Influence of intracerebroventricular administration of dopaminergic drugs on morphine state-dependent memory in the step-down passive avoidance test

The effects of dopaminergic drugs on morphine state-dependent memory of passive avoidance task were examined in mice. Pre-training administration of morphine (5mg/kg) led to state-dependent learning with impaired memory retrieval on the test day which was reversed by pre-test administration of the same dose of the opiate. The pre-test intracerebroventricular (i.c.v.) administration of the dopamine D1 receptor agonist (SKF38393), dopamine D2 receptor agonist (quinpirole) and dopamine D2 receptor antagonist (sulpiride) not only reversed the effect of pre-training morphine treatment, but also increased this action of the drug. Furthermore, the pre-test i.c.v. administration of dopamine D1 receptor antagonist (SCH23390) prevented the restoration of memory by morphine. In conclusion, the morphine-induced recovery of memory, on the test day, seems to be induced, at least in part, through dopamine receptors.     

Nonequivalence of on-line and paper-and-pencil psychological tests: The case of the prospective memory questionnaire

There is growing evidence that Internet-mediated psychological tests can have satisfactory psychometric properties and can measure the same constructs as traditional versions. However, equivalence cannot be taken for granted. The prospective memory questionnaire (PMQ; Hannon, Adams, Harrington, Fries-Dias, & Gibson, 1995) was used in an on-line study exploring links between drug use and memory (Rodgers et al., 2003). The PMQ has four factor-analytically derived subscales. In a large (N763) sample tested via the Internet, only two factors could be recovered; the other two subscales were essentially meaningless. This demonstration of nonequivalence underlines the importance of on-line test validation. Without examination of its psychometric properties, one cannot be sure that a test administered via the Internet actually measures the intended construct.     

A Model of Subjective Well-Being for Adolescents in High School

The aim of this study is to develop and test a subjective well-being model for adolescents in high school. A total of 255 adolescents in high school (131 female and 124 male) participated in this study. Data was collected by using the general needs satisfaction questionnaire, questionnaire for the strategies to increase subjective well-being, life satisfaction questionnaire and positive and negative affects questionnaire. The structural equation modelling method was used for analysis of the data. The results of the analysis showed that in the original model, the individual variables and the total effect of variables were directly and indirectly related to subjective well being of adolescents in high school. The direct and indirect effects of the independent variables to subjective well-being were found significant. The findings suggest that to enhance the subjective well-being of high school students, a combination of strategies and satisfaction of needs is essential.     

The root cause of the attentional blink: First-target processing or disruption of input control?

Identification of the second of two targets (T2) is impaired when presented shortly after the first (T1). T1-based theories ascribe this attentional blink (AB) to a T1-initiated period of inattention. Distractor-based theories ascribe it to a disruption of input control caused by post-T1 distractors. The finding that an AB occurs without intertarget distractors (Nieuwenstein, Potter, & Theeuwes, Journal of Experimental Psychology: Human Perception and Performance 35:159-169, 2009) seemingly disconfirms distractor-based theories. The present experiments addressed different ways in which distractor-based theories might account for that finding. Intertarget events were varied in four experiments. Experiment 1 replicated Nieuwenstein, Potter, and Theeuwes??s findings. The next two experiments tested two ways (lack of visual stimulation, violation of expectation) in which the blank intertarget interval might cause an AB. Experiment 4 explored whether backward-masking of T1 can account entirely for the larger AB obtained with intervening distractors or whether distractors also disrupt input control. The results disconfirm predictions from distractor-based theories and support the claim of T1-based theories that T1 processing alone is sufficient for the AB. Simulations based on the eSTST (Wyble, Bowman, & Nieuwenstein, Journal of Experimental Psychology: Human Perception and Performance 35:787-807, 2009) and the B&B models (Olivers & Meeter, Psychological Research, 115, 836-863 2008) were compared. Predictions were more accurate from the T1-based theory (eSTST) than from the distractor-based theory (B&B).     

Spiritual Needs of the Muslim Elderly Living in Nursing Homes: A Qualitative Study

Journal of Religion and Health - Paying attention to and meeting the needs of people who are elderly helps to improve their health. Caring for the elderly includes addressing...     

Transcendence,the Most Important Spiritual Need of Muslim Older Adults: A Content Analysis Study

Journal of Religion and Health - Healthcare providers agree that promoting spirituality among older adults while caring for them increases their quality of life. However, there is little knowledge...     

Evaluating the Redistribution Policy and the Right to Social Welfare in Kant’s Philosophy

The notion of social welfare was created by the paradigm shift from duty-based to right-based morality, in which the satisfaction of human needs is a right in line with preserving human dignity. This paper investigates Kant’s view on social welfare in light of redistribution policy. Kant bases his political philosophy on external freedom. Notwithstanding the ethical principles of his philosophy, he is the first prominent thinker to clearly emphasize the necessity of a redistribution policy by the government toward providing for the needs of the poor and the needy. The important question remaining is whether or not the Kantian ideas of external freedom and redistribution for the sake of satisfying the right to social welfare can reach a compromise. It seems that Kant believes the redistribution policy to be not the right of the poor to be provided welfare by the state, but the right of the state, and as such, the states' right to task the people with providing for the welfare of the poor. Such a policy challenges the freedom of the wealthier class and apparently leads to an inconsistency between the two pillars of Kant’s sociopolitical philosophy. The current paper aims to find Kant’s response to this challenge by referring to his scattered arguments.     

Off the mark: Repetitive marking undermines essay evaluations due to boredom

Motivation and Emotion - Essay-style assessment is widespread in education. Nonetheless, research shows that this tool can suffer from low reliability and validity. We attribute this problem partly...     

The Persian Version of the Personality Beliefs Questionnaire-Short-Form (PBQ-SF): A Psychometric Evaluation

Journal of Rational-Emotive & Cognitive-Behavior Therapy - The Personality Beliefs Questionnaire-Short Form (PBQ-SF) is the short-form version of PBQ (Beck and Beck in The personality belief...