Searching for threat

In a series of experiments, a visual search task was used to test the idea that biologically relevant threatening stimuli might be recognized very quickly or capture visuo-spatial attention. In Experiment 1, there was evidence for both faster detection and faster search rates for threatening animals than for plants. However, examination of the basis of this effect in Experiment 2 showed that it was not due to threat per se, as detection and search rate advantages were found for pleasant rather than threatening animals compared to plants. In Experiment 3, participants searched for the plants and pleasant and threatening animals used in Experiments 1 and 2, among a fixed heterogeneous selection of non-target items. There was no search rate or detection advantage for threatening animals compared to pleasant animals or plants. The same targets and non-targets as those used in Experiment 3 were also used in Experiment 4. In Experiment 4, participants searched for targets that were presented either close to or distant from an initial fixation point. There was no evidence for a "threat" detection advantage either close to or distant from the cross. Finally, an experiment was conducted in which target categories (fruit, flowers, and animals) were not pre-specified prior to each trial block. There were no differences in reaction times to detect pleasant animals, threatening animals, or fruit. We conclude that the visual search paradigm does not readily reveal any biases that might exist for threatening stimuli in the general population.     

Searching for Memory Systems

The aim of the present study was to investigate the relationship between the affordance effect (i.e., the advantage for responses corresponding spatially with the location of an object's graspable part) and the Simon effect (i.e., the advantage for responses corresponding spatially with stimulus location) and to assess whether they both occur at the response selection stage. In two experiments participants were required to respond according to the vertical orientation (upward or inverted) of photographs of graspable objects, located to the left or right of fixation, with their handles oriented to the right or left. In Experiment 1 the response was a buttonpress; in Experiment 2 was a reaching movement. Our results showed that both Simon and affordance effects emerged in response times but not in movement times. In Experiment 1, the two effects did not interact, whereas a clear interaction emerged in Experiment 2. These results seem to suggest that the interaction between Simon and affordance effects may depend on the type of required action.     

Searching for the High-I

This paper questions the nature and existence of the ego and I from a Western and Eastern viewpoint, which has been a question for 2,500 years when the Buddha rejected the Brahman idea of ātman. The answer for an ego depends partly on the state of consciousness; the existence of the Western objectifying ego is undeniable in ordinary consciousness, but not in extraordinary consciousness with no objectifying. The subtle question remains about the existence of an I that is distinct from the ego and that is best represented by most meditative or contemplative states. Here a subjectified, witnessing, consciousness-maintaining I still seems to exist. This may be called the “High-I,” which appears to provide for all states of consciousness a constancy and awareness not provided by the ego. This finding has implications for psychology and religion as well as philosophy.     

数量化维度的特征搜索

本文从特征整合理论的视觉搜索的研究出发,总结了数量化维度特征搜索的早期研究及进展,提出目前在数量化维度特征搜索研究中需要解决的问题。     

Searching through synaesthetic colors

Synaesthesia can be characterized by illusory colors being elicited automatically when one reads an alphanumeric symbol. These colors can affect attention; synaesthetes can show advantages in visual search of achromatic symbols that normally cause slow searches. However, some studies have failed to find these advantages, challenging the conclusion that synaesthetic colors influence attention in a manner similar to the influence of perceptual colors. In the present study, we investigated 2 synaesthetes who reported colors localized in space over alphanumeric symbols’ shapes. The Euclidian distance in CIE xyY color space between two synaesthetic colors was computed for each specific visual search, so that the relationship between color distance (CD) and efficiency of search could be explored with simple regression analyses. Target-to-distractors color salience systematically predicted the speed of search, but the CD between a target or distractors and the physically presented achromatic color did not. When the synaesthetic colors of a target and distractors were nearly complementary, searches resembled popout performance with real colors. Control participants who performed searches for the same symbols (which were colored according to the synaesthetic colors) showed search functions very similar to those shown by the synaesthetes for the physically achromatic symbols.     

Searching for the Hairy Man

This paper reports on the use of a small group to assist men in a search for maleness within themselves independent of the social expectations of male gender roles. The group was composed of male, helping professionals who saw themselves as responsive to feminism, believed they had begun to own and integrate their feminine aspects, but felt that something was still missing. Issues central to this search are presented.     

Searching for conjunctively defined targets

It has recently been proposed that in searching for a target defined as a conjunction of two or more separable features, attention must be paid serially to each stimulus in a display. Support for this comes from studies in which subjects searched for a target that shared a single feature with each of two different kinds of distractor items (e.g., a red O in a field of black Os and red Ns). Reaction time increased linearly with display size. We argue that this design may obscure evidence of selectivity in search. In an experiment in which the numbers of the two distractors were unconfounded, we find evidence that subjects can search through specified subsets of stimuli. For example, subjects told to search through just the Os to find the red O target do so without searching through Ns. Implications of selective search are discussed.     

Evidence Searching for Evidence-based Psychology Practice

There is an increased awareness of evidence-based methodology among psychologists, but little exists in the literature about how to access the research. Moreover, the prohibitive cost of this information combined with limited time are barriers to the identification of evidence to answer clinical questions. This article presents an example of a question worked though in an evidence-based way. Methods are highlighted, including distinguishing background and foreground questions, breaking down questions into searchable statements, and adapting statements to suit both the question being asked and the resource being searched. A number of free, evidence-based resources are listed. Knowing how and where to access this information will enable practitioners to more easily use an evidence-based approach to their practice.     

Searching short-term memory for linear-positioning movements

To determine whether memory search for movements was serial or parallel, the search processes involved in a short-term motor-memory paradigm were investigated. A linear-positioning task was used to present a series of 1, 2, or 3 movements in a memory set. Upon completion of a memory set, subjects were presented with a search movement. The search movement was either the same length as one of the memory-set movements ("yes" response) or a different length ("no" response). Four subjects completed three consecutive days of testing. On Day 1 RT and movement length were practiced. On Day 2 the subjects were required to search a memory set of movements and respond in the yes condition by lifting the index finger of the left hand. This movement terminated a RT search clock. The same procedures were followed on Day 3, except that a no response was indicated by lifting the index finger. A 2 X 3 X 3 (response X memory set X RT trials) within-subjects analysis yielded nonsignificant main effects and interactions. The results were discussed in relation to verbal memory.     

用仪器找寻上帝

心理学和神经学研究人员通过对颞叶癫痫症病人的研究,发现大脑负责“自我感觉”、情感反应和自我记忆的颞叶区某些部位对宗教体验的产生有明显的影响。根据这一发现,设计出一台仪器,激发一种特定的磁场,诱发健康人脑部颞叶产生类似于癫痫发作的症状,被试者会体验到身体漂浮、变形,并出现宗教内容的幻觉。通过科技手段,上帝现身都可以模仿了,信徒们声称的亲眼见过上帝等宗教体验还可信吗？     

Searching for projection in the Rorschach

The issue of assumptions concerning projection and the Rorschach is discussed in relation to the Rorschach response process and the process of projection. Some data suggest that some minus answers may evolve because of projection, but the limited nature of the findings indicate that these types of projected answers will be difficult to identify in most cases. Findings concerning passive and aggressive movement responses, morbid content responses, and movement answers, coded using a new special score for positive cooperative interaction (COP) in human and animal movement responses, suggest that most projections will manifest in responses that depart from and/or embellish the stimulus field. Caution is recommended about attempting to interpret single answers tht appear to be projections, because most any might be the product of simple stimulus classification.     

Searching for correlates of spatial ability

A brief questionnaire about sense of direction and mechanical experience correlated with Mental Rotation scores. Several new, experimental measures thought to be related to spatial ability did not in fact correlate with Mental Rotation scores.