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Inhibitory Attention Deficit in Patients with Senile Dementia of the Alzheimer Type

The Korean Journal of Cognitive and Biological Psychology / The Korean Journal of Cognitive and Biological Psychology, (P)1226-9654; (E)2733-466X
1995, v.7 no.2, pp.131-142
Young-Hwan Kim (Department of Psychology, Kyungpook National University)
Young-Sun Jin (Department of Psychology, Kyungpook National University)
Ho-Wan Kwak (Department of Psychology, Kyungpook National University)

Abstract

Using a paradigm which shows effects of inhibition of return, two experiments were carried out to examine attentional deficits in patients with Senile Dementia of the Alzheimer Type(SDAT). In experiment 1, using a continuous responding paradigm, we tested whether SDAT group shows inhibition effects. In contrast to normal group, we failed to obtain inhibition of return in SDAT group. In experiment 2, employing a cue-target paradigm, we found that both the normal and the SDAT group showed facilitatory effects of attention in short cue-target SOA conditions. These results suggest that 1) there is no indication of facilitatory attentional deficits in SDAT; 2) SDAT may have problems with inhibitory control of attention in various information processing pathways.

keywords

The Korean Journal of Cognitive and Biological Psychology