Spontaneous trait inferences are bound to actors' faces: evidence from a false recognition paradigm

A false recognition paradigm showed that spontaneous trait inferences (STIs) are bound to the person performing a trait-implying behavior. In 6 experiments, participants memorized faces and behavioral sentences. When faces were paired with implied traits in a recognition test, participants falsely recognized these traits more often than unrelated traits paired with the same faces or the same traits paired with familiar faces. The effect was obtained for a large set of behaviors (120). each presented for 5 s, and for behaviors that participants did not subsequently recognize or recall. Antonyms of the implied traits were falsely recognized less often than unrelated traits, suggesting that STIs have extended implications. Explicit person-trait judgments predicted both false recognition and response times for implied traits.     

The efficiency of binding spontaneous trait inferences to actors’ faces

Three experiments tested the hypothesis that the process of binding spontaneous trait inferences (STIs) to actors’ representations is relatively independent of attentional resources. Participants were presented with faces paired with single behaviors. Binding of STIs to actors was revealed by a higher false recognition of implied traits paired with actors’ faces than of implied traits randomly paired with other familiar faces. This effect replicated when each face-behavior pair was presented for 2 s (Experiment 1), when the processing of the information was shallow (Experiment 2), and when participants performed a secondary task during the presentation of behaviors (Experiment 3). Experiment 4 showed that explicit on-line trait judgments of the actor, but not explicit behavior judgments, predicted the false recognition of implied traits in the context of the actor. The possibility that the process of binding STIs to actors’ representations is automatic is discussed.     

Internal reinstatement hides cuing effects in source memory tasks

Reinstating source details at test often has no impact on source memory. We tested the proposition that participants internally reinstate source cues when such cues are not provided by the experimenter, thus making the external cues redundant. Participants studied words paired with either a male or a female face and were later asked to specify the gender of the face studied with each word. To disrupt the ability to internally reinstate sources, some participants saw eight male faces and eight female faces throughout the study list (multiple-face condition), making it difficult to determine which face should be internally reinstated for uncued test trials. Other participants saw only a single face for each gender (single-face condition), which should facilitate internal reinstatement. Across three experiments, participants in the multiple-face condition showed improved source discrimination when the studied faces were reinstated at test, as compared to uncued trials. In contrast, participants in the single-face condition showed no effect of the face cues. Moreover, the cuing effect for the multiple-face condition disappeared when the test structure facilitated internal reinstatement. Overall, the experiments support the contention that internal reinstatement is a natural part of source retrieval that can mask the effects of external cues.     

Believing is seeing: the effects of racial labels and implicit beliefs on face perception

Two studies tested whether racial category labels and lay beliefs about human traits have a combined effect on people's perception of, and memory for, racially ambiguous faces. Participants saw a morphed target face accompanied by a racial label (Black or White). Later, they were asked to identify the face from a set of two new morphed faces, one more Black and the other more White than the target. As predicted, entity theorists, who believe traits are immutable, perceived and remembered the target face as consistent with the racial label, whereas incremental theorists, who believe traits are malleable, perceived and remembered the face as inconsistent with the racial label. In Study 2, participants also drew the target face more consistently (entity theorists) or less consistently (incremental theorists) with the racial label. Results of both studies confirm that social variables can affect how physical features are seen and remembered.     

Judgement of lateral orientation for previously seen and unseen photographs of faces

In Study 1, 56 undergraduates judged whether each member of two sets of unseen photographs of faces was shown in the original or reversed orientation. Performance was at chance level, indicating that they could not perform this task. In Studies 2 and 3, the first of which involved unanalyzed data from previously-published work, an investigation was made of identification of orientation for faces which had been laterally reversed in the course of experiments on recognition memory. For a total of 406 subjects, over-all identification accuracy was about 60%, which was above chance. However, subjects were correct more often on normal (unchanged) than on reversed (changed) faces and were generally more likely to identify a face as normal when they were certain than when they were uncertain in their initial recognition judgement. It was concluded that identification performance could largely be accounted for by a response strategy model in which subjects judged orientation on the basis of their subjective familiarity with the face. Together, these studies demonstrate that subjects could not usually detect the lateral orientation of previously-seen or of unseen photographs of faces.     

Prototypic Moral Character

Four studies tested whether moral character is organized as a cognitive prototype. Study 1 involved a free listing of features of virtuous persons. Study 2 required participants to rate each trait on its centrality to good character. Astandard recognition memory paradigm was used in Studies 3 and 4 to test whether participants reported more false recognition of trait attributes that they have not seen but are consistent (virtue central) with the prototype. In both studies, participants reported significant false recognition of novel virtue-central traits than they did virtue-peripheral traits, supporting the claim that a conception of good character is schematically organized around a prototype. Prototype activation had weak and inconsistent effects on recall memory. Implications for understanding moral cognition and identity are discussed.     

Covert detection of attractiveness among the neurologically intact: evidence from skin-conductance responses

Several studies have shown that participants, without a deficit in face recognition, give an increased skin conductance response (SCR) to familiar faces when presented subliminally, hence suggesting covert recognition of these faces. In the experiment presented here we manipulated familiarity and attractiveness and tested whether participants distinguished between faces for these variables when presented too fast to allow conscious recognition. Three sets of faces were presented: famous attractive; unfamiliar attractive; and unfamiliar less attractive. SCRs were the same for each category of faces whether presented subliminally or supraliminally, and were the same for attractive faces, whether famous or unfamiliar; however, SCRs differed between the attractive and less attractive faces. The findings support those of Stone et al (2001 Cognitive, Affective and Behavioral Neuroscience 1 183-191) and suggest that higher SCRs to famous faces are not necessarily due to covert recognition, but may be a response to the positive affective valence of the stimuli.     

Evidence for holistic processing of faces viewed as photographic negatives

Inversion and photographic negation both impair face recognition. Inversion seems to disrupt processing of the spatial relationship between facial features ('relational' processing) which normally occurs with upright faces and which facilitates their recognition. It remains unclear why negation affects recognition. To find out if negation impairs relational processing, we investigated whether negative faces are subject to the 'chimeric-face effect'. Recognition of the top half of a composite face (constructed from top and bottom halves of different faces) is difficult when the face is upright, but not when it is inverted. To perform this task successfully, the bottom half of the face has to be disregarded, but the relational processing which normally occurs with upright faces makes this difficult. Inversion reduces relational processing and thus facilitates performance on this particular task. In our experiments, subjects saw pairs of chimeric faces and had to decide whether or not the top halves were identical. On half the trials the two chimeras had identical tops; on the remaining trials the top halves were different. (The bottom halves were always different.) All permutations of orientation (upright or inverted) and luminance (normal or negative) were used. In experiment 1, each pair of 'identical' top halves were the same in all respects. Experiment 2 used differently oriented views of the same person, to preclude matches being based on incidental features of the images rather than the faces displayed within them. In both experiments, similar chimeric-face effects were obtained with both positive and negative faces, implying that negative faces evoke some form of relational processing. It is argued that there may be more than one kind of relational processing involved in face recognition: the 'chimeric-face effect' may reflect an initial 'holistic' processing which binds facial features into a 'Gestalt', rather than being a demonstration of the configurational processing involved in individual recognition.     

Directed forgetting of faces: the role of response criterion

In two experiments, we examined recognition for faces following item method directed forgetting. During testing, participants reported whether the face was a new face or, if they thought it was a studied face, they identified the instruction paired with the face during study. In both experiments, the proportion of new faces falsely recognized and classified as forget faces exceeded those falsely recognized and classified as remember faces. Despite the use of different response criteria during testing, participants showed greater discrimination accuracy when identifying remember faces than when identifying forget faces. Taken together, these data patterns indicate that participants employed a strength-based criterion when responding. Specifically, participants responding to new faces were more likely to classify those faces as forget faces from study rather than as remember faces from study.     

The role of dynamic information in the recognition of unfamiliar faces

The effects of movement on unfamiliar face recognition were investigated. In an incidental learning task, faces were studied either as computer-animated (moving) displays or as a series of static images, with identical numbers of frames shown for each. The movements were either nonrigid transformations (changes in expression) or rigid rotations in depth (nodding or shaking). At test, participants saw either single, static images or moving sequences. Only one experiment showed a significant effect of study type, in favor of static instances. There was no additional advantage from studying faces in motion in these experiments, in which both study types showed the same amounts of information. Recognition memory was relatively unaffected by changes in expression between study and test. Effects of viewpoint change were large when expressive transformations had been studied but much smaller when rigid rotations in depth had been studied. The series of experiments did reveal a slight advantage for testing memory with moving compared with static faces, consistent with recent findings using familiar faces. Future work will need to examine whether such effects may also be due to the additional information provided by an animated sequence.     

Self-construal priming modulates neural substrates of self-awareness

We used functional magnetic resonance imaging to assess whether self-construal priming can change adults' self-awareness induced during face perception. After reading essays containing independent or interdependent pronouns (e.g., I or we), participants were scanned while judging the head orientation of images showing their own and familiar faces. Neural activity in the right middle frontal cortex was greater when participants viewed their own rather than familiar faces, and this difference was larger after independent than after interdependent self-construal priming. The increased right frontal activity for participants' own faces relative to familiar faces was associated with faster responses. Our findings suggest that the neural correlates of self-awareness associated with recognition of one's own face can be modulated by self-construal priming in human adults.     

Individual differences in (non-visual) processing style predict the face inversion effect

Recent research suggests that individuals with relatively weak global precedence (i.e., a smaller propensity to view visual stimuli in a configural manner) show a reduced face inversion effect (FIE). Coupled with such findings, a number of recent studies have demonstrated links between an advantage for feature-based processing and the presentation of traits associated with autism among the general population. The present study sought to bridge these findings by investigating whether a relationship exists between the possession of autism-associated traits (i.e., as indicated by individuals'"autism quotient" [(AQ) and the size of the FIE. Participants completed an on-line study in which the AQ was measured prior to a standard face recognition task where half of the faces were inverted at test. The results confirmed that higher AQ levels were predictive of smaller FIEs. Implications for a common underlying factor relating to processing orientation are discussed.     

自我与他人视角的动态信息加工：一项行为振荡研究

为了实现流畅的社会互动,个体需要同时加工自我与他人视角下的信息,并能有效地区分二者。然而个体对自我与他人视角下的信息存在共享神经表征,那么大脑是如何在同时完成自我与他人视角信息加工的前提下又不至于混淆二者的呢？本文通过创新性的、具有高时间分辨率的内隐视觉观点采择任务,发现对于自我视角和他人视角下的信息加工存在频率约为1 Hz的行为振荡现象,并且二者存在180°左右的相位差。这一结果说明在有他人在场的社会情景中,自我视角与他人视角下的信息加工是一种具有周期性的交替优势的过程。     

知觉场理论对面孔知觉年龄偏差效应的解释

使用融合面孔范式和倒置面孔范式来研究面孔知觉的年龄偏差效应,检验知觉场能否作为面孔整体加工的指标,并以此发展年龄偏差的整体加工解释。结果发现：（1）成人和儿童在加工正立面孔时的知觉场均大于加工倒置面孔时的知觉场;（2）在加工正立面孔时,成人加工本年龄面孔比加工他年龄面孔的知觉场更大。上述结果表明：（1）知觉场大小可以作为面孔整体加工的指标,且受面孔朝向的影响;（2）知觉场假设可以解释面孔的年龄偏差效应。     

知觉场理论对面孔知觉年龄偏差效应的解释

使用融合面孔范式和倒置面孔范式来研究面孔知觉的年龄偏差效应,检验知觉场能否作为面孔整体加工的指标,并以此发展年龄偏差的整体加工解释。结果发现：（1）成人和儿童在加工正立面孔时的知觉场均大于加工倒置面孔时的知觉场;（2）在加工正立面孔时,成人加工本年龄面孔比加工他年龄面孔的知觉场更大。上述结果表明：（1）知觉场大小可以作为面孔整体加工的指标,且受面孔朝向的影响;（2）知觉场假设可以解释面孔的年龄偏差效应。     

Correlations between psychometric schizotypy,scan path length,fixations on the eyes and face recognition

Psychometric schizotypy in the general population correlates negatively with face recognition accuracy, potentially due to deficits in inhibition, social withdrawal, or eye-movement abnormalities. We report an eye-tracking face recognition study in which participants were required to match one of two faces (target and distractor) to a cue face presented immediately before. All faces could be presented with or without paraphernalia (e.g., hats, glasses, facial hair). Results showed that paraphernalia distracted participants, and that the most distracting condition was when the cue and the distractor face had paraphernalia but the target face did not, while there was no correlation between distractibility and participants’ scores on the Schizotypal Personality Questionnaire (SPQ). Schizotypy was negatively correlated with proportion of time fixating on the eyes and positively correlated with not fixating on a feature. It was negatively correlated with scan path length and this variable correlated with face recognition accuracy. These results are interpreted as schizotypal traits being associated with a restricted scan path leading to face recognition deficits.     

Memory of children's faces by adults: Appearance does matter

Accurately detecting faces of children when their appearance has been altered is especially important in recognizing abducted or missing child. Face recognition studies have focussed on recognizing the adult perpetrator; however, there is lack of research on recognizing a child's face under different appearances. Two studies were conducted to determine what type of photos may increase recognition of missing children. In Experiment 1 participants were shown pictures of children's faces in a study phase in which their faces were either dirtied with negative affect or clean with positive affect, followed by a recognition phase. Accuracy and confidence were higher when the face at recognition was the same type as in the study phase. Experiment 2 replicated Experiment 1, adding four delay conditions: 10‐minute interval (10‐MI), 3, 6 or 12 week. Accuracy and confidence decreased over time and we again found a significant interaction between face at study and face at recognition. Copyright © 2008 John Wiley & Sons, Ltd.     

Demonstrating the acquired familiarity of faces by using a gender-decision task

We report an experiment in which participants made gender judgments (male or female) to faces. There were three groups of faces: unfamiliar, familiar (celebrities), and a set which had been learned earlier by the participants during the experimental session. The principal purpose of this study was to establish an indirect measure of assessing whether faces have become familiar through learning that does not require overt recognition. Bruce and Young's (1986 British Journal of Psychology 77 305-327) model of face recognition suggests face-processing tasks are independent of one another and so familiarity should have no impact on the time taken to perform gender decisions. However, recent studies have suggested that some face processes are not completely independent. A gender judgment is a simple task which would be useful in face-learning experiments. We examined whether exposure to previously novel faces facilitates a later gender decision to those faces. During a learning stage, participants viewed a set of unfamiliar faces. At test, participants were able to assign gender faster to previously familiar (famous) faces and learned faces than they were to unfamiliar faces. Therefore familiarity can influence the speed at which gender is analysed. We explain our findings with reference to the Burton et al (1990 British Journal of Psychology 81 361-380) interactive activation and competition (IAC) model of face recognition and discuss how the gender judgment might be employed as a means of tracking the acquisition of familiarity in face-learning studies.     

Processing orientation and emotion recognition

There is evidence that some emotional expressions are characterized by diagnostic cues from individual face features. For example, an upturned mouth is indicative of happiness, whereas a furrowed brow is associated with anger. The current investigation explored whether motivating people to perceive stimuli in a local (i.e., feature-based) rather than global (i.e., holistic) processing orientation was advantageous for recognizing emotional facial expressions. Participants classified emotional faces while primed with local and global processing orientations, via a Navon letter task. Contrary to previous findings for identity recognition, the current findings are indicative of a modest advantage for face emotion recognition under conditions of local processing orientation. When primed with a local processing orientation, participants performed both significantly faster and more accurately on an emotion recognition task than when they were primed with a global processing orientation. The impacts of this finding for theories of emotion recognition and face processing are considered.