Do you worry that your memory isn't what it used to be? Forget what you went upstairs for or frequently fail to put a name to a face? A string of moments such as this can make many fear the worst -- that it's the beginning of the slow decline into the horror of dementia. A survey last year by Saga found that most of us dread incurable brain diseases such as dementia more than cancer or a heart attack. Do you have a memory like a goldfish? A string of moments such as this can make many fear the worst -- that it's the beginning of the slow decline into the horror of dementia It's this fear that drives many to seek help.
Recent evidence challenges the widely held view that the hippocampus is specialized for episodic memory, by demonstrating that it also underpins the integration of information across experiences. Contemporary computational theories propose that these two contrasting functions can be accomplished by big-loop recurrence, whereby the output of the system is recirculated back into the hippocampus. We use ultra-high-resolution fMRI to provide support for this hypothesis, by showing that retrieved information is presented as a new input on the superficial entorhinal cortex--driven by functional connectivity between the deep and superficial entorhinal layers. Our findings offer a novel perspective on information processing within the hippocampus and support a unifying framework in which the hippocampus captures higher-order structure across experiences, by creating a dynamic memory space from separate episodic codes for individual experiences.
Former NFL tight end Ben Utecht caught one pass from superstar quarterback Peyton Manning the night of Feb. 4, 2007, helping the Indianapolis Colts win Super Bowl XLI. But that's not the memory he most wants to retain. Or the life experience he most wants to share. Utecht, who sustained five documented concussions during his five-year NFL career with the Colts and Cincinnati Bengals, said Sunday on "Fox & Friends" that he's already experienced some long-term memory problems since he last took the field in 2008. That reality led him to write the autobiographical "Counting the Days While My Mind Slips Away: A Love Letter to My Family."
It was implemented prototypically and tested to support the design process in building engineering (BBrner and Janetzko 1995, B6rner 1995). There are a number of features that distinguish CA from standard approaches to CBR and AR. First of all, CA automatically extracts the knowledge needed to support design tasks (i.e., complex case representations, the relevance of object features and relations, and proper adaptations) from attribute-value representations of prior layouts. Secondly, it effectively determines the similarity of complex case representations in terms of adaptability. Thirdly, implemented and integrated into a highly interactive and adaptive system architecture it allows for incremental knowledge acquisition and user support. This paper surveys the basic assumptions and the psychological results which influenced the development of CA. It sketches the knowledge representation formalisms employed and characterizes the sub-processes needed to integrate memory organization and analogical reasoning. Introduction Building engineering is one of the keystones to economic competitiveness. As a consequence, computa tional models for design are important research topics.