We found that RIF was reduced in patients, compared to healthy controls.
The elimination of RIF effect in patients, when the influence of blocking is reduced,
indicates that inhibitory processes in memory are altered in schizophrenia.
Result suggest that schizophrenic patients suffer from critical impairments in inhibitory processes involved in memory retrieval,
similar to the inhibitory deficits found in other cognitive domains
Patients had significantly reduced total (right plus left) anterior hippocampal formation volume relative to healthy comparison subjects but did not differ in volumes of either the posterior hippocampal formation or amygdala. Similar findings were obtained when analyses were restricted to the antipsychotic-naive subgroup of patients. CONCLUSIONS: These findings suggest that volumetric abnormalities of the hippocampus-amygdala complex may be specific to the anterior hippocampal formation in patients experiencing a first episode of schizophrenia and are consistent with hypotheses regarding abnormal frontolimbic connectivity playing a role in the pathophysiology of the disorder.
Brain areas activated during successful memory encoding comprised the anterior left hippocampus extending into the surrounding parahippocampal gyrus. Regions associated with successful memory retrieval involved a wide-spread network of anterior left parahippocampal gyrus, bilateral temporal cortices and bilateral ventral and dorsal prefrontal areas. Regions contributing to both successful encoding and retrieval, evidenced by a conjunction analysis, revealed prominent left lateralized activations of the anterior hippocampus and the inferior parietal lobe. Our results indicate that the anterior left hippocampus plays an important role during successful memory encoding and during successful memory retrieval in a task of simple, non-associative wordlist learning in healthy elderly subjects.
Patients had significantly reduced total (right plus left) anterior hippocampal formation volume relative to healthy comparison subjects but did not differ in volumes of either the posterior hippocampal formation or amygdala. Similar findings were obtained when analyses were restricted to the antipsychotic-naive subgroup of patients. CONCLUSIONS: These findings suggest that volumetric abnormalities of the hippocampus-amygdala complex may be specific to the anterior hippocampal formation in patients experiencing a first episode of schizophrenia and are consistent with hypotheses regarding abnormal frontolimbic connectivity playing a role in the pathophysiology of the disorder.
the hippocampal formation, a structure within the medial temporal lobe (MTL), plays a critical role in memory for facts and events (declarative memory) (Milner et al., [1998]). However, its precise role remains unclear. According to one view, the hippocampus has a special role in relating or binding together previously unrelated pieces of information, while another view proposes that the hippocampus is equally involved in all forms of declarative memory, regardless of their demands on relational processing. Using functional magnetic resonance imaging (fMRI), we show that hippocampal activation is modulated by the extent to which a retrieval task depends on relational processing
our data are compatible with a view that the hippocampal response to a novel stimulus is an important component in efficient episodic memory formation. By contrast, activation in bilateral posterior hippocampal regions, as exemplars become more familiar, may reflect active processes involved in retrieval.
As the working memory load rises, the active neurons in the parietal lobe increasingly inhibit the activity of surrounding cells. The inhibition of the inter-neuronal impulses eventually becomes so strong that it prevents the storage of additional visual input, although it can be partly offset through the greater stimulation of the frontal lobes. This leads the researchers to suggest in their article that the frontal lobes might be able to regulate the memory capacity of the parietal lobes.
...maybe ...that they do not hold to an internally intended direction, but are distracted by inappropriate external or internal associations, not really wanted, so that they lose track and are taken over by those associations and instead of going on with a task, lose the point or lose the anchoring internal guide ]

They don't hold together the background information that is necessary to continue without mistakes. In tasks, jobs, and in living.

Patients with schizophrenia must take medication regularly to reduce their risk of relapse.

But the condition impairs working memory - meaning these patients may have difficulty in remembering to take their tablets.

Habitual tasks, like taking medicine every few hours, rely on "'prospective' memory". that is, a scheduled signal laid down and stored away in advance brings about the appropriate action at some time in the future

This preamble suggest that schizophrenia does not allow for such a schedule, confidently to be held in mind,

This type of memory, which appears to be impaired by schizophrenia, enables you to remember that you have to do something in the future, without being prompted by something else or somebody else
Ordinarily there is a schedule framework 'inside' which 'reminds' , holds in mind the thing that has to be done at a certain time, does the prompting - time of day - relationship to something else [ a built in prompt - revives what is necessary for the act to be done, soon, tomorrow, next week, whatever ] so as to keeping holding on that topic and keeping to the point or getting back to it ]

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