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“I Never Forget a Face, but in Your Case I’ll Be Glad to Make an
Exception”: Intentional Forgetting of Emotional Faces
Chelsea K. Quinlan and Tracy L. Taylor
Dalhousie University
The current study used the item-method directed forgetting paradigm to determine whether there are
limits on the ability to intentionally forget angry faces. During the study phase, faces were presented, 1
at a time, each followed by an instruction to remember or forget. Following the presentation of all faces,
participants performed a yes-no recognition test. In 2 experiments that varied only the presentation
duration of the face (500 ms vs. 1,000 ms), we observed an overall directed forgetting effect, with greater
recognition of faces studied with remember rather than forget instructions; the magnitude of this effect
did not vary with emotional expression. We interpret these results in light of the proposal that priority
processing of angry faces benefits the speed of forming an enduring long-term memory trace rather than
increasing the strength of that trace.
Keywords: intentional forgetting, directed forgetting, emotion, faces, memory
An angry expression on the face of a conspecific signals a
contest for dominance and threatens the observer with the potential
for social displacement and physical harm. The immediate well-
being and long-term survival of the observer therefore depends on
the ability to quickly orient to and assess the threat situation and to
engage a fight-or-flight response if danger is imminent (see Lang,
1995). This implies that an evolutionary advantage should be
conferred on individuals for whom angry faces are processed
expeditiously (see Öhman, 1986).
There is considerable evidence that angry faces receive priority
processing in human observers. Consider the following as cases in
point. Subsequent to aversive conditioning, angry faces evoke
larger galvanic skin responses and are more resistant to extinction
than happy faces, even when backward masking limits conscious
awareness of the conditioned stimulus (e.g., Morris, Öhman, &
Dolan, 1998). Event-related potentials (ERPs) reveal enhanced
early posterior negativity as well as late positive potentials, con-
sistent with enhanced perceptual processing of angry compared
with neutral and happy faces (Schupp et al., 2004). Behaviourally,
angry face targets in a visual array of neutral faces produce
shallower search functions than vice versa, sometimes interpreted
as evidence that angry faces “pop-out” (Eastwood, Smilek, &
Merickle, 2001;Fox et al., 2000;Hansen & Hansen, 1988; how-
ever, see Becker, Anderson, Mortensen, Neufeld, & Neel, 2011;
Purcell & Stewart, 2010). This relatively shallow search function
for angry faces is accompanied by earlier onset and larger
amplitude of the N2pc, a component of the ERP waveform that
is associated with selective attention (Feldmann-Wüstefeld,
Schmidt-Daffy, & Schubö, 2011). Indeed, compared with neutral
faces, attention is biased toward the location of angry faces in the
early intervals following their onset (Cooper & Langton, 2006; see
also Schmidt, Belopolsky, & Theeuwes, 2012). In addition to
attracting early attention, angry faces also slow its disengagement:
When faces serve as the imperative signal at fixation to direct
saccades to the left or right, these movements are initiated more
slowly when the face displays an angry expression than when it
displays a neutral or happy expression (Belopolsky, Devue, &
Theeuwes, 2011; see also Fox, Russo, & Dutton, 2002).
Threat-related stimuli (e.g., angry facial expressions) may be
simultaneously processed through two cortical visual processing
routes (see Barrett & Bar, 2009). The first route, which involves
the dorsal visual stream and orbitofrontal cortex, provides an initial
threat assessment and may account for the fact that angry faces can
exert control over attentional orienting (e.g., Mogg & Bradley,
1999), responding (e.g., conditioned responses; Mineka & Öhman,
2002), and subsequent decision making even when they are
masked to restrict conscious awareness of their presentation (e.g.,
Almeida, Pajtas, Mahon, Nakayama, & Caramazza, 2013). Con-
sistent with this hypothesis, positron emission tomography shows
an enhanced response in right orbitofrontal cortex that correlates
with the intensity of the angry expression and that is also impli-
cated in animal studies of behavioural extinction and reversal
(Blair, Morris, Frith, Perrett, & Dolan, 1999). The early warning
signal raised by rapid unconscious processing in this stream is
presumed to increase the observer’s arousal and enhance response
readiness. It further marks regions of interest for controlled pro-
cessing through the second route, which involves the ventral visual
stream (e.g., Vuilleumier & Schwartz, 2001).
Chelsea K. Quinlan and Tracy L. Taylor, Department of Psychology and
Neuroscience, Dalhousie University.
We thank Carl Helmick for designing the custom software used to
randomize the items and our undergraduate participants for volunteering
their time to contribute to this research. Funding for this study was
provided by the Natural Sciences Engineering and Research Council of
Canada through a Vanier Scholarship to Chelsea K. Quinlan and a Dis-
covery Grant to Tracy L. Taylor.
Correspondence concerning this article should be addressed to Chelsea
K. Quinlan, Department of Psychology and Neuroscience, Dalhousie Uni-
versity, 1355 Oxford Street, Halifax, Nova Scotia, B3H 4R2 Canada.
E-mail: Chelsea.Quinlan@dal.ca
Canadian Journal of Experimental Psychology / Revue canadienne de psychologie expérimentale © 2014 Canadian Psychological Association
2014, Vol. 68, No. 3, 212–221 1196-1961/14/$12.00 http://dx.doi.org/10.1037/cep0000024
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