What do associations and dissociations between face and object recognition abilities tell us about the domain-generality of face processing?
What do associations and dissociations between face and object recognition abilities tell us about the domain-generality of face processing?
复制标题
人脸和物体识别能力之间的关联和分离告诉我们关于人脸处理的领域通用性的什么信息?
DOI:
10.1080/02643294.2017.1414691
复制
发表时间:
2018
影响因子:
3.4
通讯作者:
Eimer M
中科院分区:
文献类型:
--
作者:
Eimer M
Individuals with congenital or developmental prosopagnosia (CP/DP) find it hard to recognize faces. How face-specific is this deficit? The extensive review of research on CP by Geskin and Behrmann (G&B) addressed this question, and produced three main insights. A large proportion of individuals with CP also show (sometimes mild) object recognition impairments. The severity of face and object recognition deficits appears to be correlated across individuals. But about one third of all CPs do not show any evidence of impaired object recognition. Given this complex pattern of associations and dissociations between face and object processing in CP, G&B are appropriately cautious in drawing any firm conclusions about the modularity or domain-generality of the underlying systems. However, their observation that associations between face and object recognition problems appear to be more common than dissociations leads them to suggest that a shared domain-general recognition system may be involved in most cases. Demonstrating the existence of such associations is important, and the factors that produce them need to be carefully investigated. In this commentary, I will discuss reasons why associations and correlations between individual face and object recognition impairments do not necessarily imply that the underlying systems are domain-general. The data reviewed by G&B come from behavioural tests of face and object recognition, and inferences drawn from such tests can always be challenged on methodological grounds. One problem is that there is as yet no general agreement as to which tests are best suited to assess face recognition impairments in individuals with CP. Efforts are currently under way to develop a standardized set of diagnostic criteria for CP which can be applied consistently in future investigations (eg, Barton & Corrow, 2016). To demonstrate links or dissociations between face and object recognition deficits in CP, it is equally important to agree on an analogous set of test procedures for the assessment of object recognition abilities. Here, we face the obvious difficulty of equating face and object recognition tests with respect to general factors that are unrelated to the core mechanisms of face and object recognition. As noted by G&B, such tests may differ in their demands on low-level visual mechanisms, memory, and decision-related processes, although these problems could be overcome by developing new face and object recognition tests that equate these demands as closely as possible. On such example is the Cambridge Car Memory Test (CCMT; Dennett et al., 2012) which was designed to match the format of the widely used Cambridge Face Memory Test (CFMT). But there are other factors such as the effects of expertise on visual processing or the ability of particular object categories to engage attention that are harder if not impossible to match fully. When interpreting associations or dissociations between face and object recognition deficits revealed by behavioural tests, it is always prudent to consider the possibility of systematic biases introduced by these measurement tools. To minimize the risk of such biases, we not only need more data from carefully designed and matched behavioural tests, but also different measures of intact and impaired face and object processing. For example, eye tracking studies can be useful to assess how CPs visually explore faces and objects, and can identify atypical gaze patterns that may or may not be specific to faces (eg, Schwarzer
DOI:
10.1007/s00426-006-0068-0
发表时间:
2007
期刊:
Psychological Research
影响因子:
--
作者:
G. Schwarzer;S. Huber;M. Grüter;T. Grüter;Cornelia Gross;Melanie Hipfel;I. Kennerknecht
通讯作者:
I. Kennerknecht
影响因子:
14.5
作者:
Eimer, Martin;Gosling, Angela;Duchaine, Bradley
通讯作者:
Duchaine, Bradley