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Biomedical subjects

Arthur Wingfield

Publications and source records attributed to Arthur Wingfield.

22 records · Page 2Linked to original sources

The salience of linguistic clauses in young and older adults' running memory for speech.

An experiment is reported in which young and older adults were asked to recall as many words as possible that preceded the sudden interruption of a spoken passage. Both young and older adults' recall predominantly began at a major clause boundaries, with most responses reflecting recall of one or two full clauses. When placed under a heavier processing load induced by artificially accelerating the speech rate, an age dissociation appeared in the form of older adults producing a greater proportion of responses that were less than a full clause in length. With this qualification, however, recall of connected speech by the older adults remained largely organized by the clausal structure of what had been heard. This pattern reflects an organizing feature in language processing and memory that remains well-preserved in normal aging.

Aged↗

Preservation of episodic visual recognition memory in aging.

Visual episodic recognition memory was assessed in young (mean age 22.5 years) and older (mean age 74.1 years) adults. To isolate purely visual memory, recognition was tested with sets of briefly-presented compound sinusoidal gratings, which minimized age-related differences in visual processing, and resisted verbal encoding. Recognition was measured after delays of 1, 2 or 4 seconds. Overall, neither accuracy of recognition nor speed of response differed significantly between groups, or with probe delay, which strengthens recent claims that visual memory tends to be spared during the course of normal aging.

Adult↗

Listening to spoken text: adult age differences as revealed by self-paced listening.

An experiment is reported in which young and older adults heard spoken narratives presented in a segment-by-segment fashion using the auditory moving window (AMW) technique. Participants were instructed to initiate the presentation of each segment at their own pace, their goal being to insure good comprehension of the main ideas of the narratives. The pattern of pause times across passages was compared for passages being heard for the first time (novel condition) or after the participants had heard the passages several times before (familiar condition). The analysis of participants' pause durations in pacing through the passages suggests that although young and older adults respond similarly at the textbase level of processing, older adults do not allocate additional resources at the start of a passage in order to develop a mental model of the narrative. This pattern differs from that typically found in reading time studies.

Aged↗

Effects of adult aging and hearing loss on comprehension of rapid speech varying in syntactic complexity.

Comprehension of spoken language by older adults depends not only on effects of hearing acuity and age-related cognitive change but also on characteristics of the message, such as syntactic complexity and presentation rate. When younger and older adults with clinically normal hearing and with mild-to-moderate hearing loss were tested on comprehension of short spoken sentences that varied in syntactic complexity, minimal effects of age and hearing were seen in comprehension of syntactically simpler sentences, even at rapid speech rates. By contrast, both age and hearing loss were associated with poorer comprehension for more syntactically complex sentences, and these differences were further exacerbated by increases in speech rate. These findings illustrate a dynamic interaction between age, hearing acuity, and characteristics of the spoken message on speech comprehension.

Adolescent↗