology, 5, 1091
doi: 10.3389/fpsyg.2014.01091
Abstract: In the current research, we extend past work on the effects
of ambient darkness and threat to the domain of memory for expressive
faces. In one study, we examined the effects of ambient darkness and
individual differences in state anxiety on memory of unfamiliar
expressive faces. Here, participants were seated in either a dark or
light room and encoded a set of unfamiliar faces with angry, happy,
and neutral facial expressions. A subsequent recognition task revealed
an interactive effect of ambient darkness, anxiety, and target
expression. Highly anxious participants in ambient darkness had worse
memory for angry faces than did low-anxiety participants. On the other
hand, the recognition performance for happy faces was affected neither
by the darkness nor state anxiety. The results suggest not only that
ambient darkness has its strongest effect on anxious perceivers, but
also that person × situation effects should be considered in face
recognition research.
著者Contact先の email: nakashima.satoshi[at]lab.ntt.co.jp; shaikh.cogpsy[at]gmail.com
Authors:Ayako Saneyoshi & Chikashi Michimata
Title:Categorical and coordinate processing in object recognition depends
on different spatial frequencies
Journal(書誌情報）:Cognitive Processing, September 2014
doi:10.1007/s10339-014-0635-z
Abstract:Previous studies have suggested that processing categorical
spatial relations requires high spatial frequency (HSF) information, while
coordinate spatial relations require low spatial frequency (LSF)
information. The aim of the present study was to determine whether spatial
frequency influences categorical and coordinate processing in object
recognition. Participants performed two object-matching tasks for novel,
non-nameable objects consisting of "geons" (c.f. Brain Cogn 71:181?186,
2009). For each original stimulus, categorical and coordinate
transformations were applied to create comparison stimuli. These stimuli
were high-pass/low-cut-filtered or low-pass/high-cut-filtered by a filter
with a 2D Gaussian envelope. The categorical task consisted of the original
and categorical-transformed objects. The coordinate task consisted of the
original and coordinate-transformed objects. The non-filtered object image
was presented on a CRT monitor, followed by a comparison object
(non-filtered, high-pass-filtered, and low-pass-filtered stimuli). The
results showed that the removal of HSF information from the object image
produced longer reaction times (RTs) in the categorical task, while removal
of LSF information produced longer RTs in the coordinate task. These
results support spatial frequency processing theory, specifically Kosslyn's
hypothesis and the double filtering frequency model.
著者Contact先の email:a-sane[at]main.teikyo-u.ac.jp
Authors: Kitaoka, A.
Title: Color-dependent motion illusions in stationary images and their phenomenal dimorphism
Journal(書誌情報）: Perception
doi:10.1068/p7706
Abstract:
The color-dependent motion illusion in stationary images?a special type of the Fraser?Wilcox illusion?is introduced and discussed. The direction of illusory motion changes depending on whether the image is of high or low luminance and whether the room is bright or dark. This dimorphism of illusion was confirmed by surveys. It is suggested that two different spatial arrangements of color can produce the motion illusion. One is a spatial arrangement where long- and short-wavelength color regions sandwich a darker strip; the other is where the same color regions sandwich a brighter strip.
著者Contact先の email: akitaoka[at]lt.ritsumei.ac.jp
日本語によるコメント（オプション，200-300字で）
色と輝度と明暗順応に依存して錯視の方向が反転する静止画が動いて見える錯視についての論文です。
