Role of response imagery on stimulus recognition*

This experiment investigated the role of response imagery on recognition of stimulus terms following associative training. Ss learned to associate 12 high-imagery or low-imagery responses with trigram stimuli by the study-associative matching procedure. Half the pairs were consistently paired and half were re-paired anew on each trial. Following associative training, Ss were given a stimulus recognition and an associative matching task The results indicated that the probability of stimulus recognition, given correct associative matching, was greater when the responses were high-imagery rather than low-imagery. In contrast, no rehable response imagery effects were found for the probability of stimulus recognition, given incorrect associative matching. It was argued that the locus of the response imagery effect was primarily during retrieval rather than during encoding.     

The role of imagery in the evaluation of sentences

Reaction time was the dependent variable in this sentence verification experiment. Simple sentences, which were either true or false, were constructed such that in some cases it was easy to form an image of the sentence, and in other cases forming an image was difficult. Ss' ratings were employed to select low- and high-imagery sentences. It was found that high-imagery sentences could be verified more rapidly than low-imagery sentences. Instructions which did not mention imagery were given to some Ss while others were specifically asked to employ imagery, but the reaction times of these two groups of Ss did not differ. It was concluded that imagery facilitates the process of sentence verification and that models of this process which restrict themselves to purely semantic operations are incomplete.     

The role of perceptual and semantic elaboration in high- and low-imagery sentence recall

Sentence imagery effects in recall are predicted by both perceptual and semantic elaboration models. The former attributes superior recall of high-imagery sentences to the addition of perceptual network components to an existing semantic network; the latter claims that additions of semantic components are involved. In order to identify the responsible components, free associates were generated to otherwise similar high- and low-imagery sentences in a short-term memory task. In accordance with the perceptual elaboration model, associates differed in rated imagery, but not in number. In a second study, the causal role of perceptual elaboration in recall was investigated by using high- and low-imagery sentence associates as recall cues. Differential effects of cue imagery were found for high-imagery sentences, indicating that perceptual codes are in part responsible for superior high-imagery sentence recall. Evidence is presented that perceptual and semantic network components are involved in a processing trade-off, and the adequacy of present network models to explain it is discussed.     

The effect of test type expectation on memory for low-imagery and high-imagery words

With regard to the testing of words varying in rated imagery, subjects were given one of three expectations (recognition, recall, none). Recall-expectation groups produced the largest performance differences for low-imagery and high-imagery words. In contrast to previous research, the best performance was not always produced by a match between test expected and test received.     

Lateral eye movements as indicators of processing strategies in paired-associate learning

Subjects, classified as left-or right-movers on the basis of their lateral eye movements, were presented with paired-associates designed to elicit processing by either the left hemisphere (low-imagery synonyms) or the right hemisphere (high-imagery rhymes), followed by both recall and recognition tests. While recall of high-imagery pairs exceeded that of low-imagery pairs, there were no differences in recognition between the two types of paired-associates. There were no differences in retention between left- and right-movers, suggesting that if these groups differ in cognitive style, such differences may not be reflected in measures of information retention. The types of errors the groups made appeared to be influenced more by differences in information processing strategies.     

Imagery rating and recall in congenitally blind subjects.

Imagery ratings, incidental free recall, and intentional free recall of a group of young congenitally blind adults living in an institute for the blind and of control group were compared. Words to be rated and recalled belonged to three categories: (a) high-imagery words whose referents can be sensorially experienced also by the blind; (b) high-imagery words whose referents cannot be experienced; and (c) low-imagery words. In the control group, both ratings of imagery and recall were affected by the category to which the word belonged. For the blind group the category of the word affected only the ratings of imagery which still assumed a peculiar form since words in category b received extremely low ratings. It is concluded that the blind can evaluate the imagery value of a word, but that their recall is not affected by the level of its imagery value. Therefore, the imagery value really seems to describe, as Paivio asserts, the susceptibility of an item to being coded in a specific visuo-imaginal way, which is more available for sighted than for blind people.     

Effects of Interest,Thematic Congruence,and Typicality on Memory for Television,Radio, and Press Advertisements of New Products

Little is known about how the content of advertisements is remembered. We studied how product interest, thematic congruence between advertisement and programme, and the typicality of the elements of an advertisement affect memory for new product ads in television, radio, and printed media. Participants were exposed to a single type of media with two embedded ads. After a filler task, they completed a true/false recognition task. In television and radio, accuracy was higher for the interesting product ads. In three experiments, we found no effect of thematic congruence, and the standard effect of typicality. In printed media, where participants are free to read the ads or not, the differences in hits and false alarms in typicality were due to a change in the response criterion and not to an effect on memory. We conclude that different results can be obtained depending on the exposure to different media. Copyright © 2015 John Wiley & Sons, Ltd.     

Bilateral tachistoscopic perception, handedness, and laterality.

Right-handed, familial left-handed, and nonfamilial left-handed males and females reported high- or low-imagery words which were located to the left and right of fixation in bilateral tachistoscopic displays. On each trial, an arrowhead appeared in the center of the display. The arrowhead pointed to either the left or the right half-field, indicating the order of report. Right-handers reported more accurately from the right half-field, and familial left-handers reported more accurately from the left half-field. The order of report results showed that right-handers were similar to nonfamilial left-handers; for left half-field presentation, both groups were more accurate when the arrowhead pointed to the left than when it pointed to the right (i.e., first report was more accurate than second report). There was a main effect of word imagery, but this factor did not interact with visual half-field. Thus, there was no evidence that representations of high-imagery words are lateralized differently than representations of low-imagery words. The results are discussed with respect to lateralization of memory for verbal material.     

The Effects of Voice Changes on Orienting and Immediate Cognitive Overload in Radio Listeners

An experiment was designed to identify the voice change as a specific structural feature of radio that causes automatic allocation of cognitive resources to message encoding. The cardiac orienting response (OR) was used as an indication of this automatic resource allocation. It was hypothesized that listeners would exhibit cardiac ORs in response to voice changes and that the associated automatic resource allocation would result in momentary cognitive overload. Data were collected from 62 participants as they listened to nine messages that varied in the number of voice changes they contained. Results show robust cardiac orienting to voice changes and suggest that this response does not habituate over the course of 2-minute messages. Furthermore, auditory recognition data show that not only does orienting to voice changes result in momentary cognitive overload, but the severity of that overload depends on the total number of voice changes in the message.     

Selling Sex to Radio Program Directors: A Content Analysis of Radio & Records Magazine

This study was designed to examine whether radio format and musical artists' gender predict sexual content in trade advertisements geared toward radio program directors. Advertisements were coded from one of the leading music trade magazines, Radio & Records magazine, between 2002 and 2003. Results indicated that overall women artists used sexual content in trade advertisements more often and to a greater degree than did men. In some cases, advertisements in radio formats with younger demographic markets, such as pop or hip-hop, also used higher levels of sexual content. It is concluded that the organizational context of the commercial music industry helps to perpetuate status differences between women and men artists, which may then bring about a cognitive bias in the field that promotes women artists' over reliance on using sexual content in trade advertisements.     

Evidence for two kinds of low-typical instances in a categorization task

Three experiments examined the relationship between instance typicality and reaction time (RT) in a semantic categorization task. In all three experiments, first the instance was presented, and then the category. High-typicality high-imagery instances (e.g., robin) and lowtypicality low-imagery instances (e.g., grackle) were categorized faster than low-typicality highimagery instances (e.g., penguin). Instructing subjects to generate images of the instances had no influence on the pattern of results. The difference in categorization RT for lowimagery low-typicality instances vs. high-imagery high-typicality instances suggests that these instances may be represented differently in memory.     

Sex Really Does Sell: The Recall of Sexual and Non‐sexual Television Advertisements in Sexual and Non‐sexual Programmes

The present study examined memory for advertisements as a function of both advertisement content and the contextual programme content. Participants were randomly assigned to one of two conditions: in one condition, they watched a sexual programme and in the other a non‐sexual programme. Embedded within each programme were the same highly sexual and non‐sexual advertisements that had been matched in pairs for five products. Memory for the advertisements and involvement in the programmes was measured. It was found that on three indices (free recall, brand recognition and prompted recall), memory for the sexual advertisements was superior to that for non‐sexual advertisements. There was no effect of the programme content on advertisement recall and no relationship between programme involvement and advertisement recall. The results are discussed with reference to extant literature on memory for advertisements. Copyright © 2015 John Wiley & Sons, Ltd.     

The associative learning of the deaf: The effects of word imagery and signability

In two experiments, deaf and hearing subjects learned paired associate lists in which rated visual imagery and signability (a measure of the ease with which a word can be represented as a gestural sign) were orthogonally varied. Visual presentation of three alternating study-recall trials resulted in significant positive effects of imagery for both deaf and hearing subjects, whereas signability facilitated recall only for deaf subjects. Examination of the relation between item attributes and reported learning strategy indicated that both deaf and hearing subjects used imaginal mediators more frequently for high-imagery than low-imagery pairs. A gestural sign strategy was reported almost exclusively by deaf subjects, particularly for high-signability pairs. These results suggest that an examination of the effects of sign language variables will contribute to an understanding of the qualitative differences in the associative learning of the deaf and hearing.     

The retention of nouns,adjectives, and verbs of sentences

This research compared the retention of nouns, adjectives and verbs of sentences. A model of the structure underlying the retention of sentences and in which deep structure constituent propositions are hierarchically related, was used to make predictions concerning the retention of these word classes. The model was not supported by the data and it was determined that latencies to recognize the words of a previously presented sentence were the same for all classes of words. This result indicated that for recognition (but not necessarily for other memory tasks), each word of a sentence is seperately or equally accessible (as long as inter-word imagery is the same). However, a further experiment showed that, although word class is not a variable, the image-arousing capacity of a word is. Latencies and error rates were much lower for high-imagery words than for low-imagery ones. The findings on error rates in recognizing words were interesting and pointed to a different model where the meaning representations and syntatic functions of words have an active role in sentence retention.     

Context Effects of Radio Programming on Cognitive Processing of Embedded Advertisements

This experiment tested the hypothesis that the involvement, entertainment and enjoyment properties of radio programmes would be related to memory for the accompanying advertisements and attitudes towards them. Ninety-three subjects listened to one of three radio programmes (a phone-in, a chart show, or a nostalgia programme) in which were embedded a set of four unfamiliar advertisements. Subjects' ratings of the programmes as involving, entertaining, and enjoyable were positively correlated with subsequent ratings of the advertised brands and purchasing intentions. Analyses of variance indicated significant differences in memory for the advertisements and programme ratings: the phone-in programme context, which was rated significantly less interesting, enjoyable and entertaining, and more boring and humorous than the nostalgia radio programme context, produced significantly lower memory for the advertisements. These results provide substantial evidence for context effects operating in the radio medium.     

Visual imagery and knowledge about the visual appearance of objects in patients with posterior cerebral artery lesions

The purpose of this study was to explore whether patients with left posterior cerebral artery (PCA) lesions have defective mental visual imagery and to differentiate whether such a deficit stems from a loss of knowledge about the visual appearance of objects or from an inability to create mental visual images out of preserved visual knowledge. Normal controls and patients with either left or right PCA lesions were asked to verify low- and high-imagery sentences and then to verify pictorial representations of the predicates of high-imagery sentences. High-imagery questions concerned either the shape or the color of objects. In addition, perceptual discrimination of shape and color was assessed. Patients with right PCA lesions were impaired on the perceptual discrimination tasks. Left PCA patients did not significantly differ from controls on low-imagery sentences but scored significantly lower on shape and color questions. Their impairment was distinctly more severe with the pictorial than with the verbal versions of shape and color questions. In comparison to patients with occipital left PCA lesions, patients with temporo-occipital left PCA lesions were selectively impaired on verbal and visual color questions. It is concluded that patients with left PCA lesions lack knowledge about shape and color of objects, but that their ability to convert visual knowledge into mental images is preserved.     

Hemispheric alpha asymmetries of stuttering males and nonstuttering males and females for words of high and low imagery

Alpha hemispheric asymmetries of nonstuttering males, nonstuttering females, and stuttering males were explored with electroencephalographic procedures during exposure to two lists of one-syllable words which the subjects were required to recall following presentation. One word list contained low-imagery words while the other contained high-imagery words. Stuttering males were found to have significantly less alpha in their right hemispheres, suggesting right hemispheric processing strategies. This finding was interpreted as supporting the “segmentation dysfunction” explanation of stuttering suggested by Moore and Haynes (1979b). Nonstuttering males showed less left than right alpha while nonstuttering females revealed no difference between their right and left hemispheres. Differences between nonstuttering males and females are discussed as being task and stimuli dependent relative to the segmental/nonsegmental nature of both task and stimuli. Differential hemispheric asymmetries for words of high or low-imagery were not observed.     

Processes of verbal memory failure in Alzheimer-type dementia

Multiple aspects of verbal learning and memory performance in mild as compared to moderate Alzheimer-type dementia (ATD) were studied with the Buschke selective reminding paradigm. Results show that (1) both groups of ATD subjects depend less on long-term memory (LTM) and more on short-term memory (STM) relative to elderly control subjects, (2) mild ATD subjects show less LTM encoding than moderate ATD subjects, (3) moderate ATD subjects retrieve a smaller portion of the items presumed to be encoded into LTM than do mild ATD subjects, and (4) high-imagery words increase LTM encoding and retrieval as compared to low-imagery words for moderate ATD subjects only. These results are explained by the inability of ATD subjects to attend to more than one component of the list-learning task, in conjunction with differences in the deployment of attention between mild and moderate ATD subjects.     

Influence of Speech Rate and Information Density on Recognition: The Moderate Dynamic Mechanism

This article analyzes whether recognition in the news may be affected by speech rate and information density and addresses what the optimal level would need to be for information on the radio to be encoded and recognized as effectively as possible. The key question is whether the combination of these two factors has a decisive influence on cognitive processing, especially in the distribution of resources allocated and required to encode the message. The findings indicate that Speech Rate does have a decisive influence on recognition of information since it modifies the resources available for encoding the message. The higher the speed, the lower the information density should be and vice versa. The best result to achieve the greatest recognition is between 170 (high density) and 190 (low density) words per minute, confirming that a moderate dynamic mechanism takes place.     

Encoding-imagery specificity in alcohol state-dependent learning.

A free-recall procedure demonstrated state-dependent learning using alcohol. Tests of long-term memory showed that both high- and low-imagery words were less likely to be recalled if stored while intoxicated rather than under sober conditions. However, information encoded and stored while intoxicated was more effectively retrieved when later tests of recall were performed while intoxicated, as compared to recall accomplished in the sober state. This dissociative recall effect was far more robust with low-imagery than with high-imagery words.