Models of Episodic Memory

Author(s):  
Amy H. Criss ◽  
Marc W. Howard

Episodic memory refers to memory for specific episodes from one’s life, such as working in the garden yesterday afternoon while enjoying the warm sun and chirping birds. In the laboratory, the study of episodic memory has been dominated by two tasks: single item recognition and recall. In single item recognition, participants are simply presented a cue and asked if they remember it appearing during the event in question (e.g., a specific flower from the garden) and in free recall they are asked to generate all aspects of the event. Models of episodic memory have focused on describing detailed patterns of performance in these and other laboratory tasks believed to be sensitive to episodic memory. This chapter reviews models with a focus on models of recognition with a specific emphasis on REM (Shiffrin & Steyvers, 1997) and models of recall with a focus on TCM (Howard & Kahana, 2002). We conclude that the current state of affairs, with no unified model of multiple memory tasks, is unsatisfactory and offer suggestions for addressing this gap.

2017 ◽  
Author(s):  
Gregory Edward Cox ◽  
Amy H. Criss ◽  
William Roger Aue ◽  
Pernille Hemmer

The development of memory theory has been constrained by a focus on isolated tasks rather than the processes and information that are common to situations in which memory is engaged. We present results from a study in which 453 participants took part in five different memory tasks: single-item recognition, associative recognition, cued recall, free recall, and lexical decision. Using hierarchical Bayesian techniques, we jointly analyzed the correlations between tasks within individuals—reflecting the degree to which tasks rely on shared cognitive processes—and within items—reflecting the degree to which tasks rely on the same information conveyed by the item. Among other things, we find that (a) the processes involved in lexical access and episodic memory are largely separate and rely on different kinds of information; (b) access to lexical memory is driven primarily by perceptual aspects of a word; (c) all episodic memory tasks rely to an extent on a set of shared processes which make use of semantic features to encode both single words and associations between words; (d) recall involves additional processes likely related to contextual cuing and response production. These results provide a large-scale picture of memory across different tasks which can serve to drive the development of comprehensive theories of memory.Published version now available from the Journal of Experimental Psychology: General: http://dx.doi.org/10.1037/xge0000407


Chelovek RU ◽  
2020 ◽  
pp. 217-220
Author(s):  
Natalia Rostova ◽  

The article analyzes the current state of affairs in philosophy in relation to the question «What is hu-man?». In this regard, the author identifies two strategies – post-humanism and post-cosmism. The strat-egy of post-humanism is to deny the idea of human exceptionalism. Humanity becomes something that can be thought of out of touch with human and understood as a right that extends to the non-human world. Post-cosmism, on the contrary, advocated the idea of ontological otherness of the human. Re-sponding to the challenges of anthropological catastrophe, its representatives propose a number of new anthropological projects.


2010 ◽  
Vol 27 (4) ◽  
pp. 45-67
Author(s):  
Sayed Sikandar Shah ◽  
Mek Wok Mahmud

As an intellectual process, critical thinking plays a dynamic role in reconstructing human thought. In Islamic legal thought, this intellectual tool was pivotal in building a full-fledged jurisprudential system during the golden age of Islamic civilization. With the solidification of the science of Islamic legal theory and the entrenchment of classical Islamic jurisprudence, this process abated somewhat. Recent Islamic revival movements have engendered a great zeal for reinstituting this process. The current state of affairs in constructing and reconstructing Islamic jurisprudence by and large do not, however, reflect the dynamic feature of intellectual thought in this particular discipline. Thus this article attempts to briefly delineate this concept, unveil the reality on the ground, and identify some hands-on strategies for applying critical thinking in contemporary ijtihad.


Author(s):  
Farhan Zahid

Pakistan remains a country of vital importance for Al-Qaeda. It is primarily because of Al-Qaeda’s advent, rise and shelter and not to mention the support the terrorist organization found at the landscape of Pakistan during the last two decades. The emergence of in Pakistan can be traced back to the Afghan War (1979-89), with a brief sabbatical in Sudan the Islamist terrorist group rose to gain prominence after shifting back to Afghanistan. It then became a global ‘Islamist’ terrorist entity while based in neighboring Afghanistan and found safe havens in the erstwhile tribal areas of Pakistan in the aftermath of the US invasion of Afghanistan in 2001. Prior to its formation in 1988 in Peshawar (Pakistan), it had worked as Maktab al-Khidmat (Services Bureau) during the Afghan War.2 It had its roots in Pakistan, which had become a transit point of extremists en route to Afghanistan during the War. All high profile Al-Qaeda leaders, later becoming high-value targets, and members of its central Shura had lived in Pakistan at one point in their lives. That is the very reason the Al-Qaeda in Pakistan is termed as Al-Qaeda Core or Central among law enforcement practitioners and intelligence communities. Without going into details of Al-Qaeda’s past in Pakistan the aim of this article is to focus on its current state of affairs and what future lies ahead of it in Pakistan.


2021 ◽  
Vol 13 (2) ◽  
pp. 703
Author(s):  
Megan Drewniak ◽  
Dimitrios Dalaklis ◽  
Anastasia Christodoulou ◽  
Rebecca Sheehan

In recent years, a continuous decline of ice-coverage in the Arctic has been recorded, but these high latitudes are still dominated by earth’s polar ice cap. Therefore, safe and sustainable shipping operations in this still frozen region have as a precondition the availability of ice-breaking support. The analysis in hand provides an assessment of the United States’ and Canada’s polar ice-breaking program with the purpose of examining to what extent these countries’ relevant resources are able to meet the facilitated growth of industrial interests in the High North. This assessment will specifically focus on the maritime transportation sector along the Northwest Passage and consists of four main sections. The first provides a very brief description of the main Arctic passages. The second section specifically explores the current situation of the Northwest Passage, including the relevant navigational challenges, lack of infrastructure, available routes that may be used for transit, potential choke points, and current state of vessel activity along these routes. The third one examines the economic viability of the Northwest Passage compared to that of the Panama Canal; the fourth and final section is investigating the current and future capabilities of the United States’ and Canada’s ice-breaking fleet. Unfortunately, both countries were found to be lacking the necessary assets with ice-breaking capabilities and will need to accelerate their efforts in order to effectively respond to the growing needs of the Arctic. The total number of available ice-breaking assets is impacting negatively the level of support by the marine transportation system of both the United States and Canada; these two countries are facing the possibility to be unable to effectively meet the expected future needs because of the lengthy acquisition and production process required for new ice-breaking fleets.


2021 ◽  
Vol 13 (3) ◽  
pp. 1366
Author(s):  
Stefan Greiving ◽  
Leonie Schödl ◽  
Karl-Heinz Gaudry ◽  
Iris Katherine Quintana Miralles ◽  
Benjamín Prado Larraín ◽  
...  

In Chile and Ecuador, multiple hazards and dynamic processes in vulnerability pose a high risk. Spatial planning and emergency management can contribute to disaster risk management but they follow different goals. However, global goals, such as from UN-ISDR (United Nations International Strategy for Disaster Risk Reduction) and UN SDGs (Sustainable Development Goals) can potentially support cities and regions in defining concerted action. This paper aims at measuring the performance of Chile and Ecuador in regard to the aforementioned policy goals. Although both countries show considerable progresses in the implementation of the UN strategies, it is doubtful that the existing global monitoring approach is appropriately designed for measuring the real situation on the ground. Our paper is based on a desktop research combined with stakeholder workshops and expert interviews. Overall, both countries made considerable progress in regard to disaster preparedness and monitoring. However, multi-risks are rarely considered and there is still increasing vulnerability due to the expansion of informal settlements. The risk management is characterized by an imbalanced distribution of financial resources and institutional capacities between the metropolitan regions and smaller municipalities, and by low public participation and hardly community-based approaches. The paper underlines the importance for more qualitative, in-depth studies on the root causes of disaster risk which could complement the global monitoring which is very much focused on quantitative data and shows inconsistency between input and output indicators.


Sign in / Sign up

Export Citation Format

Share Document